Patents Issued in December 30, 1980
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Patent number: RE30461Abstract: A railway car center plate assembly comprising a truck bolster having a bowl-shaped truck center plate and a body bolster having secured to its underside a body center plate. The body center plate has a flat surface from which extend downwardly two substantially perpendicular, concentric, cylindrical flanges encircling a bore, the diameter of the outermost flange being such that its outer vertical surface is encompassed by the inner vertical surface of the flange on the truck center plate. Positioned between the body center plate and the truck center plate is an annular, synthetic elastomeric bearing pad which is located within and substantially fills the annular space between the flanges of the body center plate and under load contacts the vertical surfaces of the flanges of the body center plate.Type: GrantFiled: August 2, 1977Date of Patent: December 30, 1980Assignee: E. I. Du Pont de Nemours and CompanyInventors: William H. Bogar, deceased, Howard D. Irwin
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Patent number: RE30462Abstract: A platform is mounted in the doorway of a van so that it can be rotated from an upstanding stored position to a horizontal loading position level with the vehicle floor. From this point, it can be lowered to the ground. A particular linkage and cable-and-drum combination is disclosed which is very compact in the stored position. The unit is fully automated in that: (1) a switch, internal of the vehicle, can be actuated to mechanically open the vehicle doors and rotate the platform from the storage to the loading position or vice-versa; (2) a switch, accessible from the platform, can be actuated to lower or raise the platform between the loading and ground positions; and (3) a switch, external of the vehicle, can be actuated to open the doors and move the platform from the stored to the ground positions or vice-versa.Type: GrantFiled: September 28, 1978Date of Patent: December 30, 1980Inventor: Leo Pohl
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Patent number: RE30463Abstract: Ambient drying traffic paint compositions and methods for their applicaton are disclosed comprising a resin binder and pigment(s) in a three-component or four-component solvent system, in parts by weight of:solvent boiling point: 190.degree.-141.degree. F.; 5-11solvent boiling point: 140.degree.-106.degree. F.; 12-17solvent boiling point: 105.degree.-90.degree. F.; 2-.[.28.]. .Iadd.28.99 .Iaddend.solvent boiling point greater than 225.degree. F. 0-12The disclosed compositions are applied at ambient temperatures without the use of external heating means and a relatively fast dry time of about 20 to 60 seconds is obtained.Type: GrantFiled: March 30, 1979Date of Patent: December 30, 1980Assignee: Prismo Universal CorporationInventors: David R. Miller, Jack E. Wolfe, deceased
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Patent number: RE30464Abstract: In an ammoxidation process where reactant gases comprised of a lower alkyl-substituted aromatic hydrocarbon, oxygen, and ammonia are passed over an ammoxidation catalyst in a fixed or fluidized bed system, the improvement of reducing combustion of hydrocarbon and ammonia and achieving a more favorable product distribution by distributing a stream containing reactant oxygen throughout the catalyst bed.Type: GrantFiled: September 25, 1978Date of Patent: December 30, 1980Assignee: Sun Ventures, Inc.Inventors: Howard P. Angstadt, Jack D. Tinkler, Richard V. Norton, Ronald D. Bushick
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Patent number: RE30465Abstract: An aluminum alloy wire having an electrical conductivity of at least sixty-one percent (61%) based on the International Annealed Copper Standard and unexpected properties of increased ultimate elongation, bendability and fatigue resistance when compared to conventional aluminum alloy wire of the same tensile strength. The aluminum alloy wire contains substantially evenly distributed iron aluminate inclusions in a concentration produced by the addition of more than about 0.30 weight percent iron to an alloy mass containing less than about 99.70 weight percent aluminum, no more than 0.15 weight percent silicon, and trace quantities of conventional impurities normally found within a commercial aluminum alloy. The substantially evenly distributed iron aluminate inclusions are obtained by continuously casting an alloy consisting essentially of less than about 99.70 weight percent aluminum, more than 0.30 weight percent iron, no more than 0.Type: GrantFiled: September 23, 1974Date of Patent: December 30, 1980Assignee: Southwire CompanyInventor: Roger J. Schoerner
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Patent number: RE30466Abstract: A device for producing a 2 N-pole magnetic field in a rhombic or a rectangular prismal space comprises 2 N sets of conductors extended axially of the space along a yoke inside surface defining the space. Electric currents are caused to flow through the conductors with a current density distribution given by -d.phi./ds where .phi. and ds represent a potential for the field and a differential line element directed perpendicularly along the yoke inside surface of the prism axis. The current density distribution is generalized, for production of a general static magnetic field, to current components perpendicular to a plane intersecting the yoke inside surface at a plane curve, when ds represents a differential line element tangential to the curve.Type: GrantFiled: June 13, 1979Date of Patent: December 30, 1980Inventor: Hidetsugu Ikegami
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Patent number: RE30467Abstract: .Iadd.An electronic scorer for scoring bowling games played by a multiplicity of players including a device for receiving pinfall information relevant to the balls rolled by a multiplicity of players during a bowling game, a single computation device for computing the bowling scores for all of the multiplicity of players, a multiple player storage for storing scores held by the multiplicity of players and other information relevant to their games and a single control system connected to the pinfall receiving device, the computer and the multiple player storage for directing the computation of the bowling scores of each of the multiplicity of players. .Iaddend.Type: GrantFiled: December 29, 1978Date of Patent: December 30, 1980Assignee: Brunswick CorporationInventors: Robert W. House, Rolland D. King, Robert F. Roller, David A. Williams
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Patent number: RE30468Abstract: The invention concerns a dynamic range compressor type encoder or expander type decoder, in which a main signal component in a main path is boosted or bucked by a further signal component derived from a point in the main path by a further path having the characteristics of so restricting the further signal component that the boosting or bucking action is only appreciable below a low level threshold. In the present invention the further signal component is a difference signal formed between a direct signal derived from a point in the main path and a delayed version of either the same signal or of another signal derived from another point in the main path. At the frequency equal to the reciprocal of the delay, and at harmonics of this frequency, the direct and delayed signals cancel. The compressor or expander action, and hence noise reduction action, takes place only at intervening frequencies.Type: GrantFiled: August 28, 1978Date of Patent: December 30, 1980Assignee: Dolby Laboratories, Inc.Inventors: Ray M. Dolby, Paul A. Spencer
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Patent number: 4241457Abstract: A bullet-proof or similar protective garment incorporates therewithin segmented panels. The panels are employed to resist penetration of a bullet or other projectile. The panels are configured such that they are flexible or hinged under ordinary conditions, but rigid upon projectile impact. The hinging is achieved by the disposition of the segments of the panel in relationship to the adjacent segments.Type: GrantFiled: April 26, 1978Date of Patent: December 30, 1980Inventors: John M. Klein, Robert B. Wilson
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Patent number: 4241458Abstract: A bunting for attachment to a seat, which seat may be used with a stroller or other vehicle, includes slits for receiving waist and crotch straps so that a child may be secured to the seat with the bunting either open or closed. The bunting includes a zipper fastening to close it over the front of the child and drawstrings at both the bottom and top. The combination of these various features interact to provide the bunting with flexibility so that it may be adjusted to accommodate many situations and weather conditions.Type: GrantFiled: June 1, 1979Date of Patent: December 30, 1980Inventor: Mary Lesesne
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Patent number: 4241459Abstract: A vest-type garment is provided including right and left front panels removably securable together by a slide fastener. The opposite side portions of the vest defining those portions which extend over the shoulders of the wearer included elongated transverse strips of a first "VELCRO" material secured thereto and second strips of a second "VELCRO" material have one pair of ends thereof anchored relative to a corresponding pair of ends of the first mentioned strips and the second strips may be positioned in overlying relation to and releasably engaged with the first strips, over equipment bag straps disposed between the superposed strips.Type: GrantFiled: January 26, 1979Date of Patent: December 30, 1980Inventor: Stephen R. Quayle
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Patent number: 4241460Abstract: A pull-on slacks construction characterized by an elastic waistband which is "seamless" in the sense that there is no rear seam and the front joint of the band is hidden by a simulated flap, complete with buttons or the equivalent, offset laterally from a front fly which does not extend through the waistband and is constructed from pattern-cut portions which are unitary with rise portions which are wide enough to act as free facings on the inside of the rise portion of the finished slacks. There are no side seams in the leg or rise portions but only inside leg seams, crotch and back seams, and the whole garment is of stretchable material for form-fitting, attractive style with simple, smooth lines and at the same time economical to manufacture.Type: GrantFiled: June 8, 1979Date of Patent: December 30, 1980Inventor: Love J. Tolbert
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Patent number: 4241461Abstract: An extensible length sleeve which may be lengthened by the wearer utilizes a pair of seams to attach the sleeve cuff to the lower end of the sleeve. One of the seams is selectively removable to allow an underlying pleat in the sleeve fabric to be released, thus allowing the length of the sleeve to be extended. The attaching seams are hidden from view by sleeve fabric both before and after lengthening, so that the appearance of the sleeve is not altered by the lengthening.Type: GrantFiled: November 13, 1978Date of Patent: December 30, 1980Assignee: Piedmont Industries, Inc.Inventors: William R. Jolly, James G. Kohn
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Patent number: 4241462Abstract: A diaper cover type garment has a first panel with lateral edges which curve from a maximum near a rearward edge to an intermediate minimum corresponding to a between leg portion and which curve outward to a front edge. A second panel slightly and uniformly tapers from a rear edge connection to a front edge connection. The second panel is formed of an inward fabric layer and a waterproof sheet layer facing the first panel. The first and second panels are stitched downward along lateral edges of the second panel in a back portion of the garment.Fasteners are arranged in sloping lines on a front portion of the garment, and complementary fasteners are mounted within rearward corners of the front panel. Hook and loop fasteners are mounted on the panels without reinforcement. Reinforcement panels are provided on the inside of the first panel with snap type fasteners.Type: GrantFiled: October 11, 1974Date of Patent: December 30, 1980Assignee: Nishiki Co., Ltd.Inventors: Hiroshi Tagawa, Kenichiro Kurisu
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Patent number: 4241463Abstract: A prosthetic joint for use in replacing the ball end of a biological joint, the replacement including a spherical head for insertion into a natural socket, an insert in the head and locked therein by an inwardly projecting ring in the head and a groove in the insert, a ball shaped member seated in the insert and having a neck and a stem for mounting the joint on the end of the biological member on which the ball is being replaced and a ring having a downwardly and inwardly sloping outer wall seating in a recess in the plastic insert and locking the ball shaped member in the insert.Type: GrantFiled: October 16, 1978Date of Patent: December 30, 1980Assignee: Precision Cast Specialties, Inc.Inventor: Modest Khovaylo
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Patent number: 4241464Abstract: A fluid jet device for removing foreign matter from a pool of liquid comprising a hollow substantially cylindrical housing including a housing channel formed therein, an elongated rotatably member including a convoluted spiral formed on the outer surface thereof disposed within the housing channel and a coupling device to rotatably mount the elongated rotatably member to permit fluid to pass rapidly through the convoluted spiral to cause a rotation of the elongated member continuously changing the direction of the fluid exiting the fluid jet device.Type: GrantFiled: June 29, 1979Date of Patent: December 30, 1980Inventor: Nevin Buckwalter
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Patent number: 4241465Abstract: Waterbed mattress having an internal honeycomb baffle structure for preventing undesired wavelike motion of the water within the mattress. The honeycomb structure is detached from the top wall so that it does not interfere with the normal flotation support of the mattress. Openings in the baffle structure permit the water to circulate and prevent the formation of "hot spots" in the mattress.Type: GrantFiled: January 3, 1979Date of Patent: December 30, 1980Assignee: New World Manufacturing, Inc.Inventors: Chris M. Yarimie, Jerry E. Moore
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Patent number: 4241466Abstract: Discloses a safety bed sheet for use in preventing a child or elderly person from falling out of bed or from kicking off the covering blanket while sleeping. The safety bed sheet is in the form of a fitted bottom sheet and a superposed top sheet that is the same width as the bottom sheet's upper surface but cut-off both on the foot end and the head end, and, hence is shorter in length than the bottom sheet. The top and bottom sheets are stitched together along one of their common, longitudinal marginal edges, and stitched together a substantial distance along the other of their common, longitudinal marginal edges with a remaining unstitched-together portion having a separable fastening device.Type: GrantFiled: June 12, 1979Date of Patent: December 30, 1980Inventor: Kay S. Mendyk
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Patent number: 4241467Abstract: Method and system for introducing a second queen into an established colony of honey bees for additional buildup of the worker bee force prior to the early honey flow, and for the eventual replacement of the resident queen. The established brood is divided into two divisions and placed in separate brood chambers positioned side by side with the resident queen in one division and an introduced queen in the other division. A hive chamber containing drawn comb or comb foundation is placed over each of the chambers containing brood to provide space for brood expansion. Worker bees can move vertically and diagonally among the hive chambers. The two queen bees can move either vertically or diagonally between two hive chambers in a manner which prevents direct contact between them during the brood buildup.Type: GrantFiled: June 29, 1979Date of Patent: December 30, 1980Inventor: Otis R. Pannell
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Patent number: 4241468Abstract: The disclosed shank slot dial has two equi-diameter cylindrical members each having a like plurality of axial notches equally spaced around the circumferential surface of the member. Mating helical thread means formed on the members concentrically of the notched surfaces allow for relative rotation of the members, which adjustably varies the axial spacing between the surfaces for proper support of the shanks to be fixtured in the dial. Keying means in the form of an axial grove on one member and a radially movable set screw on the other member nonrotatably hold the members at selected axial spacings and with the notches longitudinally aligned. The shank components supported in the dial thereby are abutted only at their end sections in corresponding aligned pairs of notches and bridge across at their intermediate sections the spacing between the notched surfaces.Type: GrantFiled: December 26, 1978Date of Patent: December 30, 1980Assignee: Allstar Fasteners, Inc.Inventor: Stanley C. Burchell
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Patent number: 4241469Abstract: A sheet of polishing fibers with a double polishing face used for the purpose of cleaning or polishing all kinds of metal objects, wood or other materials. It can be used with water, soap and water and also dry without becoming clogged because it allows dirt and dust to pass through it when in use. The sheet of polishing fibers is composed of two layers of polishing fibers adhered in a very particular way by means of particles of thermo-plastic material.Type: GrantFiled: October 10, 1978Date of Patent: December 30, 1980Inventor: Luis R. C. Perazzo
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Patent number: 4241470Abstract: A tool or building construction implement is disclosed for use in constructing brick work, particularly for use by a bricklayer in construction of brick walls, or other brickwork, of conventional bricks and mortar. With use of the present invention, need is eliminated for the usual mortar board and trowel. The mortar trough is semi-cylindrical in shape, containing when filled with mortar the exact amount of mortar required to prepare brick joints cleanly and with savings of mortar otherwise wasted when excessive amounts are applied. The mortar trough requires no handle, and can be used for work in crowded places, such as under an overhang, near walls, and the like. In a first method of use, rotation substantially about a longitudinal axis allows deposition of the mortar contents on the row of bricks to be built up with an additional layer. In a second method of use, the trough can be filled and tilted to permit the mortar contents to flow along the surface to be worked.Type: GrantFiled: May 3, 1979Date of Patent: December 30, 1980Inventor: John Herzig
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Patent number: 4241471Abstract: A glass-polishing apparatus is disclosed. The apparatus includes a glass polisher rotatably securable to the windshield wiper mount of a vehicle.Type: GrantFiled: February 14, 1979Date of Patent: December 30, 1980Inventor: Alfonso G. Elias
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Patent number: 4241472Abstract: A sewing machine handle is provided with depending legs which terminate in eccentric pads that are insertable in holes in the casing of the machine at the top of the bracket arm and are caused to engage the inside of the casing and support the machine when the handle is lifted.Type: GrantFiled: August 16, 1979Date of Patent: December 30, 1980Assignee: The Singer CompanyInventor: Ronald C. Iannarone
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Patent number: 4241473Abstract: An off-conveyor line meat cutting and handling apparatus is used in association with a conveyor track on which carcasses for cutting are transported; each carcass is suspended from a hook which has a yoke-member and rollers to permit travelling along the conveyor track which may be an overhead monorail track. The apparatus functions as a wayside station and has an immovable stand as well as a receiving device which has means to grip the yoke member so as not to allow movement thereof in any horizontal direction nor in a vertically downward direction. The receiving device can be swung away from the track and has a locking device holding the yoke in a locking position until released manually. For convenience, the carcass can be rotated slowly along with the hook during meat-cutting, so as to obviate the operator going around the carcass.Type: GrantFiled: February 2, 1978Date of Patent: December 30, 1980Inventor: Kaarlo Korhonen
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Patent number: 4241474Abstract: A mobile flax decorticator wherein the flax is collected in the field by passing the decorticator through the field and picking up the flax from swaths and the like, the flax straw is then decorticated by passing first through a shredder and then a decorticator, the decorticated flax is directed into a pneumatic cyclone wherein the bast fibres are separated from the dross with the bast fibres exiting through the apex outlet of the cyclone and entering into a suitable packaging equipment such as a baler.Type: GrantFiled: January 29, 1979Date of Patent: December 30, 1980Assignee: Domtar Inc.Inventor: Joseph A. M. Doutre
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Patent number: 4241475Abstract: A carding machine waste remover includes a continuously evacuated chamber containing an adjustably movable array of parallel bars immediately adjacent the surface of revolution of a rotating card cylinder. The bars are each parallel to and equidistantly spaced from the card cylinder axis of rotation. Each bar is of triangular cross section and extends along the length of the card cylinder. One edge of each triangular bar is positioned as a knife edge for stripping small particles of cotton leaf and stem or the like from the outer surface of the cotton fiber web wrapped around the card cylinder. The waste remover is located immediately above the interface area of the card cylinder and its associated doffer cylinder. The array of parallel bars is adjustably mounted between a pair of trunnions each located at respective distal ends of a pair of parallel arms having their other ends pivotally mounted to the carding machine frame.Type: GrantFiled: February 12, 1979Date of Patent: December 30, 1980Assignee: White Consolidated Industries, Inc.Inventor: Robert G. Miller
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Patent number: 4241476Abstract: A wallet guard is disclosed for use with a wallet and adapted to be used when placed in a pocket having a lower seam and a pair of side seams defining the width thereof to prevent removal therefrom. The wallet guard comprises a base at one end of the guard having a front edge and a rear edge with a support member integrally formed with the base and extending upwardly therefrom and adapted to be slipped into the wallet. A pair of arms extending upwardly from the base is provided with each arm including a lower section integrally coupled to the base and an upper section terminating in a free end. The arms are movable between an open position and a closed position. In the open position the distance between the free ends is normally greater than the width of the pocket such that the arms will be biased inwardly by the side seams when inserted into the pocket with the base adjacent the lower seam to provide the upper portion of the pocket in tension.Type: GrantFiled: June 22, 1979Date of Patent: December 30, 1980Inventors: Thomas Christenson, Francis J. Johansson
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Patent number: 4241477Abstract: There is disclosed an improved paper clip for retaining two or more pieces of paper together formed by a continuous U-shaped body having an upper wall and a lower wall being spaced apart a distance and joined at one end by a junction portion, the upper wall having a cut-out portion formed therein and having one surface thereof including an inclined surface formed therein, spring means mounted on the upper wall and recessed within the cut-out portion the spring means further including an inclined section formed integrally therewith and positioned in cooperating relation with the inclined surface of the cut-out portion such that the inclined section frictionally engages against the inclined surface, the spring means including paper piercing means formed thereon and extending downwardly therefrom in the direction of the lower wall, the spring means constructed to have an open position when retracted and a closed position when depressed, the lower wall having a receiving slot formed therein and positioned in lineType: GrantFiled: August 16, 1979Date of Patent: December 30, 1980Inventors: John Freedom, Thomas Freedom
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Patent number: 4241478Abstract: Apparatus for mechanically crimping and shrinking textile webs mainly comprises an elongated chamber through which the textile web is moved in a predetermined direction, at least two endless crimping grates arranged in said chamber and each including an endless link chain and a plurality of crimping plates projecting equally spaced from each other in a direction transverse to the chain from the latter and in which each endless chain is guided over a pair of guide rolls so that each chain has one run moving in the direction of movement of the web through the chamber and another run moving in the opposite direction. The apparatus includes further heating means having a heated smooth guide surface opposite said one run of each endless chain and said textile web is passed between the respective heated guide surface and the outer ends of the crimping plates on the one run. The chains on successive crimping plates are driven in opposite directions and preferably at speeds which can be steplessly adjusted.Type: GrantFiled: January 17, 1979Date of Patent: December 30, 1980Assignee: SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbHInventor: Siegfried Nurk
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Patent number: 4241479Abstract: Needle felt machine in which the needle beam worker arm is articulated on a supporting bearing.Type: GrantFiled: June 5, 1978Date of Patent: December 30, 1980Inventor: Richard Dilo
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Patent number: 4241480Abstract: Comb section pair of an articulating expansion comb for processing textile threads or filamentary wires, including a first and a second comb section pivotally joined together at an axis of rotation in the vicinity of an end of each comb section, a group of comb needles disposed on each comb section in a respective alignment plane, each of the comb needles being mutually spaced apart by a given comb needle division, the alignment planes intersecting at the axis of rotation, the axis of rotation extending exclusively through the comb needle group of the first comb section, a last comb needle of the comb needle group on the first comb section being disposed at least one comb needle division beyond the axis of rotation toward the end of the first comb section, a first comb needle disposed closest to the end of the second comb section being at most one comb needle division farther from the axis of rotation than the last comb needle of the first comb section.Type: GrantFiled: July 23, 1979Date of Patent: December 30, 1980Assignee: W. Schlafhorst & Co.Inventors: Helmut Wiedenfeld, Peter Reinardy
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Patent number: 4241481Abstract: A method and apparatus for connecting harness cords to the heddles which are eventually to be used in a weaving machine. A harness cord is threaded through an upper eyelet of the heddle and is turned back on itself with the connection being fixed by a shrink hose which is shrunk over the eyelet, thereby clamping the harness cord to the upper eyelet. An apparatus is movably mounted on an assembly frame between the various harness assemblages. At each location on the frame, the apparatus holds the free end of the harness cord after it has been threaded through the eyelet on the heddle. A friction brake is utilized to hold the free end of the harness cord while the apparatus effects a tightening of the harness cord and a drawing of the eyelet into the unshrunk shrink hose. A cutting mechanism is provided to sever the harness cord between the eyelet and the friction brake.Type: GrantFiled: September 21, 1978Date of Patent: December 30, 1980Assignee: Staeubli Ltd.Inventor: Otto Mueller
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Patent number: 4241482Abstract: A deflection compensating press roll is disclosed in which a stationary axial support beam has a roll shell mounted for rotation thereabout and a plurality of hydrostatic support elements provide support along the length of the roll. The support elements include a support shoe having a bearing surface which cooperates with the inside of the roll shell and a piston joined to the support shoe which includes a cylindrical tube having generally constant inside and outside diameters.Type: GrantFiled: February 23, 1978Date of Patent: December 30, 1980Assignee: Escher Wyss LimitedInventor: Mario Biondetti
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Patent number: 4241483Abstract: A method of making a drill bushing or a similar article, such as a pump seal, the method including metallurgically bonding tungsten carbide within a matrix to the steel blank by treating the combination in a vacuum, hydrogen, salt bath or other heating medium, making a suitable central opening, where required, in the tungsten carbide, heat treating and finishing the piece to the proper dimensions.The method of making such articles also includes metallurgically bonding tungsten carbide particles within a matrix which is also metallurgically bonded to a steel body, making a suitable opening, where necessary, leaving a thin coating of matrixed tungsten carbide to improve resistance to wear, heat and corrosion and then finishing the piece to the proper dimensions.The method may include metallurgically bonding tungsten carbide particles within a matrix bonded to a steel body while under the influence of forces tending to eliminate voids in the completed coating of matrixed tungsten carbide.Type: GrantFiled: May 7, 1979Date of Patent: December 30, 1980Assignee: Eastern Fusecoat IncorporatedInventor: Edward J. Voitas
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Patent number: 4241484Abstract: A compact pump and motor assembly adapted for use as a fuel controller for an internal combustion engine fuel metering system. The assembly contains an electric motor, an interface housing assembly at one end of the electric motor and a pump housing assembly disposed on the side of the interface housing assembly opposite that of the motor. The motor shaft extends through the interface housing into a pilot hole in the pump housing and drives a pumping means contained within a pumping chamber defined by the pump housing and the interface housing. An inlet port, an outlet port, and a return port are provided in the pump housing. An inlet passage extends from the inlet port through the gear pump housing and the interface housing into a vapor separation chamber contained within the casing of the motor, the motor being of the wet type. A passage in the interface housing extends from the vapor separation chamber to the inlet of the pumping chamber.Type: GrantFiled: November 7, 1978Date of Patent: December 30, 1980Assignee: Chrysler CorporationInventor: Kenneth A. Graham
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Patent number: 4241485Abstract: A method of manufacturing a chemical oxygen generator using two plates and a chemical substance which produces oxygen through a chemical reaction and an isostatic pressing device, comprising, forming at least one depression between two flat portions of each plate, placing the plates together by superimposing their flat surfaces together in the isostatic press, and arranging their depressions so that they oppose each other, and filling the depressions with the chemical by inserting the chemical axially into the depression and deforming the plates by pressing the pressing device to close the depressions along the flat surfaces at each end and to compress the chemical within the depressions. The invention construction advantageously includes plates having two sets of depressions or one continuous serpentine depression in each plate, which are arranged in mirror orientation and closed at one end and contain an ignition device for the chemical at the opposite end.Type: GrantFiled: December 14, 1978Date of Patent: December 30, 1980Assignee: Dragerwerk AktiengesellschaftInventor: William S. McBride
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Patent number: 4241486Abstract: A reversing valve construction having a housing provided with a chamber carrying a movable piston-like valve member therein that controls ports of a valve seat of the housing through the relative position of a passage of the valve member relative to the ports. A one-piece flexible sealing skirt is carried by the valve member and extends outwardly therefrom in a cantilevered manner adjacent the valve seat means so as to be adapted to be exposed to fluid pressure in the chamber that will act directly thereon and cause the flexible skirt to flex and engage the valve seat means in a manner to tend to sealingly conform to the contour of the valve seat means and thereby seal the passage means of the valve member to the valve seat means while permitting sliding movement therebetween.Type: GrantFiled: April 30, 1979Date of Patent: December 30, 1980Assignee: Robertshaw Controls CompanyInventor: Werner R. Bauer
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Patent number: 4241487Abstract: A disposable screen and spline installation tool for use to install screen material in a frame having a groove around one side edge which holds the screen peripherally with the aid of a retainer spline, the tool being a unitary body of elongate form having at a first end a first disc-like operator member with an arc-shaped edge which is convex in cross-section for forming a channel of the screen material in the frame groove, and at a second end a second disc-like operator member with an arc-shaped edge which is concave in cross-section for setting a spline into the channel.Type: GrantFiled: January 29, 1979Date of Patent: December 30, 1980Inventor: Richard A. Kraver
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Patent number: 4241488Abstract: There is disclosed a technique for tightening threaded fasteners in which values of offset torque, initial tension rate relative to angle, final tension rate relative to angle and other joint related factors are empirically determined by instrumenting a plurality of fasteners of the type ultimately to be tightened. In one embodiment, torque and angle are monitored during tightening. Calculations are conducted, while tightening, to determine the tension prevailing in the bolt at a particular angle of advance. By using the calculated tension value and the particular angle of advance, an instantaneous position of threading advance on the tension-angle curve of the fastener is established. From this instantaneous position, it is determined how much greater angle of advance or how much torque is required to tighten the fasteners to a final desired tension value. The same technique may also be used merely to monitor tightening which is terminated by a different tightening strategy.Type: GrantFiled: April 19, 1979Date of Patent: December 30, 1980Assignee: Rockwell International CorporationInventor: Siavash Eshghy
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Patent number: 4241489Abstract: Gapping of slide fastener tapes is performed by cutting longitudinal connecting and supporting members carrying fastening elements on both sides of each element to be removed along perpendicular cutting lines. The fastening elements are then removed by pulling the fastening elements and the severed ends of the connecting and supporting members from between loops of weft threads which secure the connecting and supporting members in the inner edges of the tapes.Type: GrantFiled: May 21, 1979Date of Patent: December 30, 1980Assignee: Textron Inc.Inventor: Harry F. Manning
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Patent number: 4241490Abstract: A method of applying a metal sleeve to a concrete reinforcing bar by introducing between opposed surfaces of the sleeve and the bar, particles having a hardness greater than that of the bar and the sleeve and then compressing the sleeve on to the bar with a sufficient force to cause the particles to bite into and grip both the bar and the sleeve.The metal sleeve may be provided as having on its internal surface particles of the foregoing properties. The swaged connection is achieved by carrying out the foregoing method. The invention also contemplates a concrete reinforcing bar with the swaged connection.Type: GrantFiled: May 12, 1977Date of Patent: December 30, 1980Assignee: CCL Systems, LimitedInventor: Hugh J. W. Edwards
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Patent number: 4241491Abstract: An improved locking type spark plug gasket in which the locking lugs are of such configuration as to lie within the vertical height of the sealing folds of the gasket. The configuration especially adapts it to receive a synthetic resinous coating applied after manufacture, and facilitates installation on that type of spark plug having an undercut area at the base of the threaded shank portion thereof.Type: GrantFiled: May 4, 1979Date of Patent: December 30, 1980Inventor: Harold P. Hopp
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Patent number: 4241492Abstract: The present invention concerns a method of manufacture of valve seats which comprises forming a series of vertically stacked molds each having at least one mold cavity with a configuration approximating that of a ring-shaped valve seat insert blank. After the molds are formed, they are stacked and the cavities are connected by a common molten metal passageway in such a way that the passageway connects with an axially facing outer surface of each mold cavity to provide a lap gating relationship. Molten metal is then poured into the lap gated passageway to form a series of valve seat insert blanks each having a gate formed on an axially outer face. The blanks are then removed from the molds. Various grinding operations are then applied to the blanks and the axially outer-facing surfaces of the blanks are ground to remove the gates to form valve seats for use in internal combustion engines.Type: GrantFiled: December 21, 1978Date of Patent: December 30, 1980Assignee: Wells Manufacturing CompanyInventor: Arthur S. Hedberg
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Patent number: 4241493Abstract: The solar cell module of this invention is fabricated by placing an array of solar cells in a suitable mold having a bottom surface, an entry port and an exit port. A light transparent superstrate effectively serves as the top for the mold and is placed over the array of solar cells in the mold. The superstrate is spaced from the array such that the superstrate does not come in contact with the top surface of any of the cells or interconnectors of the solar cell array. Clamp means are provided to hold the superstrate in position while encapsulant is pumped into the mold under pressure through the inlet port in an amount sufficient to fill the mold. Thereafter the assembly can be placed in an oven and heated for a time sufficient to cure the encapsulant and bond the materials to each other.Type: GrantFiled: December 22, 1978Date of Patent: December 30, 1980Inventors: William B. Andrulitis, Steven G. Miles, William T. Kurth
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Patent number: 4241494Abstract: A method of assembling an electrical device. In this method, a contact plate for a PTCR is disposed exteriorly of a casing therefor, and extensions on the contact plate are deformed into releasable securing engagement with the casing exteriorly thereof.Type: GrantFiled: November 13, 1978Date of Patent: December 30, 1980Assignee: General Electric CompanyInventor: Lee O. Woods
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Patent number: 4241495Abstract: A method and apparatus for disassembling wooden pallets is disclosed. The pallet disassembling apparatus includes a working table for supporting a pallet in an upright position for disassembly. The slats are detached from the ribs of the pallet to which they are nailed or similarly fastened by means of a plurality of cutting assemblies which are positioned such that one cutting assembly corresponds with each rib of the pallet. The cutting assemblies are carried by a cross head which is driven in a vertical path to bring each cutting assembly into engagement with each slat fastened to its corresponding rib. Each cutting assembly includes a pair of opposing plates having sharp edges for partly separating a slat from its corresponding edge of the rib to thereby create between them a gap wherein a portion of the nail or fastening member used to secure this slat to its corresponding edge of the rib is exposed.Type: GrantFiled: January 19, 1979Date of Patent: December 30, 1980Inventor: Dale Wakeem
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Patent number: 4241496Abstract: A hand held termination tool which is used in conjunction with a termination blade for connecting conductor wires to terminals on a termination block has a handle within which is disposed a hammer assembly. A slide assembly is mounted in the handle yieldably urged to a position extending from one end thereof and disposed to receive an impact blow from the hammer assembly when forced inwardly from the extended position a predetermined distance. The hammer assembly includes a drive spring providing the force for the impact. A drive spring seat member supports one end of the drive spring and is movable between an extended and a retracted position, thereby providing a short compressed drive spring length in the extended position and a longer compressed drive spring length in the retracted position. A cam adjustable to either one of two positions selects either the short or longer compressed lengths for the drive spring and thereby a high or a low impact force respectively.Type: GrantFiled: March 23, 1979Date of Patent: December 30, 1980Assignee: Dracon IndustriesInventor: Donald L. Gregson
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Patent number: 4241497Abstract: A method and apparatus for trimming soldered printed circuit board component leads to a uniform finished height. The leads are pre-trimmed prior to soldering to an intermediate length long enough such that when inserted into the board the leads will possess a desired degree of mechanical security, while short enough to permit even abrasive trimming. A driven abrasive surface is passed across the soldered leads and the leads are then trimmed to a uniform finished height.Type: GrantFiled: January 11, 1979Date of Patent: December 30, 1980Assignee: The Singer CompanyInventor: Edward F. Du Bois
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Patent number: 4241498Abstract: There is provided a device and method for terminating a flat cable having at least one elongated substantially rectangular insulated conductor by punch and die action. The device includes opposing semi-cylinderical metallic jaws which may be attached to and aligned with one another through a tab. The curved portion of each jaw is in the form of alternating grooves and lands with the grooves of one jaw adapted to receive corresponding opposing lands of the other jaw when the cable is terminated. To terminate the cable, the insulated conductor is placed between the aligned jaws and inward force is applied on the back sides of the jaws forcing the lands into the grooves. The cable insulation is pierced and adjacent portions of the conductor are elongated and sheared by the meshing of the grooves and lands, much like a punch and die process, forming embossed strips on the conductor.Type: GrantFiled: February 5, 1979Date of Patent: December 30, 1980Assignee: Akzona IncorporatedInventor: Edward P. Brandeau