With Seal Patents (Class 137/384)
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Patent number: 11549609Abstract: Brackets including a plate having a first, a second, and a third opening, and a channel extending from the plate. The channel has a first and a second end, the first end defining a fourth opening for receiving a handle into the channel. The first opening is positioned over the channel such that when a handle is fully inserted into the channel the opening in the handle would be accessible through the first opening of the plate. The second opening is positioned over the channel such that when the handle is inserted into the channel and a connecting pin is inserted into the second opening and the handle, the handle becomes connected to the bracket. The third opening is positioned to align with the at least one hole in a mounting plate of an oil container valve when the handle is coupled to the stud of the oil container valve.Type: GrantFiled: May 12, 2021Date of Patent: January 10, 2023Inventor: Alan McDowell
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Patent number: 11486514Abstract: A valve assembly including a valve body with an inlet port and an outlet port, a flow passage and a valve element disposed within the flow passage, an actuator and a lockout mechanism configured to maintain the position of the valve assembly in an opened position or a closed position. The lockout mechanism can include at least one screw.Type: GrantFiled: September 11, 2020Date of Patent: November 1, 2022Assignee: GE Aviation Systems LLCInventors: Jerry Dean Hielkema, Kevin P. Hallisey, Rachael Huffman, Derek Dipietro, Julian Alexander Opificius
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Patent number: 10690252Abstract: Exemplary embodiments are directed to butterfly valves, generally including a body assembly and a locking cap. The body assembly generally includes a body, a disc rotationally disposed inside an opening of the body, a cog, and a stem passing through the disc and the body. The locking cap generally engages the cog to prevent rotation of the disc and the stem relative to the body. Methods of assembling and positioning a butterfly valve are also provided.Type: GrantFiled: December 8, 2016Date of Patent: June 23, 2020Assignee: Hayward Industries, Inc.Inventors: Paul M. Gutmann, Joshua Lee Hoots, Gary A. Moren, Jon Terrence Stone
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Patent number: 9879794Abstract: A valve for use in a coolant flow. The valve comprises a valve housing with an inlet and at least one outlet, a valve body which is rotatably received by the valve housing, an actuator for rotating the valve body, and a fail-safe mechanism which can be pretensioned rotationally. The valve body is in rotational engagement with an axially moveable coupling element, via which the valve body is releasably connected indirectly to the actuator shaft. In the event of a fault, the valve body can be decoupled from the actuator shaft by an axial movement of the coupling element. The axial movement of the coupling element also causes the fail-safe mechanism to come into rotational engagement with the coupling element in order to rotate the valve body to a predefined fail-safe position.Type: GrantFiled: June 25, 2014Date of Patent: January 30, 2018Assignee: MAGNA POWERTRAIN GMBH & CO KGInventors: Friedrich Atschreiter, Hannes Hofstetter, Markus Oberladstätter, Andreas Auinger, Gerd Schlager
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Patent number: 9217514Abstract: A lock-out bracket secures the position of a shaft extending through a pneumatic actuator, the shaft having a first end and a second end, the first end being operative for controlling a valve, the second end being coupled to a limit switch mounted on a limit switch bracket mounted to the actuator. The lock-out bracket includes a substantially flat base plate and a substantially flat lock-out tab substantially perpendicular to the base plate, the base plate defining an opening configured for matingly fitting over, receiving, and engaging the second end of the shaft. The lock-out tab defines a first hole adapted for alignment with a corresponding second hole defined on the limit switch bracket for facilitating the insertion of a lock shackle through the first hole and the second hole to secure the lock-out bracket relative to the actuator and prevent movement of the shaft and valve coupled to the shaft.Type: GrantFiled: August 19, 2014Date of Patent: December 22, 2015Inventor: Bryce M. Bagby
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Patent number: 9068670Abstract: A valve comprising a valve body having an inlet and an outlet; a valve member moveable in a linear direction with respect to the valve body between a closed condition in which flow between the inlet and the outlet is restricted and an open condition; and an actuator coupled to the valve member such that the valve member is constrained to rotate with the actuator and is movable in the linear direction with respect to the actuator, wherein the valve is configured such that rotation of the actuator causes the valve member to move in the linear direction with respect to both the actuator and the valve body between the closed condition and the open condition.Type: GrantFiled: September 25, 2012Date of Patent: June 30, 2015Assignee: LEAFIELD MARINE LIMITEDInventors: David Louis Dickins, Stephen David Horn
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Publication number: 20140174560Abstract: A rotary seal system is disclosed for an air circulating system. The rotary seal system includes a rotary shell having one or more air circulation chambers. The system includes a plurality of stationary, flexible seal bodies arranged in an angled fashion operatively coupled about opposing circumferential edges of the rotor shell to maintain separation between the one or more air circulation chambers. In one embodiment, a helical ramp disposed in at least one of the plurality of stationary, flexible seal bodies provides internal realignment of the flexible seal bodies.Type: ApplicationFiled: December 20, 2012Publication date: June 26, 2014Inventor: NATHAN HASTINGS
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Patent number: 8727311Abstract: The invention relates to a vacuum valve for interrupting, releasing or controlling a flowing medium in the interior (3) of the vacuum valve (1). A shaft (6) coupled to a valve drive (5) is routed gas-tight from the atmospheric area (4) to the interior (3) through a valve housing (2) by way of a sealing shaft penetration (20) so that a movement produced by the valve drive (5) can be transferred from the atmospheric area (4) to the interior (3) for the purposes of interrupting, releasing or controlling the flow.Type: GrantFiled: August 27, 2009Date of Patent: May 20, 2014Assignee: Vat Holding AGInventor: Florian Ehrne
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Patent number: 8528587Abstract: A manifold includes first and second plates secured together at an inner face of each plate. A plurality of chambers and passages are in the inner faces of the plates and at least one port on an outer face of each plate connected to one of the chambers and passages. A crossover element in the inner face of the first plate separates a chamber or passage in the first plate from a chamber or passage in the second plate in the crossover area where the chambers or passages cross.Type: GrantFiled: September 23, 2009Date of Patent: September 10, 2013Assignee: New York Air Brake CorporationInventors: Bucky J. Bordeau, Eric Wright, John M. Reynolds
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Publication number: 20120160866Abstract: A vacuum loader for providing granular resin material to resin material processing equipment has a loader housing, a vacuum motor, a dust filter, an air blast generator, a dump flap, and a pivoting manually releasable latch for retaining the lateral web and the loader from tilting rotation of the loader about the shaft and supporting the loader when placed in a tilted orientation; the latch being weighted to pivotally return to a web-retaining position when released by an operator.Type: ApplicationFiled: December 5, 2011Publication date: June 28, 2012Inventor: Stephen B. MAGUIRE
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Publication number: 20120145260Abstract: A biotip according to an embodiment of the invention moves a reaction mixture along a longitudinal direction under the force of gravity. The biotip includes a chamber formed of a transparent material and filled with a liquid having a smaller specific gravity than the reaction mixture and immiscible with the reaction mixture, and a seal that seals the chamber. The liquid has a volume resistivity of greater than 0 ?·cm and 5×1013 ?·cm or less.Type: ApplicationFiled: December 13, 2011Publication date: June 14, 2012Applicant: SEIKO EPSON CORPORATIONInventor: Hiroshi KOEDA
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Patent number: 7721755Abstract: A valve assembly to dispense fluid from fluid containers including a member that is rotatably slideable in a tube between open and closed positions. The valve assembly utilizes sealing beads to provide seals so that fluid cannot be dispensed from the assembly when the assembly is in the closed position. The valve assembly also includes a tamper evident indicator to show a user whether or not the valve assembly has been previously actuated. The tamper evident indicator may include a tab that is broken when the valve assembly is first actuated. The tamper evident indicator may also include a skirt that either detaches from a knob or fractures when the valve assembly is first actuated.Type: GrantFiled: January 26, 2005Date of Patent: May 25, 2010Assignee: DS Smith Plastics LimitedInventors: Mark A. Smith, James Richards
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Publication number: 20100096026Abstract: The present invention provides an intake pipe for drinking water taps, including a metal screwed conduit and a plastic inner pipe. The metal screwed conduit has screw threads configured on its periphery, and a through pipe hole inside. The plastic inner pipe is placed in the through pipe hole. On top of the plastic inner pipe, there is an expanded ring to be held tightly against the top end of the metal screwed conduit. The bottom end of the plastic inner pipe extends to the bottom of the metal screwed conduit. An O-ring seal is placed between the metal screwed conduit and the plastic inner pipe. The O-ring seal can be configured between the top end of the metal screwed conduit and the expanded ring of the plastic inner pipe, or between the through pipe hole of the metal screwed conduit and the outside wall of the plastic inner pipe.Type: ApplicationFiled: October 18, 2008Publication date: April 22, 2010Inventors: Jui-Chien CHEN, Jui-Ching Chen
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Patent number: 7588050Abstract: A cap permanently indicates the occurrence of tampering with a gas service valve. A substantially square base has intersecting slots differently sized to confine correspondingly sized valve cocks against rotational motion. A dome on the base covers the slots and the valve cock. Two ties of adjustable length secure the base against the valve body. The base, dome and ties are of material which is permanently altered by application of force to disorient the mounted cap sufficiently to permit operation of the valve cock. Removal of excess portions of the ties makes reuse difficult, if not impossible. The dome may be transparent so that the orientation of the valve cock can be observed without removing the cap from the valve. Markings on the dome indicate the orientation of the valve cock when the cap was installed.Type: GrantFiled: September 30, 2005Date of Patent: September 15, 2009Inventor: Jim L. Russell
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Patent number: 7007712Abstract: A pneumatic tool lock integral to the structure of a pneumatic tool and adapted to replace the existing male nipple component of the pneumatic tool is provided. The pneumatic tool lock includes an outer housing adapted to provide access to inner components of the pneumatic tool lock, the outer housing having a first end for securely mating with the pneumatic tool and a second end for coupling with a fluid source. An inner passageway within the outer housing provides a means for fluid to flow through from the fluid source to the pneumatic tool. A key operated lock mounted on the outer housing is displaceable between a first open position and a second closed position. A needle valve attached to the key operated lock disengageably mates with a channel extending between the inner passageway and the outer housing so as to block and un-block fluid flow into the inner passageway.Type: GrantFiled: May 10, 2005Date of Patent: March 7, 2006Inventor: Gary Anderson
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Patent number: 6918402Abstract: The present invention provides a flow control apparatus and method. In accordance with the present invention, the flow control apparatus comprises a thermostat that automatically actuates valve to enable water to flow through the valve when the temperature of the air or water is at or near the freezing temperature of water (32° F.). When the temperature of the air or water rises above freezing, the thermostat causes the valve to close, thereby preventing water from flowing through the valve. Therefore, when the apparatus is coupled to an end of a water conduit, such as a water spigot or hose, water is allowed to flow through the conduit when the air or water temperature is at or near freezing to prevent the conduit from bursting due to water freezing and expanding within the conduit.Type: GrantFiled: January 20, 2004Date of Patent: July 19, 2005Inventor: Bruce Harvey
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Patent number: 6863083Abstract: A valve is disclosed for dispensing a flowable material. The valve has a first chamber (40) at a first pressure wherein said first chamber (40) defines an outlet (28) in communication with said first chamber (40). A second chamber (42) is at a second pressure. The valve has a stop (18) indexed against a third pressure, operating to selectively place the first chamber (40) into communication with the second chamber (42). The stop (18) is operative to connect the second chamber (42) to said first chamber (40) when the first pressure is less than the third pressure.Type: GrantFiled: February 26, 2003Date of Patent: March 8, 2005Assignee: Baxter International Inc.Inventors: Hal C. Danby, Mark E. Williamson, Julian F. R. Swan
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Publication number: 20030015238Abstract: A pressure regulator having a first orifice that permits a flow of liquid and maintains a back pressure in the supply line, and a second orifice that provides a second, greater flow of fluid responsive to a pressure increase in the inlet line.Type: ApplicationFiled: June 18, 2002Publication date: January 23, 2003Inventor: Thomas B. Martin
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Patent number: 6422029Abstract: A security kit and method for protecting refrigerant systems is provided with a seal member for each service port of an air conditioning system. The kit may also include a validation record for recording identifying indicia from each of the seal members. The seal members are heat shrinkable plastic sleeves adapted to be secured on service ports and heated to shrink around and conform to the service port, substantially interfering with the use of the service port. The seal member is not removable without perceptible alteration. A kit can be provided with seal members for one or more service ports, and a locking ring for further securing the seal member to the service ports, particularly when the service ports have smooth exterior surfaces.Type: GrantFiled: March 21, 2000Date of Patent: July 23, 2002Inventor: Gregory J. Boitnott
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Publication number: 20020084591Abstract: An axis seal device is provided between a vessel filled with a first gas of a first gas pressure and a rotation axis passing through the vessel. The axis seal device includes first to third dry gas seal sections. The first dry gas seal section is provided such that the rotation axis is rotatable, and has a first space section with a second gas pressure. The second dry gas seal section is provided subsequently to the first dry gas seal section such that the rotation axis is rotatable, and has a second space section with a third gas pressure. The third dry gas seal section is provided subsequently to the second dry gas seal section such that the rotation axis is rotatable, and has a third space section with a fourth gas pressure. The first gas pressure is lower than the second gas pressure, the second gas pressure is higher than the third gas pressure, the third gas pressure is higher than the fourth gas pressure and an atmospheric pressure, and the fourth gas pressure is lower than the atmospheric pressure.Type: ApplicationFiled: December 31, 2001Publication date: July 4, 2002Inventors: Itsuo Akazawa, Akira Hiromoto, Takanori Tsutsumi, Kazuhiko Maekawa
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Patent number: 6164318Abstract: A valve locking system for safely and economically locking out control valves. The valve locking system includes a valve locking assembly for preventing manipulation of a valve including a rotating handle. The handle includes at least one aperture extending through the handle. The assembly includes a brace designed for coupling around a neck of the valve such that the brace is prevented from rotating around the neck of the valve. A cable includes a first end loop and a second end loop. The first end loop is coupled to the brace. The second end of the cable is insertable through the aperture in the handle. A locking member for coupling the first end loop to the second end loop such that the cable ties the handle to the brace whereby the handle is prevented from being rotated.Type: GrantFiled: December 3, 1999Date of Patent: December 26, 2000Inventor: Kenneth Dixon
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Patent number: 6053005Abstract: A security kit and method for protecting refrigerant systems is provided with a seal member for each service port of an air conditioning system. The kit may also include a validation record for recording identifying indicia from each of the seal members. The seal members are heat shrinkable plastic sleeves adapted to be secured on service ports and heated to shrink around and conform to the service port, substantially interfering with the use of the service port. The seal member is not removable without perceptible alteration. A kit can be provided with seal members for one or more service ports.Type: GrantFiled: February 12, 1999Date of Patent: April 25, 2000Inventor: Gregory J. Boitnott
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Patent number: 6003714Abstract: A compressed gas cylinder safety cap and valve seal retainer comprising a cap having a floor, a wall and a stem, the wall extending perpendicularly from and circumferentially around the floor, the stem extending perpendicularly from the floor at the central axis of the floor; a second strap connected at its proximal end to the cap, the second strap having a pair of bendable areas, a tear tab and perforations, a second strap angled portion attached at its proximal end to the second strap and at its distal end to a clasp tab, the clasp tab having a double ridged portion extending perpendicularly away from the clasp tab, the double ridged portion having a first set of ridges and a second set of ridges offset from the first set of ridges; a first strap, the first strap being connected at its proximal end to the cap, the first strap having at its distal end a clasp receptacle, the clasp receptacle having a hollow interior, the hollow interior having mounted therein on an interior surface a series of ridges and onType: GrantFiled: August 11, 1998Date of Patent: December 21, 1999Inventor: Henry Buermann
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Patent number: 5533891Abstract: An automatic locking pressure regulator or valve for a fuel tank. The regulator or valve includes locking means which prevent loosening of the regulator or valve from a standard fuel cylinder valve outlet connection. In a preferred embodiment of the present invention, the locking mechanism is coupled to the base of the regulator or valve, and protrudes into the threads on the standard fitting on the fuel cylinder to prevent one-way rotation of the pressure regulator or valve.Type: GrantFiled: January 11, 1995Date of Patent: July 9, 1996Assignee: Uniweld Products, Inc.Inventors: David S. Pearl, II, Frank G. Smith
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Patent number: 5241982Abstract: A tamper-evident cap structure cooperates with a one-way, anti-disconnect strap so that the cap can be screwed onto or secured to the service port of an air-conditioning system, and the anti-disconnect strap can be then looped around both the cap and the refrigerant flow pipe supporting the service port. The anti-disconnect strap can form a permanent part of the cap, or it can be removably secured to the cap; in either case unauthorized entry is indicated by the need to break or sever the strap. Also provided with the anti-disconnect strap is an identity tag upon which the identity of the service organization and date of service can be recorded when a new cap-and-strap assembly is used.Type: GrantFiled: July 20, 1992Date of Patent: September 7, 1993Inventor: David W. Taylor
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Patent number: 5203477Abstract: The invention relates to a closure unit for a container suited to filling and dispensing a beverage stored under a pressuring gas. The closure unit comprises a bush from which is disposed a tubular element mounting two concentric valves and a siphon tube which extends into the container. The bush is locked into place in the neck of the container by a threaded locking sleeve which sandwiches a deformable ring between it and the bush. The ring and locking sleeve have respective intermeshing saw toothed profiles which allow locking to occur. This prohibits gas flow from the container between the neck and the bush. Upon unlocking, the profile in the ring becomes fractured thereby depressuring the container.Type: GrantFiled: July 1, 1991Date of Patent: April 20, 1993Assignee: Yin Seng LimInventor: Sin W. Lo
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Patent number: 4935041Abstract: An apparatus for the collection of volatiles includes a housing that forms an environmental chamber. Dishes of test sample are placed in this chamber which is closed with a transparent cover. A gasket assures an airtight seal between the cover and the housing. The housing is supported on a stand that allows the angular orientation of the housing to be adjusted relative to the path of the sun. A jacket is also formed in the housing about the environment chamber. A heat exchange fluid is circulated through this jacket to maintain the environmental chamber and, thus, the test sample within a desired temperature range. Volatiles emitted by the test sample are collected by circulating air through the environmental chamber. This air which passes across the test sample dishes serves to sweep up the volatiles which are then delivered to a collection trap for qualitative and quantitative analysis.Type: GrantFiled: October 4, 1989Date of Patent: June 19, 1990Assignee: Pharmacology & Toxicology Research Lab.Inventors: Lowell J. Lawrence, Abbe L. Kesterson, Steven B. Jackson, Luis O. Ruzo, Terry L. Johnson
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Patent number: 4889160Abstract: A two-way tamper-proof vent arrangement especially constructed for food grade receptacles and tanks is disclosed. The vent arrangement includes inner and outer stainless steel inverted cup members which are nested together and are concentrically mounted on a bracket over a tubular vent opening in the receptacle or tank. The outer cup member has a lower circumferential edge which bears on the surface of the receptacle or tank surrounding the vent opening so that tubes or other instruments cannot gain access to the vent opening. The inner cup member has a lower circumferential edge spaced from the surface of the receptacle surrounding the vent opening. The outer cup member is provided with a plurality of small openings to permit the inflow and outflow of venting air along a labyrinth path formed by the inner and outer cup members between the exterior of the outer cup member and the vent opening.Type: GrantFiled: December 28, 1988Date of Patent: December 26, 1989Inventor: Johnny S. Sheets
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Patent number: 4860786Abstract: The combination of a fluid conductive pipe line and an in-line valve adapted to open and close the fluid passage in said line, said valve having an external handle operatively connected to open and close the valve, said handle having an enlarged free end forming a foot pedal and being positioned such that the handle can be pivotally rotated to close said valve by foot or other pressure on said foot pedal.Type: GrantFiled: September 3, 1987Date of Patent: August 29, 1989Inventor: Stephen L. Pollard
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Patent number: 4818469Abstract: The seal for turning valve bodies, in particular for valves in radioactive lants, is composed of a molded element of flexible graphite which is coated with a thin, flexible tantalum layer. The tantalum enclosure surrounds the graphite molded element, preferably all around. The tantalum layer is sufficiently thin so that it remains flexible.Type: GrantFiled: October 27, 1986Date of Patent: April 4, 1989Assignee: Deutsche Gesellschaft fur Wiederaufarbeitung von Kernbrennstoffen mbHInventor: Helmuth Supik
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Patent number: 4705064Abstract: A safety seal for an operating lever utilizing a cap which is capable of covering at least one end of the lever pin extending to one side of the lever. The cap is connected to the other side of the lever pin by a tether. The cap and tether are reuseable as a seal.Type: GrantFiled: August 12, 1986Date of Patent: November 10, 1987Inventor: Freddy Self
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Patent number: 4684492Abstract: A repair fixture for water-cooled nuclear reactors including an openable reactor pressure vessel having a wall, and conduits passing through the pressure vessel wall for flooding the pressure vessel, includes a sealing box disposed in the opened, flooded pressure vessel, a device connected to the sealing box for pressing the sealing box liquid-tightly against the pressure vessel wall enclosing at least some of the conduits, and a device connected to the sealing box for evacuating the conduits enclosed by the sealing box.Type: GrantFiled: May 17, 1985Date of Patent: August 4, 1987Assignee: Kraftwerk Union AktiengesellschaftInventors: Rainer Kunz, Jakob Stauner, Robert Weber
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Patent number: 4503880Abstract: A lockout device for a consumer gas supply includes a swivel pipe having an intermediate angulated section having a swivel connector at one end and a threaded connection at the opposite end. The swivel pipe is connected to the gas meter. An expandable plug unit includes a rubber plug with hardened washers abutting the opposite ends. A nut is fixedly attached to one washer and an expanding bolt of a hardened metal extends through washers and plugs with a threaded connection to the nut. The head has a screw driver slot which permits rotating the bolt only to expand the plug. The washers and bolt are formed of a case hardened steel so as to require special shop drill to destroy plug unit for removal and reopening the swivel pipe.Type: GrantFiled: July 6, 1982Date of Patent: March 12, 1985Assignee: Wisconsin Gas CompanyInventor: Sherman W. Hochman
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Patent number: 4331616Abstract: An adjusting screw of a carburetor comprising a threaded portion, an enlarged head portion and a reduced diameter portion located therebetween. A thin hollow cylindrical wall is formed on a link lever of the carburetor. After the adjusting screw is screwed into the threaded hole of the hollow cylindrical wall, the reduced diameter portion of the adjusting screw is cut. Then, the top portion of the hollow cylindrical wall is bent inward for irremovably fixing the adjusting screw onto the link lever.Type: GrantFiled: December 17, 1980Date of Patent: May 25, 1982Assignees: Toyota Jidosha Kogyo Kabushiki Kaisha, Aisan Industry Co., Ltd.Inventors: Yuzo Kato, Mikitoshi Kako, Kunio Kadowaki
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Patent number: 4317784Abstract: An adjust screw device for use with a carburetor of an internal combustion engine having stops for restricting the range within which the automobile user can readjust the idle R.P.M. by adjusting the adjust screw at the carburetor. The adjust screw device is composed majorly of a first adjust screw having a large adjustable range and a second adjust screw for fine adjustment, the physical position of the second adjust screw being changed by the adjustment of the first adjust screw. After initial adjustment of the first adjust screw by the manufacturer, further adjustment of the screw is completely blocked and the second adjust screw is then adjustable by the user only over a predetermined range.Type: GrantFiled: December 5, 1980Date of Patent: March 2, 1982Assignees: Toyota Jidosha Kogyo Kabushiki Kaisha, Aisan Kogyo Kabushiki KaishaInventors: Yuzo Kato, Hidenori Tateno, Mikitoshi Kako
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Patent number: 4308220Abstract: A construction for protecting a member, such as an adjusting screw or fixing bolt, fitted to a base, from being tampered with, including a wall formed generally in the shape of a hollow tube, attached by one of its ends to the base, and surrounding the member to be protected, and a plug inserted into the other end of the wall so as to be wedged into it, with a slot being formed in the wall, extending along the axial direction of the wall from the end of the wall remote from the base, to a slot bottom at an axial position between the free end of the wall and the base, the slot bottom being closer to the base than is the part of the plug which is closest to the base, so that a gap is left between the bottom of the slot and the bottom wall of the plug for a removing tool to be inserted to lever the plug out of the end of the wall.Type: GrantFiled: June 13, 1980Date of Patent: December 29, 1981Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventor: Hidenori Tateno
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Patent number: 4292994Abstract: Electro-mechanical, milk transfer systems which interlock the dairy farmer's milk holding tank agitator and the pump for drawing milk from the tank into a milk transport vehicle to preclude energization of the pump until the agitator has operated for a minimum, predetermined time; tamper proof circumvention-preventing devices to preclude by-pass of the interlock systems during milk transfer to the transport vehicle; and milk sample-taking units for automatically taking one or more samples of the milk being pumped into the transport vehicle.Type: GrantFiled: February 25, 1980Date of Patent: October 6, 1981Inventors: Julius T. Johnson, Robert R. Johnson
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Patent number: 4246929Abstract: A fuel metering apparatus, for supplying metered fuel to an associated combustion engine, has an idle fuel metering and supply system comprising adjustable valving means which, in turn, comprises a discharge orifice means and cooperating valving member which is adjustably selectively positioned with respect to such orifice means in order to thereby establish a desired metered rate of fuel flow through the thusly determined effective flow area of the orifice means for a particular pressure differential thereacross; the adjustable valving member is generally contained within a cooperating body member or portion and access to the valving member, subsequent to it being selectively positioned, is prevented by closure members placed in position after the said selective positioning of said valving member.Type: GrantFiled: February 13, 1978Date of Patent: January 27, 1981Assignee: Colt Industries Operating CorpInventor: Russell J. Wakeman
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Patent number: 4239710Abstract: A device for checking random adjustment of the adjustable parts of a carburetor comprising a locked cover or covers mounted over the adjusting screw heads on the adjustable parts so that the cover or covers can not be removed without breaking it. Thus, the device is intended to inhibit the user or "layman" from improperly adjusting the adjustable parts of the carburetor. Provision of the cover or covers is also helpful in preventing the screws from becoming loose under vibration or other external forces.Type: GrantFiled: February 21, 1979Date of Patent: December 16, 1980Assignee: Aisan Industry Co., Ltd.Inventor: Motoki Sato
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Patent number: 4234523Abstract: An adjustment prevention mechanism comprises a stationary covering member disposed opposite to a head of an adjusting screw for adjusting fuel flowing in a slow speed fuel passage in idling of an engine, and a cap-shaped plug. The stationary covering member is secured to something within an engine room, for example a suction pipe of the engine, and has a hole through which the adjusting screw is adjusted. The cap-shaped plug is inserted rigidly in the hole to blockage the hole after the adjusting screw was adjusted, so that the adjusting screw can not be readjusted by usual users after the engine is transferred to the users.Type: GrantFiled: January 11, 1979Date of Patent: November 18, 1980Assignee: Hitachi, Ltd.Inventors: Keiichi Onuki, Tohru Nakagawa, Shigeyuki Kenma
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Patent number: 4234524Abstract: A mixture adjusting screw in a carburetor for regulating the fuel efflux during engine idling is provided in which the end needle portion of the screw is located in the idle port of the carburetor and a spring is loaded around the rod portion of the screw to hold the screw in position after adjustment so as to maintain its proper adjustment. The screw head is covered by a plug and it is specifically shaped to inhibit easy access of the user to the screw for adjustment purposes. The air and fuel mixture formed in the low-load fuel system in the carburetor is well stirred due to the presence of the spring which is exposed to a fuel passage and is formed into an emulsion flow, allowing stabilized rotation of the engine during idling and high performance thereof in normal running.Type: GrantFiled: April 26, 1979Date of Patent: November 18, 1980Assignee: Aisan Industry Co., Ltd.Inventor: Hisaharu Arai
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Patent number: 4120918Abstract: A fuel metering apparatus, for supplying metered fuel to an associated combustion engine, has an idle fuel metering and supply system comprising adjustable valving means which, in turn, comprises a discharge orifice means and cooperating valving member which is adjustably selectively positioned with respect to such orifice means in order to thereby establish a desired metered rate of fuel flow through the thusly determined effective flow area of the orifice means for a particular pressure differential thereacross; the adjustable valving member is generally contained within a cooperating body member or portion and access to the valving member, subsequent to it being selectively positioned, is prevented by closure members placed in position after the said selective positioning of said valving member.Type: GrantFiled: May 16, 1977Date of Patent: October 17, 1978Assignee: Colt Industries Operating Corp.Inventor: Daryl O. Codling
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Patent number: 4024740Abstract: Locking hood assembly for mounting on a gas service head valve of the lubricated plug type to prevent unauthorized opening of the valve. Locking hood assembly comprises a generally cylindrical main body or hood which covers the valve stem and stop collar when it is mounted on the valve thus preventing valve operation, the hood being attached to the valve using the removable buttonhead grease fitting which is conventionally an element of the valve itself. Assembly further comprises a cover cap which conceals the grease fitting after the hood is mounted on the valve; and a barrel lock which locks the cover cap to the main body or hood. The main body further has an enlarged, generally oval-shaped, peripherally extending skirt portion which fits over the oval-shaped gland seal cover plate of the valve when the hood is in place and prevents access to the gland seal cover bolts and to the normal spacing between the gland seal cover and the valve housing.Type: GrantFiled: May 10, 1976Date of Patent: May 24, 1977Inventor: Bernard A. Di Giovanni
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Patent number: 3980099Abstract: A valve guard to prevent deliberate tampering with or accidental movement of a rotatable valve handle comprising a connecting member for connection to the valve body and a locking member pivotally connected to the connecting member for movement toward and away from the valve handle. The locking member includes first abutment means engageable with the valve handle in an open-valve position to lock the valve handle in the open-valve position and second abutment means engageable with the valve handle in a closed-valve position to lock the valve handle in the closed-valve position.Type: GrantFiled: June 11, 1975Date of Patent: September 14, 1976Assignee: Custom Iron & Specialties, Inc.Inventor: Gurney V. Youngblood
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Patent number: RE31027Abstract: Locking hood assembly for mounting on a gas service head valve of the lubricated plug type to prevent unauthorized opening of the valve. Locking hood assembly comprises a generally cylindrical main body or hood which covers the valve stem and stop collar when it is mounted on the valve thus preventing valve operation, the hood being attached to the valve using the removable buttonhead grease fitting which is conventionally an element of the valve itself. Assembly further comprises a cover cap which conceals the grease fitting after the hood is mounted on the valve; and a barrel lock which locks the cover cap to the main body or hood. The main body further has an enlarged, generally oval-shaped, peripherally extending skirt portion which fits over the oval-shaped gland seal cover plate of the valve when the hood is in place and prevents access to the gland seal cover bolts and to the normal spacing between the gland seal cover and the valve housing.Type: GrantFiled: September 25, 1978Date of Patent: September 14, 1982Inventor: Bernard A. Di Giovanni