Patents Issued in January 13, 1976
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Patent number: RE28676Abstract: .Iadd.A thermostat for controlling heating apparatus is converted to a thermostat for controlling heating and cooling apparatus by the addition of a subbase. The heating thermostat has a double switch attached to a bimetal and a heating anticipation heater whereby heating apparatus is controlled when connected to the terminals of the thermostat. When it is desired to use the thermostat to control both heating and cooling apparatus, the thermostat is removed from the wall and a subbase is placed under the thermostat. The subbase has a cooling anticipation heater which is thermally connected to the bimetal. The subbase has terminals to connect the assembly of thermostat and subbase to the heating and cooling apparatus. .Iaddend.Type: GrantFiled: January 31, 1974Date of Patent: January 13, 1976Assignee: Honeywell Inc.Inventors: Walter E. Edelman, David J. Sutton
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Patent number: RE28677Abstract: A waste treatment system which is capable of handling materials of widely different physical characteristics such as glass, metal, and fibrous and plastic waste, incorporates a rotor rotatably mounted in a waste receiving vessel, the rotor being adapted to fracture brittle material, compact malleable material, and otherwise pulverize the frangible waste to a particulate form small enough to be extracted through a perforated plate. The rotor also circulates the material in a slurry form within the vessel in a vortical pattern so that the waste is repeatedly treated until it is ejected from the vessel. A series of space attrition bars are mounted outwardly of the rotor to provide an annularly shaped, discontinuous attrition surface, and hammers or flails are pivotally mounted on the rotor to reduce into smaller pieces materials which are flung upon or between the attrition bars by the rotor.Type: GrantFiled: June 21, 1974Date of Patent: January 13, 1976Assignee: Black Clawson Fibreclaim, Inc.Inventors: Earl T. Blakley, David E. Chupka, David L. Harbron, Jr., Paul G. Marsh, Peter Seifert
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Patent number: RE28678Abstract: An electric exposure meter for storing the brightness of a photographic object as an electric voltage of a magnitude corresponding thereto in order to control the exposure time by using the voltage thus stored.Type: GrantFiled: November 16, 1973Date of Patent: January 13, 1976Assignee: Minolta Camera Kabushiki KaishaInventors: Akio Yanagi, Shoichiro Kakuta
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Patent number: RE28679Abstract: An oil burner consists of an outer jacket surrounded and spaced from an inner burner tube to provide a surrounding counterflow chamber. Jacket and tube project horizontally inwards from the surrounding combustion chamber wall. Counterflow chamber is substantially closed at both ends. Tube projects inwardly beyond counterflow chamber and terminates in an upfacing burner head. Communication exists at opposite ends of the part of tube surrounded by counterflow chamber. At startup a tongue of flame travels through tube from an injector nozzle. Part of flame counterflows back through surrounding chamber and recirculates through tube. Another part of flame proceeds on to burner head. When parts sufficiently heated, flame in tube is caused to be extinguished and is replaced by hot clear blue flame jets from burner and a multiapertured band in tube within limits of counterflow chamber at end thereof remote from nozzle where counterflow originates.Type: GrantFiled: November 16, 1972Date of Patent: January 13, 1976Assignee: International Industries Ltd.Inventor: Edgar Clarence Robinson
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Patent number: RE28680Abstract: Apertured nonwoven textile fabrics comprising polyvinyl alcohol fibers and having a predetermined pattern of fabric apertures and fiber bundles created by applied fluid forces; and methods of making the same which comprises: chemically treating and modifying heat-sensitive, water-soluble polyvinyl alcohol fibers to (a) raise their wet softening temperature whereby they are essentially wet heat-insensitive up to a temperature of at least about 150.degree. C.Type: GrantFiled: June 12, 1974Date of Patent: January 13, 1976Assignee: Johnson & JohnsonInventor: Carlyle Harmon
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Patent number: RE28681Abstract: Nickel base superalloys in which critical amounts of boron are employed to enhance creep-rupture strength and ductility in the 1,300.degree. F-1,800.degree. F. temperature range. Creep-rupture strength and ductility at temperatures around 1,800.degree. F. also is enhanced by employing amounts of carbon below a critical upper limit. These alloys are particularly useful in the form of castings as gas turbine engine components.Type: GrantFiled: July 29, 1975Date of Patent: January 13, 1976Inventor: James French Baldwin
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Patent number: RE28682Abstract: A procedure is provided for producing a laminate having a textile backing, a crushed, thermoset plastic foam bonded thereto, and a transparent polymeric film, preferably also a thermoset, which may be printed or colored overall overlying the foam. The structure is self-bonded, i.e., no adhesive is used to bond the laminate to one another. The preferred procedure is to apply a thin layer of foamed latex of a thermosettable polymer on a textile followed by drying the foam, the thickness of the foam being between about 10 mils and 150 mils. The transparent film, preferably thermosetting, is suitably formed by casting a latex upon a release surface such as silicone release paper and drying the same without causing thermosetting (if a thermosettable polymer is utilized). The dry film, still on the release paper, is then suitably coated or printed with a decorative design. The decorated side of the film is then placed against the dried foam layer and bonded thereto by pressure.Type: GrantFiled: June 9, 1975Date of Patent: January 13, 1976Assignee: Rohm & Haas CompanyInventor: Charles E. Hoey
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Patent number: RE28683Abstract: A display panel comprising a plurality of gas-filled cells, each having a pair of energizing electrodes and adapted to be energized in groups to display characters. The panel also includes a plurality of cells which are adapted to be energized so that they glow continuously and facilitate the turning on of the groups of cells which are used to display a character. These auxiliary energizing cells are hidden from view so that they perform their function without being seen and without interfering with viewing of the primary characters.Type: GrantFiled: February 15, 1974Date of Patent: January 13, 1976Assignee: Burroughs CorporationInventor: George A. Kupsky
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Patent number: 3931646Abstract: A double lens headband supported sports goggle system having a fixed main lens and an outer auxiliary lens, the latter being pivotally harnessed to the headband for selective use in conjunction with the main lens or for storage thereabove or below against a wearer's head without detachment from the system.Type: GrantFiled: June 26, 1974Date of Patent: January 13, 1976Assignee: American Optical CorporationInventor: Larry Gordon Loughner
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Patent number: 3931647Abstract: The thumb of a golf glove is provided with a circumferentially wrapped adjustable elongated member for confining relative thumb and thumb-stall movement.Type: GrantFiled: April 3, 1975Date of Patent: January 13, 1976Inventor: Sam Dien
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Patent number: 3931648Abstract: A prosthesis for replacing a defective stapes of the middle ear. A piston is provided for transmitting sound vibrations from the incus to the oval window of the middle ear. A clamp is securely attached to the piston for anchoring the piston to the incus. The clamp is capable of being easily bent to securely grasp the incus and is capable of maintaining that bent shape after the force causing it to be bent is removed.Type: GrantFiled: January 8, 1975Date of Patent: January 13, 1976Assignee: Richards Manufacturing CompanyInventor: John J. Shea, Jr.
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Patent number: 3931649Abstract: Anti-splash attachment means for the flush water circulating rim on a conventional-type toilet bowl. It comprises a first C-shaped strap member which is opposed to inner peripheral surface portions of the encompassing flush rim, said strap member having circumferentially spaced U-shaped stainless steel or equivalent clips. These clips are yieldingly clasped over and clamped on the rim. Vertically disposed guides, more particularly, closed-bottom socket members are fixed to the respective clips and are interiorly provided with suitably nested coil springs. The anti-splash guard or shield comprises a second C-shaped strap member slidingly keyed in slots provided therefor in the socket members. The springs engage and yieldingly project the guard to an elevated position. When the usual hinged seat ring, with or without the cover, is lowered it engages and forces the guard down to a retracted out-of-use position.Type: GrantFiled: November 30, 1973Date of Patent: January 13, 1976Inventor: Ollie F. Jankowski
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Patent number: 3931650Abstract: A urine collection container carried by a person confined to a wheelchair includes a drain tube which is connected to a valve mounted on the person's wheelchair to permit the person, unattended, to empty the contents of the collection container onto the ground or into a floor drain beneath the wheelchair. The valve may be manually operated, as by a lever within reach of the wheelchair occupant, or may be operated using a solenoid. The latter construction permits remote operation of the valve utilizing a low current sensitive switch operable, for example, by a quadraplegic. In addition, the solenoid operated valve permits the use of a timing circuit which automatically closes the valve a predetermined period of time after the valve is open to prohibit the valve from accidentally being left open and additionally to permit handicapped persons to both open and close the valve with a single switch operation.Type: GrantFiled: March 24, 1975Date of Patent: January 13, 1976Inventor: Kent A. Miller
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Patent number: 3931651Abstract: A thin flexible liner having a horizontal flange overlying the top surface of a bathtub and a main portion covering the inner wall of the bathtub. The liner is open at bottom leaving the bottom of the bathtub exposed. The flange is held removably in contact with the top surface of the bathtub by magnetic or suction securing means. The liner can have a small slotted region in registration with an overflow outlet in the bathtub.Type: GrantFiled: January 6, 1975Date of Patent: January 13, 1976Assignee: The Raymond Lee Organization, Inc.Inventor: Francis X. Weir
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Patent number: 3931652Abstract: An inflatable liner for a standard kitchen sink has a bottom, sides, and ends formed from contiguous inflatable ribs. The sides and ends are formed from horizontal ribs which extend above the level of the sink. An inflatable pillow with an air valve in its lower side extends from one end of the liner to rest on the sink top. A drain is formed in the end of the bottom of the liner opposite the pillow. The liner, when used with a sink, provides a tub for bathing infants.Type: GrantFiled: March 20, 1975Date of Patent: January 13, 1976Inventor: Barry A. Navarra
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Patent number: 3931653Abstract: A body rest apparatus having a base to be placed on a support surface and having a back rest actuable to different inclined positions relative to the base by a motor driven screw and nut mechanism located within the dihedral angle formed between the base and back rest elements.Type: GrantFiled: September 30, 1974Date of Patent: January 13, 1976Inventor: Jack M. Bien
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Patent number: 3931654Abstract: A device for positioning and supporting the lower leg and foot of a patient while lying on the side during periods of extended bedrest is formed from a block of polyurethane foam having resilient characteristics, and being of such configuration as to include a plurality of vertically extending sides between which an open arcuate groove extends longitudinally along the length of the block providing a cradle for the lower leg and a transverse slot extending across the vertical sides adjacent one end of the block for receiving a foot of a patient enabling the patient to lie on his side with the uppermost leg portion being positioned perpendicularly to the lower leg portion which is positioned perpendicularly to the foot.Type: GrantFiled: November 4, 1974Date of Patent: January 13, 1976Inventor: Donald C. Spann
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Patent number: 3931655Abstract: An inflatable boat is preferably of sectional construction and includes a bow section, an intermediate section and a stern section which are releasably secured together. Each boat section is comprised of inflatable side members that are of generally rectangular configuration and which form the sides of the boat. Inflatable transverse members of each section are secured together and serve as seats for the boat. The sections may be readily disconnected from each other, and each section may then serve as a small buoyant craft.Type: GrantFiled: January 21, 1974Date of Patent: January 13, 1976Inventor: Terry L. Luscombe
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Patent number: 3931656Abstract: A surfboard leash for attaching a surfboard to a surfer, having a tubular outer element made of a resilient material such as rubber, and a partially resilient inner reinforcement element made from a material having a limited stretching ability, such as braided nylon cord. The natural length of the inner reinforcement element is several times the natural length of the outer casing, so that when unextended it lies coiled within it, but the maximum stretched length of the inner reinforcement element is less than the maximum stretched length of the outer tubular casing so that the outer casing is protected from breakage.Type: GrantFiled: June 13, 1974Date of Patent: January 13, 1976Inventor: Derek Vincent Thomson
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Patent number: 3931657Abstract: A personal flotation device includes front and rear panels secured together to form an aesthetically appealing life vest. The panels are provided with relatively thin sheets of buoyant material of sufficient buoyancy to cause a user to remain afloat while in the water. The vest is provided with an inflatable bladder which may be readily inflated to increase the buoyancy of the flotation vest. The flotation vest is also provided with a collar through which the bladder extends and serves to cause the user to float face-up when the bladder is inflated.Type: GrantFiled: June 12, 1974Date of Patent: January 13, 1976Assignee: Rubber Dynamics CorporationInventor: Walter C. Jones
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Patent number: 3931658Abstract: A car wash apparatus having inner and outer, counterrotating curtain assemblies of circular configuration. Each curtain comprises strip elements which at rest are suspended in close proximity to those strip elements of the other curtain. The strips are displaced during travel over the car body resulting in the strips from one curtain intermingling with strips of the other curtain to enhance the strips cleaning action. A drive mechanism powers the curtains through concentric drive shafts with a water supply shown provided through same. Curtain confining means are supported adjacent the curtain paths guiding the curtain strips for rotational travel into desired impingement against the vehicle body. The strip elements may include highly flexible fibrous segments to clean irregular surface areas of the vehicle. Rotary brushes within the inner curtain assembly clean the vehicle sides. Said brushes are powered via a continuous cable carried by said curtain assembly reeved through power take-off pulleys.Type: GrantFiled: November 11, 1974Date of Patent: January 13, 1976Inventor: Lyle B. Evans
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Patent number: 3931659Abstract: A floor treating machine supported at the floor or surface to be treated by means of a work disk arranged beneath a substantially ring-shaped stop member, the work disk being detachably coupled with a drive motor. There are provided two selectively insertable work disks of different diamter and a ring-shaped stop member is provided for each such work disk.Type: GrantFiled: June 24, 1974Date of Patent: January 13, 1976Assignee: Diethelm AGInventors: Kurt Pfefferkorn, Charles Serou
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Patent number: 3931660Abstract: A guide structure straddling the path of a vehicle to be washed carries a vertically movable horizontal rotary brush, a pair of laterally displaceable first vertical rotary brushes moving in a first transverse plane perpendicular to that path, a pair of second vertical rotary brushes with shafts tiltably mounted on horizontally swingable main supporting arms pivoted to the structure downstream of the first pair, and a pair of vertical third rotary brushes mounted on horizontally swingable ancillary arms which intersect the main arms and are also pivoted to the structure downstream of the first pair.Type: GrantFiled: October 2, 1974Date of Patent: January 13, 1976Inventor: Uberto Capra
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Patent number: 3931661Abstract: Apparatus for scrubbing, rinsing, drying and packaging very fine, hollow cylinders or straws employed in artificial poultry insemination, includes straw transport means moving straws in fixed orientation through successive cycles including interior washing and drying and magazine loading entirely automatically.Type: GrantFiled: August 8, 1974Date of Patent: January 13, 1976Assignee: Tur-Colossus, Inc.Inventors: Albertus G. Horsting, Samuel Luzaich
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Patent number: 3931662Abstract: A self-propelled machine includes a main housing supported on front and rear drive rollers and has an operator control handle extending from the rear. Front and rear elongated working brushes are driven in orbital movement in horizontal planes, with the front brush being positioned ahead of the front roller and the rear brush positioned behind the rear roller. A supply tank for the working solution includes agitating and aerating means for creating a foam dispensed from a pressurized tank through a flow control gate, and applied to the floor surface ahead of the front brush. The drive rollers act as squeegies. A collection system includes vacuum pickup nozzles adjacent each of the drive rollers for picking up material from the floor surface which is collected in a collection tank.Type: GrantFiled: August 20, 1973Date of Patent: January 13, 1976Inventors: James E. Nayfa, Andrew D. Stanley
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Patent number: 3931663Abstract: In a springless self-latching hinge having a pair of hinge members pivotally connected by a hinge pin, one hinge member is formed of resilient material configured releasably to maintain the hinge closed. This resilient hinge member includes a spaced pair of hinge pin receiving knuckles extending from a base portion which may be slightly bowed toward the pin. The other hinge member has a hinge knuckle terminating at a bearing sleeve a portion of which incompletely encircles the pin to define a recess. A boss projects from the central base portion of the resilient hinge member to engage the bearing sleeve recess when the hinge is closed. As the hinge is opened, the bearing sleeve depresses the boss to place the central region under compression. Thus the hinge is held releasably closed until sufficient opening effort is exerted to rotate the hinge and thereby compress the resilient member.Type: GrantFiled: December 6, 1974Date of Patent: January 13, 1976Assignee: Jaybee Manufacturing CorporationInventors: Frank A. Holmes, Benjamin H. Stansbury, Jr.
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Patent number: 3931664Abstract: The present invention is an improvement in a door hinge construction for use on automotive vehicles for preventing the door from closing when the vehicle is parked on a sloping surface or from wind forces which act to close the door. A torsion bar is mounted in the stationary portion of the hinge and has a straight end portion which biases against a pair of rollers mounted on the movable portion of the hinge attached to the door to apply a torque to the movable hinge portion to maintain the door in the open position, with this torque increasing with wider opening of the door.The use of the rollers present a sliding contact with the torsion bar, thus eliminating unpleasant clicking noises during door opening and closing operations.Type: GrantFiled: August 11, 1972Date of Patent: January 13, 1976Assignee: Aisin Seiki Kabushiki KaishaInventors: Ryuzo Nakano, Ryoichi Fukumoto, Kenichi Fukura
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Patent number: 3931665Abstract: A stripper means for meat skinning machines is disclosed wherein the machine includes a driven toothed roll which is rotatably mounted on a frame means adjacent one end of a feed table. A pressure shoe means extends around a portion of the driven roll and has a skinning blade extending therefrom for severing the skin from the meat product as the product is moved thereby. The driven roll is provided with a plurality of spaced apart annular grooves formed in the peripheral surface thereof. A stripping shaft is mounted on the frame means below the driven roll and has a plurality of stainless steel stripping elements or blades mounted thereon in a spaced apart relationship. The stripping shaft is provided with a plurality of spaced apart grooves formed in one side thereof which receive one end of the stripping element. Each of the stripper elements has a hook-like upper end portion which is received in the grooves of the driven roll with the hook portion extending around the driven roll in excess of 180.degree.Type: GrantFiled: August 23, 1974Date of Patent: January 13, 1976Assignee: Townsend Engineering CompanyInventor: Ray T. Townsend
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Patent number: 3931666Abstract: A diaper fastener comprising a strip of tape having an adhesive mass disposed over a surface thereof and a unit removably secured to the strip in a longitudinally central portion of the strip. The unit provides an exposed surface (facing away from the strip surface) having a limited affinity for the adhesive. An end portion of the strip is folded over and in contact with the unit exposed surface. The unit itself comprises outer and inner layers of web each of which has a surface which has limited affinity for the adhesive and which faces away from the other layer. The outer layer includes tabs which project longitudinally beyond the ends of the inner layer and which are secured to the strip surface.Type: GrantFiled: February 4, 1974Date of Patent: January 13, 1976Assignee: Colgate-Palmolive CompanyInventor: Hamzeh Karami
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Patent number: 3931667Abstract: An attachment device comprising a filament having a laterally oriented bar at one end and a hollow body member at its other end, a wall of said body member having an opening therethrough large enough to receive the filament and the bar when they are in parallel orientation but of a width smaller than the length of the bar so as to prevent the withdrawal of the bar from the hollow interior subsequent to insertion, a self-contained, interlocked attachment thereby being obtained.Type: GrantFiled: May 8, 1974Date of Patent: January 13, 1976Assignee: Dennison Manufacturing CompanyInventors: Francis G. Merser, Philip A. Kooistra
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Patent number: 3931668Abstract: A kitchen utensil holder in combination with a clamp for mounting the holder to a pan or other container is described. The holder includes a supporting member, first and second outer loops spaced laterally from one another, first and second connectors respectfully connecting the first and second outer loops to a third inner loop having an opening that is greater than the space between the first and second loops. One of the outer loops is connected at one end to a support member. The other end of the support member is connected to a clip or clamp. The latter is adapted for attaching to the rim of a bowl or sauce pan.Type: GrantFiled: March 28, 1975Date of Patent: January 13, 1976Inventor: Carl J. Hombach
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Patent number: 3931669Abstract: Apparatus to cut or shear loop pile fabric by moving the loop pile fabric to be cut or sheared over a rotating cutting member which cuts the loops in the fabric but prevents the fabric backing material from being cut by the use of guard members for the cutting blades. The guard members are pivotally mounted to allow ease of blade sharpening.Type: GrantFiled: March 3, 1975Date of Patent: January 13, 1976Assignee: Deering Milliken Research CorporationInventor: Michael William Gilpatrick
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Patent number: 3931670Abstract: A releasable pull plug arranged for mounting inside the end of one of the pipes or conduits with the plug having clips for disengageably engaging the internal surface of one of the conduits and locking the plug against axial movement relative thereto. A line is attached to the plug and extends axially through the other conduit for exerting a pulling force thereon whereby the two conduits may be drawn together by pulling on the line. The plug is provided with fluid pressure actuated release means for disengaging the clips, and means are provided for applying pressurized fluid to the release means to thereby release the plug. Means are also provided which are operable in response to the activation of the release means for holding the locking means in the disengaged position independently of the fluid pressure, whereby the plug after release may be withdrawn through the other conduit by pulling on the line. The plug may include means for sealing the end of the conduit in which the plug is mounted.Type: GrantFiled: April 25, 1974Date of Patent: January 13, 1976Assignee: HydroTech International, Inc.Inventor: James F. Arnold
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Patent number: 3931671Abstract: This invention relates to a terminal locator and retainer device for use in crimping dies. More particularly the device consists of a molded block of resilient material which contains locating means for accurately positioning the terminal and retaining means for holding the terminal and wire being terminated without need for external support. Further, the device provides a dynamic means for preventing terminal bowing.Type: GrantFiled: September 30, 1974Date of Patent: January 13, 1976Assignee: AMP IncorporatedInventor: Larry Eugene Dittmann
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Patent number: 3931672Abstract: Disclosed is a deformable wire stripper comprising either a single or set of blades fabricated from a deformable material such as a plastic. The material is selected so it will undergo plastic or elastic deformation upon contact with a metal conductor, but yet will penetrate and cause deformation of the wire insulation to be stripped.Type: GrantFiled: June 19, 1974Date of Patent: January 13, 1976Assignee: Raychem CorporationInventor: Dennis Siden
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Patent number: 3931673Abstract: Improved thermoelectric device and process, comprising the high-temperature, vacuum bonding of a graphite contact and silicon-germanium thermoelectric element by the use of a low void, aluminum, metallurgical shim with low electrical resistance sandwiched therebetween.Type: GrantFiled: October 8, 1969Date of Patent: January 13, 1976Assignee: The United States of America as represented by the United States Energy Research and Development AdministrationInventor: Robert V. Eggemann
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Patent number: 3931674Abstract: A self-aligned charge coupled device comprises a semiconductor substrate having implanted barrier regions, an insulation layer disposed over the substrate, a first layer of closely spaced electrodes, a second layer of closely spaced electrodes interlaced between electrodes of the first layer and separated by insulation, and a conductor deposited between the first and second electrodes so as to electrically connect portions of the first electrodes to portions of the second electrodes.Type: GrantFiled: February 8, 1974Date of Patent: January 13, 1976Assignee: Fairchild Camera and Instrument CorporationInventor: Gilbert F. Amelio
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Patent number: 3931675Abstract: An electric dry shaver wherein the cutter head assembly is held securely within a cutter head receptacle portion thereof by means which includes latch members on the cutter head in latching engagement with a detent spring on the bottom wall of the receptacle. Additional means are provided for pivoting the receptacle away from the casing for presenting the detent spring in position to release the cutter head or clean the adjacent casing area.Type: GrantFiled: June 12, 1974Date of Patent: January 13, 1976Assignee: Sperry Rand CorporationInventors: Peter A. Czerner, John F. Daniels, Maurice A. Melito, Jr., Edward Szymansky
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Patent number: 3931676Abstract: A portable power saw apparatus is disclosed having an endless saw chain driven about a bow bar by an internal combustion engine. The apparatus includes a pair of transversely spaced legs respectively secured to the chain guide adjacent the outer end thereof and extending downwardly therefrom. The legs provide a ground-engageable abutment to support the outer end portion of the chain guide and saw chain, and they also define a size guage determinative of the largest diameter object acceptable between the legs for severance by the saw chain. Skid means secured to the handle structure of the apparatus is oriented at substantially the same elevation as the legs and forms a ground-engageable means therewith to support the saw apparatus in a generally horizontal orientation in certain operating modes.Type: GrantFiled: February 11, 1974Date of Patent: January 13, 1976Inventor: William E. Merle
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Patent number: 3931677Abstract: An assembly for creating die stone castings for dental restoration (inlays, crowns, and fixed bridges) comprising (a) a die pin setter comprising a flexible plastic tube or rod positionable in substantially super-imposed relation above the curvilinear array of cavities in a dental impression formed of elastic material, (b) a die pin holder comprising a series of bifurcated clips each forced down over the plastic tube in press-fit relation but nonetheless accommodating rotation of each clip in respect to the plastic tube into generally coaxial relation with an adjacent impression cavity, and (c) a dual dowel or die pin unit associated with each clip with at least one upper pin of the unit press-fit in depending relation into a blind bore of the associated clip locating two lower dowel or die pins in the adjacent impression cavity. The depending association between each clip and its dual pin unit allows relative rotation to aid in properly orienting the two lower die pins in the adjacent impression cavity.Type: GrantFiled: February 6, 1974Date of Patent: January 13, 1976Inventor: Lawrence E. Tinder
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Patent number: 3931678Abstract: A process for repairing dental caries which comprises:A. Removing decayed tooth structure to form a dental cavity;B. Filling said cavity with a dental filling composition comprising1. A free-radical polymerizable acrylate monomer;2. A free radical polymerization initiator; and3. An inorganic filler;C. Applying an aqueous solution of waterglass to the surface of the composition and allowing the water to evaporate to leave a solid, essentially oxygen-impermeable coating of waterglass;D. Permitting said composition to harden to form a restored dental surface; andE. Washing off the waterglass coating with water.Type: GrantFiled: September 24, 1974Date of Patent: January 13, 1976Assignee: Loctite (Ireland) LimitedInventors: Denis J. O'Sullivan, T. Eisirt Casey
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Patent number: 3931679Abstract: The patient simulator provides a skull with a mandible and maxilla relatively arranged and supported for movement simulating that of a human mandible and maxilla, and having a skin covering with the natural appearance and "feel" of the human skin. The simulator additionally includes a resilient tongue, and soft palate or velum which with the skin covering defines the mouth cavity. With practice dentures releasably secured to the mandible and maxilla the dental student can practice on various tooth conditions under substantially normal working conditions.Type: GrantFiled: November 5, 1973Date of Patent: January 13, 1976Assignee: Den-Tal-Ez Mfg., Co.Inventor: Donald F. Carter
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Patent number: 3931680Abstract: The specification describes an automatic machine for measuring the length, width and girth of a foot for the purpose of determining the most appropriate shoe size. The machine measures the width of the foot at a distance approximately three quarters of the length of the foot from the heel end and measures the girth of the foot at the same position. Placing the heel against a heel stop on a platform initiates motor driven movement of a toe stop towards the toes. When the toe stop comes into abutment with the toes, a microswitch is actuated which starts a motor driving one of two width probes for bringing the two width probes into engagement with opposite sides of the foot, the width probes being coupled together for lateral floating movement. The width probes are mounted on a carriage which is driven lengthwise of the foot in conjunction with the toe stop end at three-quarters of the speed of the toe stop.Type: GrantFiled: January 23, 1974Date of Patent: January 13, 1976Assignee: Clarks LimitedInventor: Christopher John Greensides
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Patent number: 3931681Abstract: The present invention relates to a method of and a device for positioning or setting the blade in the cutter drum of a wood-chipping machine or the like.Type: GrantFiled: September 7, 1973Date of Patent: January 13, 1976Inventor: Ferdinand Sybertz
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Patent number: 3931682Abstract: Apparatus and method for removing moisture from moisture bearing material comprising supporting structure for supporting the material, a vibrator unit for vibrating the supported material and an electrostatic unit for electrostatically removing moisture from the vibrating material. The vibrator unit and the electrostatic unit are disposed in aligned relation substantially transverse to the supported material to respectively and substantially act in unison thereon.Type: GrantFiled: May 14, 1974Date of Patent: January 13, 1976Inventor: James T. Candor
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Patent number: 3931683Abstract: A dryer for particulate material combines the drying effect of a stream of heated gas circulated by a blower in a closed duct system with that of a radiator structure which is in the drying chamber and is in a heat pump circuit. The condenser of the heat pump circuit is in the duct system where it condenses moisture from the gas which has passed through the particulate material. The heat pump compressor is driven by an internal combustion engine which is in a compartment in heat exchange relationship with the duct system. The engine cooling system radiator is immediately downstream from the condenser and the engine exhaust system includes a heat exchanger which is in the duct downstream from the engine cooling radiator.Type: GrantFiled: November 18, 1974Date of Patent: January 13, 1976Inventors: Ray D. Crites, David A. Block, Paul H. Sidles
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Patent number: 3931684Abstract: A curing chamber has entry and exit ports for passing articles to be cured therethrough. Air curtains are provided at the inlet and exit ports. Communicating means connect the air curtains to a source for maintaining a pressure equilibrium at the air curtains. Means from outside the air curtains supply a controlled heated moist vapor for providing predetermined moisture to the air curtains to thereby reduce the escape of volatile gases within the curing chamber.Type: GrantFiled: October 7, 1974Date of Patent: January 13, 1976Assignee: J. J. Baker Company LimitedInventors: James O'Hara Turnbull, William Lipscomb Merritt, Ivan Patrick McLaughlin
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Patent number: 3931685Abstract: This invention relates to an elastic-topped athletic shoe for use by a football player wherein the lacing of a conventional shoe is replaced by an elastic panel integral with the shoe and forming the instep portion thereof, said panel being extended to connect integrally with a tubular elastic member encompassing the ankle of the wearer, said elastic panel and tube serving to retain the shoe securely on the wearer's foot.Type: GrantFiled: November 15, 1974Date of Patent: January 13, 1976Inventor: Hubert T. Laukaitis
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Patent number: 3931686Abstract: A fastener for closure in wearing apparel having adjacent edges with spaced opposed eyelets providing two elongate elastic elements each laced through eyes along one edge of the closure to form adjacent spaced loops with plural hook elements releasably joining opposed loops on each side of the closure. The fastener is particularly adapted for use in boots.Type: GrantFiled: February 25, 1974Date of Patent: January 13, 1976Inventor: Archie B. Rathbun
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Patent number: 3931687Abstract: An ejector roller and guide arrangement having a pair of rollers beveled on their outer edges, one on each side of the ejector frame, which travel between horizontal upper and lower tracks mounted on the pusher frame. The beveled edges of the rollers ride on inwardly angled surfaces of the track. Separate rollers on inwardly angled axes of rotation roll on separate track secured to the side walls of the bowl having outwardly angled surfaces. The longitudinally spaced rollers provide lateral and vertical guidance of the ejector in moving into and out of the scraper bowl for ejection of the earth material.Type: GrantFiled: November 13, 1974Date of Patent: January 13, 1976Assignee: Clark Equipment CompanyInventor: Robert C. Johns, Jr.