Patents Issued in August 24, 1976
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Patent number: RE28936Abstract: The disclosure relates to a cart or pick-up truck capable of transporting a load on level ground, hills and inclines and up stairways and the like wherein the operator thereof is capable of maintaining a constant erect position during operation, regardless of the contour of the terrain over which the cart is driven. The cart includes a frame having a rotatable upward handle portion, the handle portion being rotatable in a direction away from and toward the operator and having a stop when rotated in a direction toward the operator so that the rotatable portion of the handle is never rotated to the point where it is coaxial with the remaining portion of the frame. The cart also includes a pair of individually rotatable wheels, each wheel having a rotatable shaft whereby the wheels individually seek their own level, depending upon the terrain over which the cart is pulled or pushed.Type: GrantFiled: March 12, 1975Date of Patent: August 24, 1976Inventor: Rudolph Talamantez
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Patent number: RE28937Abstract: Control of polycaproamide degradation during vacuum polycondensation in a polymer finisher is achieved by maintaining a partial pressure of water above the polymer melt above about 10 mm. Hg, preferably above about 30 mm. Hg, absolute pressure. Degradation is minimized to within 3, preferably 2 units of the theoretical difference between carboxyl and amine ends. The water extractables content of the polymer is also controlled to below about 3.5% by weight, preferably 2.5%; viscosity increase of the polymer melt levels out after less than 4 hours to less than 10 FAV units per hour, by means of the invention.Type: GrantFiled: June 19, 1974Date of Patent: August 24, 1976Assignee: Allied Chemical CorporationInventors: John Walter Wagner, John Christopher Haylock
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Patent number: RE28938Abstract: The reaction product of a cerium salt of an organic carboxylic acid which is soluble in an aromatic hydrocarbon or a chlorinated hydrocarbon solvent with an alkali metal siloxanolate having an average of at least three siloxane units per molecule is employed as a heat stability additive in silicone fluids and silicone elastomers.Type: GrantFiled: September 15, 1975Date of Patent: August 24, 1976Assignee: Toray Silicone Company, Ltd.Inventors: Yoshinobu Koda, Shosaku Sasaki, Yoshiyuki Koda
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Patent number: RE28939Abstract: .Iadd.Pharmaceutical compositions having muscle relaxant and analgesic activity containing 3-aminoindazoles..Iaddend.Type: GrantFiled: September 28, 1972Date of Patent: August 24, 1976Assignee: SmithKline CorporationInventors: John J. Lafferty, David H. Tedeschi, Charles L. Zirkle
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Patent number: RE28940Abstract: The apparatus extracts samples of a fluid stream containing colloidal suspended solids at a detection station wherein the electrophoretic mobility (EM) of the colloidal suspended solids is determined. The detection station automatically measures the EM and provides such data to a computer, which computes the Zeta Potential. The computer also receives other information relating to the characteristics of the colloidal suspended solids, such as temperature, the percent of solids, and the flow rate of the fluid system. The computer is programmed to interpret the input data and to provide corrective signals to processing apparatus which automatically adjust and control the additives fed into the fluid stream to achieve automatic flocculation correction so that the agglomeration of the colloidal suspended solids in the fluid stream is optimized.Type: GrantFiled: March 8, 1974Date of Patent: August 24, 1976Assignee: Komline-Sanderson Engineering CorporationInventors: Thomas R. Komline, Sr., deceased, Walter R. Wills
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Patent number: RE28941Abstract: An electrolytic timer capsule is constructed of an outer cylindrical closed end case and an inner insulated upside down cup enclosing an electrolyte solution. The case comprises one electrode and the other is a U-shaped wire with an intermediate thin coined section immersed in the electrolyte solution.Type: GrantFiled: April 20, 1973Date of Patent: August 24, 1976Assignee: Air Products and Chemicals, Inc.Inventor: John Paul Jones, Jr.
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Patent number: RE28942Abstract: First and second output voltages are generated respectively in accordance with the logarithm of the intensity of light and as a function of a manually set exposure condition. A control signal to initiate shutter closing is generated when a signal which changes in proportion to the logarithm of an elapsed time period initiated by shutter release operation plus the second output voltage is substantially equal to the first output voltage. The control device includes a circuit for comparing the voltages. The device may be modified to generate a third output voltage which changes in response to the change of the signal and then comparing the first output voltage with the second plus the third output voltage.Type: GrantFiled: September 4, 1975Date of Patent: August 24, 1976Assignee: Minolta Camera Kabushiki KaishaInventors: Yasuhiro Nanba, Masayoshi Sahara, Kintaro Yada
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Patent number: 3975775Abstract: An examining glove at least one finger of which is inverted and has a rupturable seal to form a lubricant containing space. The arrangement is such so that when the glove is put on the seal is ruptured and the exterior of the glove finger is lubricated.Type: GrantFiled: July 9, 1973Date of Patent: August 24, 1976Inventor: Reese Fell Alsop
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Patent number: 3975776Abstract: Method for applying an elastic band around the cuff of an elastic glove which includes extruding a stripe of elastomeric material around the cuff of the glove while on a glove form and curing the stripe. A tray carrying a row of glove forms, each having a glove thereon, is stopped to position one of the forms at a band applying station. A mast having an extruder nozzle adjacent the cuff edge is moved circumferentially about the cuff in a generally elliptical path to avoid engagement with adjacent forms while allowing the forms to be closely spaced for economical manufacturing.Type: GrantFiled: January 31, 1975Date of Patent: August 24, 1976Assignee: Sherwood Medical Industries Inc.Inventor: Weldon R. Ayres
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Patent number: 3975777Abstract: The garment construction comprises a waistline arrangement for encircling a wearer's waist, at least one front garment panel having an upper edge thereof secured to a front portion of the waistline arrangement, and at least one rear garment panel having an upper edge thereof secured to a rear portion of the waistline arrangement. A first lateral joining arrangement is provided for joining the left lateral edges of said garment panels, together with a second lateral joining arrangement for joining the right lateral edges of the panels. At least one of the lateral joining arrangements is quick-detachable to provide a closable garment opening thereby. Juxtaposed to the quick-detachable lateral joining arrangement is a quick-detachable waistline joining arrangement for detachably joining the ends of the waistline area.Type: GrantFiled: December 19, 1974Date of Patent: August 24, 1976Inventor: Laura C. Roy
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Patent number: 3975778Abstract: A total ankle arthroplasty comprising a high-density polyethylene tibial unit having a concave surface forming a portion of a cylinder, a lower Vitallium talar unit having a convex bearing surface forming a portion of a sphere of a radius less than the radius of the concave surface of the tibial unit. The tibial unit has an upper portion provided with roughening, grooves and holes for improving the cementatious adherence between the tibial unit and the tibia. The talar unit has grooves and holes for also improving the cementatious adherence between the talar unit and the talus.Type: GrantFiled: July 14, 1975Date of Patent: August 24, 1976Inventor: St. Elmo Newton, III
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Patent number: 3975779Abstract: A lens suitable for implantation in the eye is provided with a supporting system which accommodates to normal function of a dynamic pupil. The supporting system includes flexible spring-like members structurally designed to follow a dilating and contracting pupil while providing longitudinal fixation and centration of the lens.Type: GrantFiled: June 16, 1975Date of Patent: August 24, 1976Assignee: American Optical CorporationInventors: William Richards, Bernard Grolman
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Patent number: 3975780Abstract: The sapce over a shower or tub enclosure, of the type made in one piece of fiber-reinforced plastic, is closed with a dome and a vertical wall extending from the rail, supporting sliding doors, to the ceiling. No finish is required in the end of the bathroom in which the bathing facility is installed and warm and moisture laden air is generally confined to the bathing facility. A bathroom exhaust air housing, connected to a fan and to a conduit to the outside of the building, is installed in the bathing facility above the rail and has grilles in said vertical wall and in the adjacent dome wall. Controls in the housing selectively exhaust air through the grilles directly from the bathroom or from the bathing facility.Type: GrantFiled: March 31, 1975Date of Patent: August 24, 1976Inventors: Duane C. Bowen, Troy L. Doan
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Patent number: 3975781Abstract: A fixture installation assembly adapted to be hung from support means secured to a surface member is disclosed. The assembly includes a pair of side panels, adapted to hang substantially vertically from the support means, having an attachment member near the lower end. The assembly also includes a bottom panel having an attachment member near each end thereof. One of the attachment members comprises latching means and the other comprises latch engagement means so that the bottom panel is supportively secured to the side panels for spacing the fixture a predetermined distance from the surface member.Type: GrantFiled: August 11, 1975Date of Patent: August 24, 1976Assignee: Powers-FIAT CorporationInventors: Morris Klimboff, Wilfred G. Harvey, Sr.
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Patent number: 3975782Abstract: A swimming pool construction employing a plurality of prefabricated wall panels for forming the sidewall of the pool, and a flexible liner attached to the sidewall and positioned over a floor of soil, such as sand. The liner attaches to the sidewall adjacent the lower end thereof so as to be totally disposed below the water level. The sidewall has a horizontal channel-like retaining member fixed adjacent the lower edge thereof, which retaining member opens outwardly for communication with the pool. The sidewall also has a narrow horizontally extending groove formed therein closely adjacent but spaced upwardly from the retaining member. The liner has a bead secured adjacent the free edge thereof, which bead is retained within the retaining member to maintain the liner in proper position when the pool is filled with water. The liner has a sheetlike flap which projects upwardly above the bead and has the edge thereof positioned within the groove.Type: GrantFiled: August 26, 1974Date of Patent: August 24, 1976Inventor: Jay A. Lankheet
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Patent number: 3975783Abstract: A furniture assembly such as a sofa bed which moves between a sitting configuration and a bed configuration including a metal support frame having end units with interconnecting beam members removably connected to the end units by bolts. A metal plate is secured to each end unit and includes a pair of slots inclined or slanted upwardly and forwardly from the rearward ends with U-shaped metal track members having flanges secured to the metal plates for defining laterally extending track surfaces. Inner and outer frames are pivotally connected together by an intermediate frame and are movable between a folded position and an unfolded position to define the bed configuration. The inner frame has bifurcated brackets secured thereto and shafts are connected to the bifurcated brackets and extend through the slots in the adjacent plates to support rollers which roll along the track members. The shafts have threaded nuts thereon and the shafts are the sole means for supporting the bed frames on the support frame.Type: GrantFiled: June 10, 1975Date of Patent: August 24, 1976Assignee: United States Steel CorporationInventor: William L. Pringle
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Patent number: 3975784Abstract: A marine structure having a buoyant tower flexibly connected to a base on the sea bed. The buoyant tower includes a buoyant tank which is movable in guide tracks extending lengthwise of the tower. The base may have drive tracks for moving along the sea bed so that material gathering, pipe laying or harbour construction operations on the sea bed can be carried out. For pollutants disposal the tower may receive waste, mix it with sea water and diffuse it into the sea.Type: GrantFiled: August 7, 1974Date of Patent: August 24, 1976Assignee: Marine Consultants Pty., Ltd.Inventor: Charles T. Whitaker
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Patent number: 3975785Abstract: An elongated cylindrical life preserver baton has a top which may be unscrewed and removed to free a flotation collar, which is simultaneously inflated by gas housed in a container within the bottom of the baton. When the baton top is removed, a spike housed in the neck of the baton pierces the frangible seal of the gas container.Type: GrantFiled: March 3, 1975Date of Patent: August 24, 1976Inventor: Carl Stadeker
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Patent number: 3975786Abstract: A high strength buckable rivet made of an alloy consisting of titanium and columbium, the optimum proportion being about 55% titanium and about 45% columbium. The method of making this rivet includes the steps of cold forming a cylindrical blank so as to form a head and shank of the rivet and cold working the head and a portion of a shank of the rivet so as to leave a ductile tail portion capable to form a buck tail, the optimum length of the ductile portion being about 0.8 times the diameter of the rivet shank.Type: GrantFiled: June 26, 1975Date of Patent: August 24, 1976Assignee: Textron, Inc.Inventors: Roland Howard Gapp, Rahmatollah Fakhri Toosky, Ira Bill Lee York
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Patent number: 3975787Abstract: A self-locking internally threaded fastener in which the self-locking characteristic is derived from a ring-like plastic patch having a circumferential extent of greater than 180.degree. adhered to the thread-defining surface of the fastener. A method for making the fastener includes seating a fastener upon a pin having a configuration which establishes a cavity between the pin and the fastener, placing an initial deposit of plastic powder in the cavity and then re-distributing the plastic powder, as by blowing, to form a ring-like deposit which can be heated until fused to establish the desired ring-like patch. An apparatus includes a pin having a seating shoulder and a frusto-conical tapered portion for receiving the fastener and establishing the cavity.Type: GrantFiled: December 5, 1975Date of Patent: August 24, 1976Assignee: Amerace CorporationInventor: Richard S. Newnom
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Patent number: 3975788Abstract: The invention described herein relates to a method of making a threaded nut fastener which joins with a threaded male or screw fastener wherein the threads of the nut are partially formed so as to provide for up to 80% thread-to-thread engagement of the screw threads with the nut threads.Type: GrantFiled: November 15, 1974Date of Patent: August 24, 1976Assignee: Litton Fastening SystemsInventor: Richard L. Reynolds
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Patent number: 3975789Abstract: Cleaning apparatus for removing foreign material from the front or oxide-covered surface of a magnetic recording tape. A sharp edged blade is mounted near a pad of open-cell reticulated foam material, and in close proximity to the front surface of a magnetic tape. A source of negative pressure is coupled to the region of the blade and cell and when actuated serves to draw the tape against the blade and foam material. Foreign material removed from the surface of the tape is embedded in the foam pad, and collected upon the blade. Air flow effected by the negative pressure area serves to transport some of the contaminants away from the region about the blade and foam pad.Type: GrantFiled: April 3, 1975Date of Patent: August 24, 1976Assignee: Storage Technology CorporationInventors: Howard L. Derby, August P. Epina, Dennis R. Olmsted, Sanford Platter, Zoltan L. Herger
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Patent number: 3975790Abstract: An ultraviolet lamp fixture used in combination with a conventional, commercial vacuum cleaner for the purpose of purifying the air within a room. The air, after being drawn into the vacuum cleaner and having the dirt particles removed, is exhausted into a U-shaped housing which is carried by the vacuum cleaner and which contains a plurality of longitudinally mounted ultraviolet ray tubes. When the air passes over these tubes, micro-organisms contained in the air are killed by exposure to the ultraviolet radiation emitted from the tubes. The purified air is then returned to the room through an aperture in the housing. The ultraviolet light fixture may be adapted to be used with an existing conventional vacuum cleaner as shown in this specification, or a new combination light fixture-vacuum cleaner may be manufactured.Type: GrantFiled: January 2, 1975Date of Patent: August 24, 1976Inventor: Lawrence Patterson
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Patent number: 3975791Abstract: A piece of furniture has a door or panel swingably mounted by means of a hinge. An elongated biased stud is mounted on a wall of the furniture piece pivotable in such manner that its free end engages the hinge and urges the door to closed position only during the initial increment of the door's movement to open position and the final increment of the door's movement to closed position.Type: GrantFiled: August 30, 1973Date of Patent: August 24, 1976Assignee: Kunststoff GmbHInventors: Anton Hettich, Udo Stellbrink, Gunter Sundermeier
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Patent number: 3975792Abstract: An assembly comprising a rod and parts for supporting drapery and the like, the rod having two identical tracks which extend longitudinally and receive movable hangers. The rod, composed of extruded aluminum, has the same cross-section throughout. The tracks are of rectangular cross section with a continuous slot along a bottom side, such side having a shorter width than the height of the vertical sidewalls of each track. A horizontal bar connects the tracks about midway on the adjacent sidewalls of the track, the bar having substantially the same width as each track. The bar is provided on its top and bottom with grooves of a V-configuration in cross-section, the grooves extending longitudinally and being centered relative to the width of the bar and providing for the centering of a drill bit for forming an opening for receiving fastening members.Type: GrantFiled: December 31, 1974Date of Patent: August 24, 1976Inventor: Richard W. Janson
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Patent number: 3975793Abstract: A hinge arrangement to permit quick removal of a cabinet door without interference with adjacent cabinets. The hinge arrangement is so configured as to permit the door to be removed by manually lifting the door out when it is in the ninety degree open position.Type: GrantFiled: August 13, 1975Date of Patent: August 24, 1976Inventor: Anthony H. Just
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Patent number: 3975794Abstract: A cam rise hinge has a swingable strap portion which is cammed up relative to a stationary butt portion when a door on which the strap portion is mounted is swung towards its open position. A coiled wire torsion-compression spring is positioned and mounted so as to be compressed and simultaneously twisted when the strap portion is cammed up. This generates two different forces aiding each other and gravity in swinging the strap portion and door back toward closed position.Type: GrantFiled: November 22, 1974Date of Patent: August 24, 1976Assignee: Vollrath Refrigeration, Inc.Inventors: Kenneth L. Kaiser, William Stowik
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Patent number: 3975795Abstract: Apparatus and method for stuffing cold, viscous product into normally flexible film tubing such as shirred tubular plastic film, comprising a stuffing horn having secured to its discharge end a pleat dispersing collar, and inboard thereof a loosely fitted deshirring ring, which coact during stuffing of the tubing to uniformly unfold the pleated film and thereby provide a smoothly stuffed tubular article.FIELD OF THE INVENTIONThe present invention relates to an apparatus and method for stuffing a flowable mass of materials, such as food emulsions, into flexible tubing, such as flexible plastic film casings. More particularly, the invention relates to an apparatus and method ideally suited for use in refrigerated room packaging operations with cold, stiff viscous meat emulsions which are stuffed into shirred lengths of normally flexible plastic film tubing whereby the folds and pleats in said shirred tubing are effectively and substantially straightened and removed as the tubing is being stuffed.Type: GrantFiled: January 20, 1975Date of Patent: August 24, 1976Assignee: Union Carbide CorporationInventors: Vytautas Kupcikevicius, Joseph A. Nausedas, Vytas A. Raudys
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Patent number: 3975796Abstract: A dressing tool includes a rotatable tubular cutting member with an elongated probe member coaxially disposed therein. The probe member extends outwardly beyond the cutting member. The elongated probe is inserted into the anus of the poultry and a vacuum is drawn in the space between the probe and the cutting member. The cutting member is rotated to produce a circular cut around the anus and the tool is then pulled away from the carcass thereby removing the vent and alimentary canal a desired distance away from the carcass. The trigger of the tool is then released causing an air blow to occur between the probe and cutting member. In timed sequence, a wash cycle begins including a blowing period which is used to eliminate excess liquid from the probe and cutting member. Another feature of the invention is the use of a vacuum draw limiting member disposed on the probe for limiting the distance the vent is pulled into the cutting chamber between the probe and the cutting member.Type: GrantFiled: June 11, 1973Date of Patent: August 24, 1976Assignee: Nebraska Technical Equipment CompanyInventor: Joseph A. LaBarber
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Patent number: 3975797Abstract: Cooked shrimp to be peeled are distributed successively to tiers of sets of peeler rolls and cooperative reciprocative bars. The claimed invention permits coordinated adjustments of nip spacing and taper angle in the roll-bar tiers independently at corresponding ends of the sets and in each tier independently of the other permit optimum shucking in the first tier and polishing in the second tier suited to type and condition of shrimp. Cams are engaged by cam follower rollers connected to the peeler rolls to control nip distance between the bar and rolls at both ends as a function of relative vertical positioning of each bar and its associated peeler rolls.Type: GrantFiled: March 22, 1974Date of Patent: August 24, 1976Assignee: Marine Construction & Design Co.Inventors: Eldon L. Grimes, Kenneth W. Bullock
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Patent number: 3975798Abstract: Safety device of a carding machine provided with a pair of crushing rollers wherein a scraping plate is urged to the cylindrical surface of each crushing roller for the entire length thereof. Each scraping plate is turnably supported by a pin so that it can be moved away from the corresponding crushing roller when required. The turning motion of each scraping plate away from or toward the corresponding crushing roller, can be carried out simultaneously by means for setting the position of each scraping plate and a manually operable handle which actuates the setting means. The main driving motor of the carding machine is connected, in series with a main switch and a control switch, to an electric source. The control switch is closed when the handle is operated so as to fix the scraping plates in contacting condition with the corresponding crushing rollers and, on the other hand, the control switch is opened when the scraping plates are moved away from the corresponding crushing rollers.Type: GrantFiled: December 18, 1974Date of Patent: August 24, 1976Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Takashi Katoh, Hideo Hidaka, Singo Oda
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Patent number: 3975799Abstract: This invention relates to a so-called live anchorage for use in the prestressing of concrete structures, the stressing element being anchored in a hole having a frusto-conical portion and a cylindrical portion by means of a frusto-conical wedge device, the leading or narrow end of said wedge device being such that it extends into said cylindrical portion.Type: GrantFiled: August 13, 1974Date of Patent: August 24, 1976Assignee: CCL Systems LimitedInventor: Robert Michael Kerr
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Patent number: 3975800Abstract: A device for adjusting a strap of a safety belt for vehicles and like craft comprises a latch in the form of a bar which is transversely movable with respect to a base plate. The base plate is formed with an opening through which the strap is passed about the bar for clamping the strap between the bar and the base plate when the strap is subjected to pull. At a heavy pull at the strap, the bar is adapted to be shifted laterally of the opening in the direction of pull. Between the base plate and the bar the device has a thin flat member which is associated with the base plate and adapted, at a heavy pull at the strap, to be carried along by the bar when the latter is shifted laterally of the opening. At said shifting movement the flat member lies between the strap and the base plate so that the strap is protected against abrasion under the heavy load.Type: GrantFiled: February 14, 1975Date of Patent: August 24, 1976Assignee: Stece - AB IndustrifjadrarInventor: Stig Axel Goran Farlind
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Patent number: 3975801Abstract: A stringer for a slide fastener has a coupling element formed from a continuous filament with superimposed leg portions and an attaching member. An elongated flexible member extending parallel the attaching member and between the superimposed leg portions is gripped by a groove, a tooth, or the like formed on one leg portion of each pair of leg portions to restrain longitudinal and transverse movement of the leg portions relative to the elongated member. Thread means secures the coupling element and elongated member to one side of the tape by extending over the elongated member or over the one leg portion only between the superimposed leg portions. The elongated member provides dimensional stability to the coupling element.Type: GrantFiled: January 9, 1975Date of Patent: August 24, 1976Assignee: Textron, Inc.Inventor: George B. Moertel
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Patent number: 3975802Abstract: A stringer for a slide fastener is formed by assembling head portions of a spiral coupling element through slots in a support member which is folded and secured to retain the spiral coupling element by strap portions between the slots extending at an oblique angle to the folded edge.Type: GrantFiled: January 9, 1975Date of Patent: August 24, 1976Assignee: Textron, Inc.Inventor: George B. Moertel
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Patent number: 3975803Abstract: A small size snap fastener comprises male and female members formed of thin sheet metal, and each including a metal fitting and a washer. In each case, the metal fitting engages one surface of sheet material and the washer engages the opposite surface thereof, with the metal fitting and the washer firmly gripping the sheet material to an extent sufficient to prevent slipping caused by tearing or rupture of the sheet material at the location where the member is secured to the sheet material. The male metal fitting includes a head having releasable snap engagement in a recess in the associated female metal fitting. The male washer has a central fitting extending therefrom and penetrating through the sheet material to engage in the interior of the head of the male metal fitting and be flared outwardly therein for anchoring.Type: GrantFiled: May 16, 1975Date of Patent: August 24, 1976Assignee: Gondra Industries & Co.Inventor: Morio Katayama
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Patent number: 3975804Abstract: A front insert receptacle for use in fastening two members together. The receptacle including housing opened at one end to removeably receive a stud therein. A stop surface is on the housing to engage with the upper surface of one member when the receptacle is partially extended through an opening therein. Structure is on the housing to form a rotational stop to prevent the housing from rotating with respect to the one member when it is extended therein. At least one cam slot is on the housing and a corresponding cam follower is captured by the cam slot and is initially in a first position when the housing is inserted in the one member.Type: GrantFiled: January 14, 1976Date of Patent: August 24, 1976Assignee: Dzus Fastener Co., Inc.Inventor: Peter Schenk
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Patent number: 3975805Abstract: A guide for slidably accepting opposite edges of an electronic circuit board has a rotating clamp which is open to offer zero frictional resistance when the board is slid into position. The clamp is in effect a bar rotatably mounted in an elongated retainer, the bar having a camming action against the retainer so that when the bar is rotated the entire length of the bar is pressed against the board to anchor it in place.Type: GrantFiled: August 25, 1975Date of Patent: August 24, 1976Assignee: International Electronic Research CorporationInventors: John E. Spurling, Jiri G. Hodek, Edward J. Kessels
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Patent number: 3975806Abstract: Apparatus for initiating compressive treatment of a running length of flexible material wherein the material is confined against a moving drive surface by a confining surface and then retarded by a retarding surface located downstream of the confining surface and spaced from the drive surface. The material is pressed into driven engagement with the drive surface by pressing the confining surface against it while maintaining the retarding surface in ineffective position. The retarding surface is movable toward the drive surface to increase the retarding effect until satisfactory running condition is achieved. The thus pressed confining surface may be shifted upstream while the retarding surface is shifted to engage the material in the region vacated by the confining surface.Type: GrantFiled: August 14, 1974Date of Patent: August 24, 1976Inventors: Richard Rhodes Walton, George Ernest Munchbach
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Patent number: 3975807Abstract: An apparatus for setting fiber crimp by steam in which a crimped filamentary tow is discharged from the tow exit portion of a stuffer-box crimper into an elongated tube sealed to said exit portion and control means for simultaneously regulating steam pressure and the discharge of tow from the tube depending upon the pressure of steam therein.Type: GrantFiled: February 7, 1975Date of Patent: August 24, 1976Assignee: Imperial Chemical Industries LimitedInventors: Donald Bramley, Gerald Thomas Davies, David Watson
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Patent number: 3975808Abstract: For the reproduction of a piezoelectric key, metal layers and resistance layers are applied onto a ceramic substrate having a length which is greater than a multiple of the length of the individual keys. The metal layers are then, corresponding to the number of keys, provided with electrodes, and an additional auxiliary electrode is applied to one of the metal layers. After the ceramic member is encased with a thixotropic resin, by immersing, the substrate is polarized by short-circuited electrode pairs and applying a voltage between the short-circuited pairs and the auxiliary electrode. Thereafter, the individual keys are obtained by severing the same from the encased ceramic substrate.Type: GrantFiled: September 11, 1975Date of Patent: August 24, 1976Assignee: Siemens AktiengesellschaftInventor: Franz Stangl
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Patent number: 3975809Abstract: A cutting insert, especially for milling operations, in which at least one face of the insert has recesses extending from respective corners thereof along respective edges of the inserts. The recesses widen in a direction away from the respective corners and are generally "V" shaped in cross section. The walls forming the bottom of the insert are in the form of skewed planes and make increasing included angles with the respective face of the insert in a direction away from the respective corner of the insert. The recesses at the wider ends have a concave wall portion extending upwardly to the respective face of the insert.Type: GrantFiled: June 13, 1975Date of Patent: August 24, 1976Assignee: Kennametal Inc.Inventors: Edward L. Sorice, Dennis G. Jones
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Patent number: 3975810Abstract: A valve housing is composed of a pair of shell sections each of which has an open side surrounded by an edge face, and a semi-circular rib located within the open side and having a face slightly downwardly recessed from the associated edge face. The shell sections are placed together so that their edge faces abut, and these edge faces are welded to one another. The ribs are semi-circular in mutually opposite directions and thus form a circumferentially complete annular portion. Opposite this portion the housing is provided with an opening having a larger diameter than the portion, and after the shell sections have been welded together a material-removing tool is inserted through this opening and forms on the tubular portion a circumferentially complete annular welding face which is in part of stepped configuration.Type: GrantFiled: June 25, 1975Date of Patent: August 24, 1976Assignee: Eugen VogtInventor: Walter Siepmann
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Patent number: 3975811Abstract: An apparatus, method and supply strip is disclosed for inserting terminals into an apertured workpiece. The apparatus includes feeding means for sequentially advancing the supply strip formed of integrally connected preformed terminals toward a first station of the apparatus; grasping means for grasping the leading one of said terminals at said first station and for maintaining a grasp on said terminal until the terminal is inserted in the workpiece; shearing means for severing the leading one of said terminals from the remainder of said supply strip; and driving means operable to drive the grasping means toward the workpiece for insertion of the terminal carried thereby.Type: GrantFiled: October 30, 1974Date of Patent: August 24, 1976Assignee: General Staple Company, Inc.Inventor: H. T. Meyer
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Patent number: 3975812Abstract: Apparatus for connecting pairs of wires to each other has an operating zone through which a continuous strip of connecting devices is fed from an entrance side to an exit side thereof. The connecting devices have wire-receiving ends which face laterally of the strip and have separate metallic connecting means in each of the ends. A pair of wires are located in the operating zone with one wire in alignment with each of the wire-receiving ends. Insertion punches on each side of the strip insert each wire into a metallic connecting means. The process is then repeated for the second pair of wires to connect the pairs to each other. The connectors are fed to the exit side of the operating zone, and removed from the strip. The apparatus can also be used for making tap connections to the conductors in a cable.Type: GrantFiled: May 12, 1975Date of Patent: August 24, 1976Assignee: AMP IncorporatedInventors: James Earl Fleischhacker, Vincent Nicholas, Henry George Wasserlein, Jr.
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Patent number: 3975813Abstract: A holder for setting a group of tiles on a receiving surface has a base plate provided with permanent magnets dispersed over its surface to hold an array of magnetically attractable tiles. Pusher pins slide through the plate to push tiles therefrom. In an alternate form the plate is made of or incorporates magnetically attractable material for holding tiles having permanent magnets therein.Type: GrantFiled: November 12, 1975Date of Patent: August 24, 1976Inventor: William A. Bell
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Patent number: 3975814Abstract: A process for restoring a suction press shell used in the removal of water in the formation of paper sheets, the shell consisting of a metal cylinder bonded with a rubber cover and perforated by multiple drainage holes which extend from the inner surface to the outer surface of the shell, the inner surface of the metal cylinder being worn and having lost its uniform aspect, the process comprises the steps of: cleaning and roughening the outer metal surface of the cylinder, winding under tension on the outer surface of the cylinder successive layers of a woven glass or synthetic fiber tape from 2 to 6 inches wide, and impregnating with a concentration of 35 to 55% of thermosetting resin until the required thickness of the tape for stiffening the cylinder within acceptable deflection limits is reached, each layer of tape overlapping the preceding layer by 25 to 90% at an angle of wrap of 5.degree. to 15.degree.Type: GrantFiled: May 27, 1975Date of Patent: August 24, 1976Inventor: Sidney Stewart Harrowing
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Patent number: 3975815Abstract: This invention relates to a method of inserting tension wires in the process of wire assembling for a concrete pole or pile characterized in that forward ends of a required number of tension wires are clamped together by a chuck, and the chuck is inserted from one end of a wire cage to the other end and interiorly thereof, so that a number of tension wires can be inserted into the wire cage at one time.Type: GrantFiled: December 30, 1974Date of Patent: August 24, 1976Assignee: Nippon Concrete Industries Co. Ltd.Inventor: Takemitsu Mori
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Patent number: 3975816Abstract: This method is particularly adapted for making tanks of different diameters. A plurality of arcuate forming sections are provided by forming a flexible sheet of a panel section against rigid arcuate forming segments having a degree of curvature corresponding to that of the inner surface of the tank to be formed. Turnbuckles are used to form the flexible sheets against the segments. These forming sections are then accurately located on a base circumference location and rigidly interconnected to make a rigid cylindrical forming structure, against which the fiber reinforced resin is layed up to make the tank structure. The panel sections each comprise a sheet having a pair of vertical edge bracing and connecting flanges by which the panel sections are joined, and a plurality of locating brackets which engage the forming segments to locate the forming sections with respect to one another.Type: GrantFiled: December 10, 1974Date of Patent: August 24, 1976Assignee: Ershig's, Inc.Inventor: Frank A. Carter
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Patent number: 3975817Abstract: An automatic tool transport mechanism for a machine tool having an operating axis, in which a tool is to be transferred between the operating axis of such a machine and the storage structure, with the tool being supplied to the operating station on such operating axis, or to such a storage structure on a storage axis thereof, at least a portion of which is spaced from such operating axis, and employing a transfer arm adapted to be mounted on a machine tool for movement in a predetermined path from a first position adjacent said operating axis to a second position adjacent said space portion of said storage axis, tool gripping means carried by said arm movable in a second predetermined path operative to correspondingly orient such tool gripping means and a tool carried thereby on either said operating axis when said arm is in said first position, or on said storage axis when said arm is in said second position, fluid actuated means, i.e.Type: GrantFiled: October 9, 1974Date of Patent: August 24, 1976Assignee: Houdaille Industries, Inc.Inventor: James L. Frazier