Patents Issued in February 29, 2000
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Patent number: 6029687Abstract: An assembling structure for balance valve of cold/hot water mixing valve. The assembling structure includes a mixing valve cartridge a bottom wall of which is formed with a lower balance valve cavity above the cold and hot water incoming holes thereof, and a circular balance valve cover board formed with cold and hot water incoming holes and mixing water outgoing hole corresponding to the water holes of the cartridge. A lower surface of the balance valve cover board is formed with an upper balance valve cavity at the cold and hot water incoming holes thereof. The lower surface of the balance valve cover board is further formed with a sealing groove along the edges of the mixing water outgoing hole and the upper balance valve cavity. When the balance valve cover board is fixedly rested on the upper surface of the bottom wall of the cartridge, the cover board via a balance valve seal is sealedly positioned in the sealing groove and pressed by the bottom wall of the cartridge.Type: GrantFiled: November 25, 1998Date of Patent: February 29, 2000Inventor: Chia-Bo Chang
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Patent number: 6029688Abstract: The invention is a water wheel supplying energy to a pump. The pump will typically be used to apply chemical treatments to the water stream. Some examples of chemicals to be added are acids or bases to bring the pH to an acceptable level, precipitation aids for suspending metal out of water, coagulants to aid in filtering dissolved solids out of water, flocculants to aid in filtering dissolved ions out of water, chlorine, or coloring to prevent growth of algae.Type: GrantFiled: August 26, 1998Date of Patent: February 29, 2000Inventor: Michael J. Kaufman
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Patent number: 6029689Abstract: A communication area of a left pressure reception chamber, a pressure reception chamber, a right pressure reception chamber and another pressure reception chamber for moving a spool to first and second positions with a first pump port and a second pump port is made large at the beginning of a stroke, small at the intermediate of the stroke and medium at the end of the stroke so as to return the spool from the first and second positions to the neutral position in a short time while preventing cavitation from occurring. While the volume of the pressure reception chamber located opposite to the moving direction of the spool is prevented from changing, the spool is moved slowly in the above-described opposite direction. Thus, the spool is prevented from making an over-stroke and also prevented from having a hunching even if a return pressure oil has a large change in pressure.Type: GrantFiled: October 19, 1998Date of Patent: February 29, 2000Assignee: Komatsu Ltd.Inventors: Mitsuru Arai, Hiroshi Endo
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Patent number: 6029690Abstract: An inlet portion of a valve, comprising a tube element having at least one connecting piece which forms the connection of a connecting tube which in turn is connected to a water supply net. The connecting piece is provided with a tube part being coaxially arranged to the connecting tube, which tube part extends partly into the tube channel of the connecting tube. The tube part has such dimensions that a slit space is maintained between the tube part and the channel wall of the connecting tube.Type: GrantFiled: October 23, 1998Date of Patent: February 29, 2000Assignee: Gustavsberg V.ang.rg.ang.rda Armatur AbInventors: Matti Weineland, Kurt Borjesson, Berndt Larsson
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Patent number: 6029691Abstract: In-line control valve constructions are described which include a piston-type valve assembly and a plurality of control chambers (C1,C2,C3,C4) controlled via one or more controls ports (CP1, CP2) to provide a normally-open valve may be closed by controlling the fluid pressure applied to the control port (CP1, CP2), or a normally-closed valve which may be opened by controlling the fluid pressure applied to the control port (CP1,CP2). Also described are valves which have a balanced construction and which therefore include relatively small actuators for opening and closing the valve.Type: GrantFiled: July 8, 1998Date of Patent: February 29, 2000Inventor: Elhanan Tavor
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Patent number: 6029692Abstract: A valve includes a valve stem that is rotatable through 90.degree. for opening and closing the valve. A lever sleeve is securely mounted to the exterior end of the valve stem, and includes at least one pair of diametrically opposite threaded apertures. An indicator cap includes a side wall that is mountable over the lever sleeve. The side wall includes an aperture. The indicator cap is mounted on the sleeve such that the aperture aligns with a selected one of the threaded apertures in the lever sleeve. A handle then is passed through the aperture in the indicator cap and is engaged in the threaded aperture of the lever sleeve for selectively rotating the valve stem. If an obstacle near the valve restricts rotation of the handle, the handle is removed, the indicator cap is rotated 180.degree. and the handle is positioned in the diametrically opposite threaded aperture of the lever sleeve.Type: GrantFiled: February 2, 1999Date of Patent: February 29, 2000Assignee: Parker Hannifin CorporationInventor: Patrick P. Barber
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Patent number: 6029693Abstract: A valve driving apparatus for actuating a shutoff valve or a dump valve provided in a pipeline for conveying a gaseous or liquid substance. The valve driving apparatus is constructed by disposing a gas/oil type booster and a hydraulic pump between a gas pipe which is branched from a primary side of the gas pipeline and a cylinder of an actuator and connecting them with a pipe thereby driving the actuator to close the shutoff valve or open the dump valve with the hydraulic pressure raised by the booster with the primary side pressure of the gas pipeline as the power source and meanwhile resetting the booster with a hydraulic pump disposed between the booster and the actuator thereby enabling the gas in the booster to return to the gas pipeline via the gas pipe.Type: GrantFiled: July 23, 1997Date of Patent: February 29, 2000Assignee: Kitz CorporationInventors: Sadayuki Nakanishi, Yoshiharu Sato, Akio Fukunaga
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Patent number: 6029694Abstract: This pressure regulator prevents unpleasant vibration of the closing body. In the pressure regulator, a friction spring that is simple to mount is provided, by means of which the vibration of the closing body can be suppressed or reduced. The pressure regulator is intended in particular for fuel supply systems of motor vehicles that have an internal combustion engine.Type: GrantFiled: December 1, 1997Date of Patent: February 29, 2000Assignee: Robert Bosch GmbHInventors: Helmut Schwegler, Roland Hoepfl, Wolfgang Bueser, Uwe Talmon, Lorenz Drutu
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Patent number: 6029695Abstract: A high pressure rotary union characterized by easy field maintenance and optimal simplified design. This design ensures high-speed operation without any significant loss of water pressure at pressures of about 4000 p.s.i. Vents are provided through which fluid bypassing the main seal exits the housing, providing an indication of loss of main seal. A secondary seal is provided to protect the bearing(s) from fluid.Type: GrantFiled: July 24, 1998Date of Patent: February 29, 2000Inventor: Michael Logan
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Patent number: 6029696Abstract: An air bleed device for a rigid closed housing having a vent hole in a vehicle power transmission system has a baffle portion and a vent portion, connected through a neck portion. In use, the baffle portion is positioned inside the housing and is significantly larger than the vent hole, so it may not be deformed sufficiently to pass through the vent hole. The baffle portion is a pair of planar pieces held in spaced apart relationship by a wall portion which runs along the periphery of the planar pieces and leaves an opening to give access to a plenum between the planar pieces. An outer surface of one of the planar pieces rests against the inner wall of the housing. The vent portion has a collar with a decreasing diameter which may be pulled through the vent hole in a deformed manner and a lower flange-like surface of the collar rests against the outer wall of the housing. When installed in the vent hole, the neck portion provides a frictional fit due to its outside diameter.Type: GrantFiled: August 24, 1998Date of Patent: February 29, 2000Assignee: Dana CorporationInventor: Gregory L. Heatwole
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Patent number: 6029697Abstract: A vent device connectible in a fill pipe of an underground fuel storage tank having a cylindrical housing with a drop tube and a J-shape tubular fitting with two open ends. The first open end is open within the drop tube and directed toward the underground fuel tank and the second open end is exposed through the wall of the cylindrical housing into an upper portion of the underground fuel storage tank. The tubular fitting has an expansion chamber vertically disposed between the two open ends for holding a float ball therein. The float ball is confined within the expansion chamber by a lower seat of the chamber and a barrier extending across the diameter of the chamber to prevent the float ball from sealing the upper seat of the chamber.Type: GrantFiled: June 17, 1998Date of Patent: February 29, 2000Assignee: EBW, Inc.Inventors: Paul E. Phillips, Ian Taylor
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Patent number: 6029698Abstract: A device for regulating exhaust air flow in a ventilation system when a rack is removed from the system. The device includes a housing forming an air conduit. A valve is mounted in the housing with the valve being moveable between an open position when the device is connected to the rack, and in one of a plurality of partially preset closed positions when the device is not connected to the rack. A valve adjustment member selects the one of a plurality of partially closed positions and is preset during factory testing. When valve is installed at facility and valve is removed from rack the adjustment is fully automatic. The technician merely disconnects the exhaust drop hose with valve attached, and valve automatically adjusts to a preset back pressure duplication position (partially closed position).Type: GrantFiled: June 17, 1998Date of Patent: February 29, 2000Assignee: Lab Products, Inc.Inventors: Dale Murray, John E. Sheaffer, Ronald W. Hardesty
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Patent number: 6029699Abstract: A water tap particularly for kitchen sinks includes a body member attachable to the kitchen sink and having first and second ports for connection to hot and cold water supply lines, respectively, of the kitchen sink and a third port for connection to a third water supply line; and a handle rotatably mounted about a longitudinal axis with respect to the body member and operatively connected to a valve assembly such that: (a) rotating the handle to a selected position within a first operating region connects the first and second ports to a mixing chamber and controls the proportions of the hot and cold water supplied to the mixing chamber from the respective hot and cold water supply lines for discharge through a spout; and (b) rotating the handle to a selected position within a second operating region connects the third port to the spout for discharging water from the third water supply line.Type: GrantFiled: November 16, 1998Date of Patent: February 29, 2000Inventor: Yoav Granot
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Patent number: 6029700Abstract: A dual valve fitting enables pressure within a housing to be quickly measured. The fitting defines a passage between its threaded and protuberant ends. The threaded end screws into the housing. In an upper section of the passage, a first valve atop a valve stem features a poppet head that is seatable against an outer valve seat. A first biasing mechanism compels the head against the outer seat to keep the first valve normally closed. In a lower section of the passage, a second valve features a seat piece and a valve retainer. On its periphery, the seat piece carries an o-ring which sealingly secures the piece within the passage. The piece defines an inner bore between its ends and has an inner valve seat on its bottom. The top of the retainer is extendable through this inner bore to a point a dead space apart from a bottom of the stem. Around its bottom, the retainer carries an annular check valve.Type: GrantFiled: August 31, 1998Date of Patent: February 29, 2000Assignee: Westinghouse Air Brake CompanyInventors: Vincent F. Troiani, Gregory L. Johnston, John B. Carroll, Gary M. Sich, Wei Li, Robert D. Dimsa, Michael J. Veltri, Daniel G. Scott
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Patent number: 6029701Abstract: A quick-connect coupling for pressurized fluid lines includes a male element and a female element whose connecting ends are each closed off by valves. Each valve comprises a sealing member which engages with the sealing member of the other valve during connection. A return spring pushes the sealing member against a seat and an abutment limits the opening stroke of the sealing member. The abutment of the element under pressure is fixed and positioned in such a way that the sealing member engages with the abutment when the male and female elements are connected. The other abutment is mounted in the other element in a sliding manner and includes first and second sliding sleeves. The front end of a second of the sleeves forms a valve sealing member and includes holes located directly behind the sealing member enabling fluid to flow through the body. The rear end of the second sleeve is shaped for engagement with a front end surface of a first of the sleeves.Type: GrantFiled: March 6, 1998Date of Patent: February 29, 2000Assignee: Parker Hannifin SAInventors: Claude Chaffardon, Liana Hardy
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Patent number: 6029702Abstract: An internal diffuser on a diffuser stem is disposed in a bore of a rotary control valve for attenuating vibration in gas service or cavitation in liquid service. The valve has a valve body and a valve element, and the valve element is rotatable with respect to the internal diffuser. The internal diffuser can be rotatable or non-rotatable with respect to the valve body. The valve element has a valve stem, and the internal diffuser can be arranged coaxially with the valve stem, but this is not a necessary requirement. In one embodiment the internal diffuser is positioned in the bore of the valve element, and the diffuser stem is parallel with the valve stem and spaced laterally apart from it. In another embodiment the internal diffuser is located in the bore of the valve outside of the valve element in either an inlet or an outlet passage of the valve body. The diffuser stem has an axis which can be nonparallel with respect to the axis of the valve stem.Type: GrantFiled: March 6, 1997Date of Patent: February 29, 2000Assignee: Dresser Equipment Group, Inc.Inventors: Chris M. Leinen, Stephen S. Hodgson
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Patent number: 6029703Abstract: A solenoid control valve (10) that includes an electromagnetic coil (30) positioned within a housing (16) and a spool valve (72) positioned within a central bore (70) of a valve body (20). An armature (40) is axially positioned within the coil (30) and an armature spring (52) biases the armature (40) against an opening in the central bore (70) when the coil (30) is not energized. The spool valve (72) includes an internal chamber and a pair of sealing lands (98,100) that selectively seal a supply port (92) and a control port (94) within the valve body (20). A pole piece (26), including an annular flux shunt portion (62), is threadably engaged with the housing (16) to control a working air gap (60) between the pole piece (26) and the armature (40). The flux shunt portion (62) more radially directs the electromagnetic field lines to weaken the magnetic force as the armature (40) moves closer to the pole piece (26).Type: GrantFiled: December 18, 1998Date of Patent: February 29, 2000Assignee: Borg-Warner Automotive, Inc.Inventors: Bradley C. Erickson, Garrett R. Holmes
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Patent number: 6029704Abstract: An electromagnetic control valve is composed of a spool section for switching fluid passages on or off, a solenoid section for driving the spool in one direction, a magnetic moving core slidably disposed in the stator, a nonmagnetic shaft fixed to the moving core, and a spring member for biasing the spool in the direction opposite to the one direction. The spool section includes a spool and a sleeve. The solenoid section is connected to the spool section and includes a cylindrical magnetic stator, cylindrical magnetic yoke disposed to surround the stator and a magnetic coil disposed between the stator and the yoke. The stator is fixed to the sleeve at one end and having a bottom at the other end thereof. The shaft has one end to be in contact with the end of the sleeve thereby positioning the moving core in a longitudinal direction in the stator.Type: GrantFiled: February 1, 1999Date of Patent: February 29, 2000Assignee: Denso CorporationInventors: Koji Kuroda, Isao Hattori, Hiroshi Numata, Yoshitsugu Kida
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Patent number: 6029705Abstract: A gas control valve is disclosed which enables a variable adjustment of the gas flows. Furthermore, a remote control may be utilized in conjunction with the gas control valve. The manufacturing expense and the size is kept at the lowest possible minimum. The main valve in the casing is followed by a switch which is known per se and equipped with a springy element and which, in conjunction with two valves, enables a modulating control with jerk-like on/off switching in the partial load range. This switch can be actuated by a tappet which is movable in longitudinal direction and projects beyond the gas-bearing casing to the outside and whose position can be changed by means of an operating element. The operating element can be actuated manually and/or via a driving unit in the form of an electrically driven motor coupled with a battery. The gas control valve for a gas-heated fireplace or similar installation serves the largest possible manipulation of the visible flames, in particular for decorative reasons.Type: GrantFiled: March 11, 1998Date of Patent: February 29, 2000Assignee: Mertik Maxitrol GmbH & Co., KGInventor: Barbara Happe
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Patent number: 6029706Abstract: A valve of a storage tank for transporting oils or chemical compounds avoids problems caused by crossing a suction path for external air with a pathway for outputting volatile gases from the storage tank. The valve includes an upper body having a circular inclined hole formed at its top surface; a lower body with an enforcing frame, a circular flange and connection bars; a stem formed at the bottom of the inclined hole at which a screw and a sleeve-shaped rod are formed; a disc having a boss supported by several enforcing spokes; a circular auxiliary plate connected to the screw of the stem; a bushing supporting a weight laid on top of the auxiliary plate; a lock nut fixing the auxiliary plate to the screw of the stem; and a cap having a hole into which the sleeve-shaped rod of the stem can be inserted and another hole in the cap connected to the first hole in the cap.Type: GrantFiled: September 24, 1998Date of Patent: February 29, 2000Assignee: Korea Steel Power Co. Ltd.Inventor: Kwang Il Joo
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Patent number: 6029707Abstract: A water handling system including a black water drain line for draining a black water tank including an operator controlled slide valve in such line; a grey water drain line for draining a grey water tank including an operator controlled slide valve in such line; a termination drain line coupling the outlets of both the black water drain line and the grey water drain line, the termination drain line having screw threads on its outlet end; a grey water tank positionable in the bed of a truck; a hose with a threaded inlet end and a threaded outlet end couplable to the grey water tank; a pump having a threaded inlet end and an outlet end with an adapter having threads couplable to the inlet end of the hose; a coupling cap with a central aperture adapted to receive the inlet end of the pump therethrough and a nut releasably couplable to the input end of the pump; and an electric line couplable between the pump and the power source in the truck.Type: GrantFiled: November 2, 1998Date of Patent: February 29, 2000Inventor: Ernest C. Couch
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Patent number: 6029708Abstract: A pulsation noise damper has an axially symmetrical housing (4) forming a chamber (3) in which pressurized hydraulic fluid flowing in an elevator system hydraulic line can expand. For the collection of contaminates in the hydraulic fluid a filter (6) is arranged at one of a pair of input/output openings (5) formed the housing (4). A pair of compression elements (7), each in the shape of an elastic bellows, are positioned in end openings (4a) formed in the housing (4) and the stiffness of each is selectively adjusted by a movable pressure plate (8) coupled to a fastening element (9). In this way the pulsation noise damper can be adapted to various levels of pulsation energy. The compression elements (7) are retained by end caps (1) attached to the housing by fasteners (2) and the fastening elements (9) extend through the end caps and are fixed by nuts (10).Type: GrantFiled: March 11, 1998Date of Patent: February 29, 2000Assignee: Inventio AGInventors: Charles P. Spell, II, Terry D. Holmes, Dean Chow
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Patent number: 6029709Abstract: The present invention is an enclosure for securing selective access to the hollow interior of cylindrical pipes. The preferred embodiment comprises a selectively engagable toggling mechanism contained within a cylindrical body which transmits removal forces into increased frictional removal resistance forces. Toggling cross-arms provide the frictional resistance to removal by gripping the inner wall of the pipe. The device may also include a pipe interior seal and vent.Type: GrantFiled: July 16, 1997Date of Patent: February 29, 2000Inventor: James Gordon Burgess
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Patent number: 6029710Abstract: Process for repairing plastic coatings of metal pipes that allows one to make the repair using only a flame as a source of heat, including the application of protective shields during specific operating phases of the process.Type: GrantFiled: February 4, 1999Date of Patent: February 29, 2000Assignee: Montell North America Inc.Inventors: Gian Luigi Rigosi, Roberto Marzola
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Patent number: 6029711Abstract: A hose for hose pumps is provided. The hose has, in the unloaded state, an essentially elliptical cross-sectional profile with a long semiaxes ending in a point, with an outer width B1 of about 0.8 to 10 mm, a maximum outer height H1 of about 0.4 to 5 mm, the numerical ratio of the outer width B1 to the maximum outer height H1 being about 2:1, and with a wall thickness of about 0.3 to 2 mm, wherein the hose essentially consists of one of the elastic materials rubber, silicone rubber, nylon, polyethylene or polyamide.Type: GrantFiled: April 9, 1999Date of Patent: February 29, 2000Assignee: Drager Medizintechnik GmbHInventors: Jochim Koch, Ralf Ernst Loser
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Patent number: 6029712Abstract: A hose and wire casing adapted to withstand biological and chemical attacks. The hose/wire casing is manufactured by placing a barrier wrap of elastomer and ultra-high-molecular-weight-polyethylene around a hose body or conductor bundle. The two parts are then cured into a single unit using high temperature and high pressure. The combination of high temperature and high pressure minimize the porosity of the high-molecular-weight-polyethylene. The resulting hose/wire casing is particularly immune to chemical and biological attacks by an enemy and is easily cleaned of such agents using a variety of cleansing and neutralizing agents such as DS2, bleach, and strong bases. This cleaning results in a hose which may be handled safely with bare hands after decontamination.Type: GrantFiled: December 12, 1997Date of Patent: February 29, 2000Inventor: Robert C. Dougherty
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Patent number: 6029713Abstract: In a electric cable conduit provided with one or opposite locking device(s) (10-10.3) for connecting a lid clamp (2, 2.1) with one or both side walls (4-4.4, 5-5.4) of the cable channel (1, 1.1), the lid clamp (2, 2.1) has at least one wing (7-7.4) which is connected with a second wing (8-8.4) or an intermediate member (6) by a flexible hinge (9.1, 9.Type: GrantFiled: May 5, 1998Date of Patent: February 29, 2000Assignee: Hilti AktiengesellschaftInventor: Giovanni Miranda
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Patent number: 6029714Abstract: A stainless steel pipe of the bright annealing finish type, having a highly-soothed inner surface according to the present invention is characterized in that the inner surface roughness of the pipe, expressed in Rmax is 1.0 micrometer or less, and suitable as a clean pipe for use in an apparatus for the production of semiconductors. According to the method of production of the present invention, a stainless steel pipe having a highly-smoothed inner surface can be obtained by cold drawing and bright annealing treatment only. By this method, such a treatment that has been considered to be essential, for example, electrochemical polishing can be omitted, so that the production cost can be greatly reduced. The stainless steel pipe of the invention can thus be widely utilized in the fields of the production of semiconductors and the like.Type: GrantFiled: October 10, 1996Date of Patent: February 29, 2000Assignees: Sumitomo Metal Industries, Ltd., Sumikin Stainless Steel Tube Co., Ltd.Inventors: Yoichi Imamura, Munekatsu Furugen, Hajimu Choba
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Patent number: 6029715Abstract: A pile warp tension control method uses a pile warp tension control device capable of adjusting the tension of pile warp yarns according to a weave on a pile fabric loom. The pile warp tension control method involves setting a first pile warp tension amount for a pile weave section weaving mode for use in weaving a pile weave section, and setting second pile warp tension amounts for ground weave section weaving modes, respectively, for use in weaving ground weave sections, where the second pile warp tension amounts are higher than the first pile warp tension amounts. The control method further involves gradually increasing the tension of the pile warp yams from the first pile warp tension amount toward a selected one of the second pile warp tension amounts in a predetermined period after the change of the operating mode of the pile fabric loom from the pile weave section weaving mode to the ground weave section weaving mode.Type: GrantFiled: October 5, 1998Date of Patent: February 29, 2000Assignee: Tsudakoma Kogyo Kabushiki KaishaInventors: Masato Matsumoto, Zenji Tamura
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Patent number: 6029716Abstract: A tire inflating method and apparatus, allowing inflation of different sized tires without changing over a tire inflation device. The tire inflation device has two chambers, an inner chamber and an outer chamber. The inner chamber is within the outer chamber and extends downwardly when a smaller sized rim is being used. The tire inflation device has a linear transducer, with a magnetic ring, that determines the height of the tire inflation head and knows when to shut off inflation. A method of inflating tires without changing over an inflation device is also provided. The method includes the steps of photo switches detecting the size of the rim being used, an inflation head adjusting to a corresponding size of the tire rim, and the inflation head inflating the tire and rim to a specified pressure.Type: GrantFiled: December 29, 1998Date of Patent: February 29, 2000Assignee: MTD Products IncInventor: Homer J. Hawk
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Patent number: 6029717Abstract: Containers for ultrahigh purity chemicals having aspect ratios of greater than 3:1 and methods of making the same from seamless electropolished stainless steel tubing are described. Chemical delivery systems for semiconductor fabrication processes that utilize these high aspect ratio containers also are described.Type: GrantFiled: November 29, 1996Date of Patent: February 29, 2000Assignee: Advanced Delivery & Chemical Systems, Ltd.Inventors: Stephen H. Siegele, John N. Gregg, Craig M. Noah
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Patent number: 6029718Abstract: This invention concerns a shipping and containment cart, comprising: a base having three sides and one or more doors attached thereto, wheels attached to the base, a top attached to the sides having a tank hole, wherein the base, sides, and doors have been attached to provide a sealed compartment. This invention also concerns a chemical delivery cabinet, comprising: a base, three sides, and one or more doors attached to one or more sides, a valve manifold affixed to an inner wall of the cabinet, process control instrumentation which connects to and controls the valve manifold, wherein at least one of the doors has a touch control pad mounted thereon.Type: GrantFiled: June 26, 1998Date of Patent: February 29, 2000Assignee: Advanced Delivery & Chemical Systems, Ltd.Inventors: Robert M. Jackson, Craig Esser, Eric Serdahl, John N. Gregg
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Patent number: 6029719Abstract: 1. A fuel tank (1) having a filler neck (3) closable by a filling flap (2), the volatile fuel components (5) located in free space (4) of the fuel tank (1) being able to be fed into a storage chamber (7) filled with an absorption element (6), including a vent line (8) that connects the free space (4) to the storage chamber (7) and is closable by a valve (9). The filler neck (3), on the side facing away from the fuel tank (1), has a plug fitting (10) with a valve support (11). The valve (9) includes a sealing flap (12), the sealing flap (12) and the filling flap (2) forming components of the valve support (11), each being able to pivot about a shaft (13,14), and, being acted upon by spring tension, each being able to be placed against a valve seat (15,16) in the valve support (11).Type: GrantFiled: April 13, 1998Date of Patent: February 29, 2000Assignees: Firma Carl Freudenberg, Kautex Textron GmbH & Co. KGInventors: Hartmut Hor, Joachim Heinemann, Jurgen Kriebel, Axel Wagner
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Patent number: 6029720Abstract: A generally oval upper body supports a generally cylindrical lower body comprising an outlet tube on which is mounted an inner piston containing an annular resilient sealing member adapted to be connected to the tubular inlet fitting of a liquid coolant system. The lower body supports a set of arcuate collar sections which are cammed inwardly for gripping external threads on the inlet fitting in response to axial movement of an outer air actuated annular piston surrounding the outlet tube. The sealing member is compressed axially into the upper face of the inlet fitting in response to axial movement of the inner air actuated annular piston confined between the outlet tube and the outer piston.Type: GrantFiled: June 29, 1998Date of Patent: February 29, 2000Inventor: Mark D. Swinford
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Patent number: 6029721Abstract: A portable work bench includes a structural body, and a platform disposed on the structural body, a clamping mechanism disposed on one of the body and the platform, the clamping mechanism comprising a rod rotatably attached to the one of the body and the platform, and a block movably connected to the rod and movable between a first position contacting the other of the body and the platform and a second position bypassing the other of the body and the platform. The work bench may also include a plurality of legs supporting the structural body. The structural body preferably has a rectangular cross-section. Preferably the rod is rotatably attached to the platform, and the rod rotates about an axis substantially parallel to the bottom surface of the platform. The rod may have an end bent away from the platform. Preferably, the block is pivotally attached to the end.Type: GrantFiled: May 27, 1999Date of Patent: February 29, 2000Assignee: Black & Decker Inc.Inventor: Michael L. O'Banion
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Patent number: 6029722Abstract: A shaping machine has at least one rotatably driven spindle having a conical receiving opening. A tool is provided. A conical member is mounted in the receiving opening, wherein the tool is secured by the conical member to the spindle. A clamping device clamps the conical member in the receiving opening, wherein the tool is supported on an end face of the spindle.Type: GrantFiled: December 18, 1998Date of Patent: February 29, 2000Assignee: Michael Weinig AGInventor: Heinrich Englert
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Patent number: 6029723Abstract: A purse system comprising a purse housing having a plurality of fasteners on the exterior surface thereof that work in connection with a variety of cover members that snap-fit to the housing. In addition, a variety of straps and strap assemblies are also securable to the housing.Type: GrantFiled: October 7, 1998Date of Patent: February 29, 2000Inventors: Rebecca M. Baquero, Steven J. Baquero
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Patent number: 6029724Abstract: A foldable wallet includes a plurality of pockets bearing identifying indicia for holding credit cards and the like. A front panel is provided with spaces for presenting identifying descriptions of the items in one of the pockets and identifying indicia corresponding to the indicia on one of the pockets.Type: GrantFiled: February 23, 1998Date of Patent: February 29, 2000Inventor: Jack Rudnick
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Patent number: 6029725Abstract: The present invention is an improved tire design including a continuous annular band or a belt formed of a plurality of relatively flat rigid plates embedded in the rubber between the tread and body plies. The plates are curved to conform to the radius of the tire and are pivotally linked or otherwise pivotally connected together thereby creating a flexible annular belt that is extremely stiff in the in-plane or steering torsional direction due to the engagement of the side edges of the adjacent plates when experiencing an in-plane or steering torsional force but flexible in the radial direction due to the pivotal connection between the adjacent plates.Type: GrantFiled: June 25, 1998Date of Patent: February 29, 2000Assignee: Bridgestone/Firestone, Inc.Inventor: Neel K. Mani
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Patent number: 6029726Abstract: An apparatus for installing a cured in place lateral seal in an existing main pipeline wherein the lateral seal includes a brim portion bonded to a short tubular portion is provided. The apparatus includes a flexible bladder mounted on a cylindrical housing with the bladder having a recess with an inflatable arm which can be tucked within the housing for receiving the tubular portion of the seal with the brim portion along the outer portion of the bladder. The cartridge is removably mountable on a sled or robot device with positioning motors for positioning the seal at the opening of the lateral pipeline. The use of replaceable bladder cartridges allows an operator to load a second new seal on a cartridge a first seal on a bladder cartridge mounted on the sled is being cured in place.Type: GrantFiled: November 26, 1997Date of Patent: February 29, 2000Assignee: Insituform (Netherlands) B.V.Inventors: John Tweedie, Philip M. Smith, Jeff P. Wells, Kerry D. Severs, Kevin P. Murray
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Patent number: 6029727Abstract: An orbital vibration generator means comprising, in addition to a clamp 4, 5 for holding a pair of thermo plastic pipes coaxially and a pressurizing means 2, 3, 14 for bringing into contact under a pressure junction end faces of a pair of thermo plastic pipes 10, 11 held by these clamps, a crank shaft 8 having a shaft portion 8a and a crank portion 8b in which the axes of these shaft portion 8a and crank portion 8b are eccentric, a motor 6 for giving rotation to the crank shaft 8, a bearing 9 attached to the crank portion 8b of said crank shaft 8, and a orbital vibration clamp 13 holding pipe an end portion of a thermo plastic pipe, formed integrally with the outer ring of the bearing 9 to move integrally with said bearing.Type: GrantFiled: April 13, 1998Date of Patent: February 29, 2000Assignee: Nippon Kokan Koji Kabushiki KaishaInventors: Hirokazu Nomura, Kiyoteru Hirabayashi, Wenjie Mao
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Patent number: 6029728Abstract: A continuous flow device for use in association with computer printer invoices including side tear holes, the apparatus comprises an invoice support assembly comprising a center section and first and second arm sections, the center section having a bottom region and a top region, the top surface having two short side edges and two long side edges, each arm section of the invoice support assembly having inner and outer long side edges and two short side edges, each inner long side edge being hingedly coupled to the top region of the center section; and a plurality of connectors each including an adhesive surface thereon, an adhesive strip being coupled on top of the adhesive surface, in an operative orientation a user placing a connector on the center section and removing the adhesive strip, the user then positioning a first invoice on the first arm section and a second invoice on the second arm section thereby coupling the invoices together.Type: GrantFiled: December 20, 1996Date of Patent: February 29, 2000Inventor: James Hetem
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Patent number: 6029729Abstract: The invention provides a device for applying adhesive mounting tape from a roll on sections of walls, floors or ceilings, in particular on floor/wall finishing strips, for the purpose of attaching elements, which device has a handle and in the case of which there are provided, on a carrier, an application element for the mounting tape and a receiving element for the roll for unwinding the mounting tape, it being the case that the application element has, on at least one side, an application edge with such a radius that the adhesive mounting tape, which is fed without the free adhesive surface coming into contact with anything, can be fixed adhesively right into inner corners.Type: GrantFiled: June 12, 1998Date of Patent: February 29, 2000Assignee: Silu Verwaltung AGInventors: Reto Sieber, Marco Sieber
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Patent number: 6029730Abstract: The present invention provides a hot shear fixture for effectively and efficiently separating components of a device package for low yield analysis. More specifically, the hot shear fixture provides a cavity for receiving the desired device package and a shearing plate. Depending on the thermal properties of the package materials, the fixture, device package and shear plate are heated for a predetermined time before the shear plate is advanced to separate the desired components of the inserted device package.Type: GrantFiled: December 30, 1997Date of Patent: February 29, 2000Assignee: Intel CorporationInventors: Stephen Bradford Gospe, George Chiu
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Patent number: 6029731Abstract: This facing surround assembly is provided which can be installed without fabrication in the field by a single person with average hand tool skills. The facing surround is generally made of non-combustible material and is generally used in conjunction with a fireplace or other wood/gas burning appliance. The invention consists of two corner members, one or more horizontal headers, zero or more corner miters, and two vertical support members positioned. Any particular configuration of the facing can accommodate range of openings.Type: GrantFiled: January 13, 1998Date of Patent: February 29, 2000Inventor: David O. Brazell
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Patent number: 6029732Abstract: A retractable awning assembly for mounting to a wall having a relatively thin outer skin such as the side wall of a recreational vehicle includes a rail attached to the wall and having a longitudinally extending channel which is C-shaped in cross-section, a roller, a flexible canopy having an inner edge connected to the channel and an outer edge secured to the roller, a pair of upper mounting brackets attached at opposite ends of the rail, and a pair of arm assemblies supporting opposite ends of the roller and operable to move said roller between a retracted position adjacent the wall and an extended position spaced from the wall. Each of the arm assemblies has a support arm with a lower end secured to the wall and a rafter arm with an inner end attached to the upper mounting bracket.Type: GrantFiled: July 7, 1998Date of Patent: February 29, 2000Assignee: White Consolidated Industries, Inc.Inventor: Dale G. Malott
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Patent number: 6029733Abstract: A retractable arced window covering for arced windows. The invention is a pleated fan covering for arced windows which can be remotely operated by a pull cord for opening and closing the covering. The arced window covering includes a base which hides the retracted covering, a first arced track extending from the base, and a foldable pleated member which is suspended from the tract on a rigid member having a hook-shaped upper end mounted on the arced track, the rigid member being either one-piece or having telescoping upper and lower sections, and can be drawn along the track using a cord. The present invention has a second embodiment in which there are two foldable pleated members that can be drawn along the track in opposite directions either independently or in unison from a horizontal retracted position to an expanded position such that the pleated members meet at the apex of the arced window.Type: GrantFiled: August 7, 1998Date of Patent: February 29, 2000Inventor: Suli Xue
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Patent number: 6029734Abstract: A slat-lifting mechanism of the Venetian blind is composed of a slat set, a pull set, a slat pull cord, and a locating set. The slat set has a plurality of slats. The pull set has a pull cord member and a spring retrieving unit which is linked with the pull cord member. The slat pull cord has one end that is put through the slat set, and other end that is fastened with the pull set. The locating set is disposed in the traveling path of the slat pull cord and is capable of bringing about a friction resistance which is greater than a retrievable pull force of the spring retrieving unit for overcoming the pulling force of the slat pull cord, so as to control the pulling or the releasing of the slat pull cord. The slat set can be thus located by the locating set.Type: GrantFiled: January 4, 1999Date of Patent: February 29, 2000Assignees: Industrial Technology Research Institute, Nien Made Enterprise Co., Ltd.Inventors: Wei-Cheng Wang, Ray-Ten Chen, Ya-Wei Hsu
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Patent number: 6029735Abstract: A clutch mechanism adapted to facilitate disengageable manual operation of a roller door or shutter comprising a chain pulley wheel journalled for rotation about the axis of a first shaft permanently engaged with or common with the main shaft about which the door or shutter is stored but not constrained to rotate with the first shaft at times when such shaft is driven other than manually; a clutch disc journalled alongside the chain pulley wheel on the same axis and similarly free to rotate independently of the first shaft; a linking pin on the chain pulley wheel between the chain pulley wheel and the clutch disc to link the chain pulley wheel to the clutch disc such that rotation of one causes rotation of the other about their common axis; biasing springs on the clutch disc constraining the free end of the linking pin to bias the linking pin into an equilibrium linked position; the biasing springs being sufficiently weak that a light tug on the chain about the chain pulley wheel will allow limited relative rType: GrantFiled: December 17, 1998Date of Patent: February 29, 2000Inventor: Scott Nicholson
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Patent number: 6029736Abstract: A reinforced core for use in metal casting processes, especially directional solidification casting processes, comprises an elongated, thin-walled outer quartz or silica rich tubular member and a carbon base reinforcement disposed in and extending along a length of the tubular member. The carbon base reinforcement can comprise one or more graphite rods cemented together in end-to-end relation or a carbon fiber bundle. The carbon base reinforcement can include an outer carbide surface region by coating or surface reaction.Type: GrantFiled: August 29, 1997Date of Patent: February 29, 2000Assignee: Howmet Research CorporationInventors: Rajeev V. Naik, John Corrigan