Patents Issued in November 17, 1981
  • Patent number: 4300255
    Abstract: A foot flipper device for use on the leg of a swimmer. The foot flipper device comprises a shoe having front, heel and median portions; and a fin of variable inclination. The fin has a longitudinal cross-section of generally double curvature.
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: November 17, 1981
    Inventor: Georges Beuchat
  • Patent number: 4300256
    Abstract: Clog-type shoes are produced by combining foamed polymeric soles with conventional vamps by interposing selected adhesives and application of pressure and heat to the assembled clog-type shoe.
    Type: Grant
    Filed: August 31, 1979
    Date of Patent: November 17, 1981
    Assignee: R. G. Barry Corporation
    Inventor: Arthur Laganas
  • Patent number: 4300257
    Abstract: An apparatus for cleaning surfaces, particularly both vertical surfaces, of a plug of a coke oven door. The apparatus has a pair of rotary scrapers adapted to be moved up and down in contact with both vertical surfaces of the plug. Each rotary scraper incorporates a screw type cutter for a higher cleaning efficiency. In order to facilitate the precise location of the coke oven door in relation to the scrapers, the cleaning apparatus further has a door holding device adapted to receive the coke oven door at a position in front of the scrapers and to convey the same to the cleaning position. Also, the cleaning apparatus has a scraper cleaning device adapted for fitting the spiral groove of each scraper to move along the latter as the scraper is rotated, thereby to remove tar or the like deposits from the spiral groove of the scraper.
    Type: Grant
    Filed: April 25, 1980
    Date of Patent: November 17, 1981
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventors: Kazuhiko Ibe, Kenji Fujita
  • Patent number: 4300258
    Abstract: A pad-type painting applicator of the type having a handle and a replaceable applicating pad includes a simplified design for use in either of two paint applying modes and an improved mechanism for removably mounting applicating pads. A relatively short handle gripping portion is secured to an enlarged base, which mounts the replaceable applicating pad, for use when painting areas close within reach of the painter and where the painter can easily move the tool in strokes generally parallel to the surface on which the paint is being applied. A threaded aperture or short cylindrical portion is provided in the base at an angle with respect to the handle gripping portion for use in conjunction with an elongated extension pole that may be secured to the tool to enable normally inaccessible areas or surfaces to be reached. A flexible tab on the base secures a slideably mounted applicating pad generally in the center thereof.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: November 17, 1981
    Assignee: E Z Paintr Corporation
    Inventors: Fredrick B. Burns, Richard J. Shaw
  • Patent number: 4300259
    Abstract: A device for connecting the superstructure of a wiper blade in side-by-side relationship to a wiper arm. The device comprises a pin which extends through both the superstructure and the wiper arm and has an enlarged portion on one end of the pin operable to limit longitudinal and to prevent rotational movement of the pin relative to the superstructure of the wiper blade. The device also includes a member which is at least partially supported by a portion of the pin outside the wiper arm with a second member resiliently urging the wiper arm toward the superstructure. The superstructure acts as a stop limiting the relative movement of the wiper arm in the direction of the superstructure.
    Type: Grant
    Filed: June 20, 1979
    Date of Patent: November 17, 1981
    Assignee: ARMAN S.p.A.
    Inventor: Guiseppe Maiocco
  • Patent number: 4300260
    Abstract: A magnetic pick up attachment for vacuum cleaners includes an elongated strip of magnetized material adapted to overlie, connect to and depend from the front face of a vacuum cleaner housing.
    Type: Grant
    Filed: November 26, 1979
    Date of Patent: November 17, 1981
    Inventor: Claudette D. Hill
  • Patent number: 4300261
    Abstract: A vacuum cleaning apparatus using a hood forming a travelling vacuum chamber with an optimum combination of jet stream means and suction nozzle means. The jet stream means includes a plurality of orifices that are generally directed toward the intake of a suction nozzle means so as to cause the soil on the surface to be cleaned to become airborne before being acted upon by the suction nozzle means. A combined motor and air compressor is mounted in the hood means for furnishing compressed air to the jet stream means. The motor may also drive a rotating brush which may be interposed between the jet stream means and the suction nozzle means.
    Type: Grant
    Filed: August 15, 1980
    Date of Patent: November 17, 1981
    Assignee: Robert E. Robbins
    Inventors: James C. Woodward, Marion D. Holland
  • Patent number: 4300262
    Abstract: An air-powered vacuum cleaner floor tool and an air turbine therefor are provided. The floor tool comprises a housing with a rotary agitator mounted on the bottom thereof, and a wand connector means mounted on the rear thereof and aligned with the longitudinal center of the housing. The wand connector is used for connecting the floor tool to a vacuum cleaner wand. The air-powered turbine motor has a turbine chamber and a rotor mounted on the housing, with the turbine chamber having an air inlet and an air outlet. The air inlet is aligned with the longitudinal center of the rotary agitator, and the air outlet is aligned with the longitudinal center of the housing and with the wand connector. The air outlet includes an outlet opening in the turbine chamber. The angle which is formed by the center line of the air inlet of the air-powered motor, and the center line of the outlet opening of the turbine chamber, is less than 55.degree..
    Type: Grant
    Filed: November 28, 1979
    Date of Patent: November 17, 1981
    Assignee: Black & Decker Inc.
    Inventors: Stanley J. Rodowsky, Jr., Donald B. Morgan
  • Patent number: 4300263
    Abstract: The invention concerns a process for the mechanical opening of the bloodstream of flat-fish, the application of which has the aim of the bleeding of the fish. The apparatus proposed for this is equipped with a rotatably driven knife sleeve, which is sharpened at its end side and which is constructed to be lowered onto an aligned flat-fish lying flat therebeneath, and at its circumference carries tearing elements extending radially in the proximity of the cutting edge. The tool, penetrating into the abdominal cavity during lowering while separating circular area portions out of the oppositely disposed abdominal walls, tears open the bloodstream disposed at the underside of the spinal column by means of the radial tearing elements.
    Type: Grant
    Filed: February 5, 1980
    Date of Patent: November 17, 1981
    Assignee: Nordischer Maschinenbau Rud. Baader GmbH & Co. K.G.
    Inventor: Klaus Gotz
  • Patent number: 4300264
    Abstract: A high pressure and velocity water drive pipe is provided having inlet and outlet ends. The outlet end of the drive pipe extends and is secured horizontally through one side of a generally cylindrical tank and terminates between 2 and 31/2 inches from the inner surface of the opposite side of the tank. The tank includes a lower gravity outlet having an effective cross-sectional area appreciably more than the effective cross-sectional area of the drive pipe outlet end and the drive pipe includes structure defining a venturi zone therein into which the outlet end of a seafood meat supply line opens.
    Type: Grant
    Filed: February 22, 1980
    Date of Patent: November 17, 1981
    Inventor: Harold C. Carlson
  • Patent number: 4300265
    Abstract: Break-up roller with card clothing for an open-end spinning frame including a base member, and an inherently stable, exchangeable ring carrying the card clothing and lockingly connected to the base member.
    Type: Grant
    Filed: November 27, 1978
    Date of Patent: November 17, 1981
    Assignee: Reiners & Furst
    Inventor: Helmut Heinen
  • Patent number: 4300266
    Abstract: The invention relates to flats as used in carding machines in which there is a releaseable component at one or each end, this component having a surface for frictional engagement on the carding machine and the component being self-retaining on the flat. Spring clip type components are described and there is also a flat made as an extrusion with end parts machined off to adapt the flat to receive the releaseable components.
    Type: Grant
    Filed: September 13, 1979
    Date of Patent: November 17, 1981
    Assignee: The English Card Clothing Company Limited
    Inventors: Keith Grimshaw, Brian J. Ennis
  • Patent number: 4300267
    Abstract: A total fiber recovery method and apparatus are disclosed which will recover substantially all of the usable fiber contained in discarded waste material comprising a mixture of fibers, motes and trash. The method consists of conveying the input material into a cleaner and opener which rejects a large portion of the heavy trash and motes. The remaining fiber is transported into a lint cleaner which drops out more motes and smaller trash. From there the partially cleaned fiber is transported to a first cleaner and carder which will clean and orient the fiber. The trash and motes rejected by the cleaner and opener, the lint cleaner, and the first cleaner and carder are collected and cleaned in a drum screen cleaner to remove the heavy trash. The partially cleaned fiber is then transported into a carder and opener where the fibers, including the motes, are fully opened. The opened fiber is then transported to a second cleaner and carder for cleaning and orienting.
    Type: Grant
    Filed: February 6, 1980
    Date of Patent: November 17, 1981
    Assignee: Cotton, Incorporated
    Inventors: Allen R. Winch, Joseph K. Jones
  • Patent number: 4300268
    Abstract: A single paper clip is capable of separately holding two different sheafs of papers. It is formed of a continuous length of wire successively bent into a series of re-entrant loops interspersed with six legs. One sheaf of papers may be secured between a first and third loop, and a second sheaf is thereafter secured between a third and fifth loop.
    Type: Grant
    Filed: June 10, 1980
    Date of Patent: November 17, 1981
    Inventor: Michael A. Wilson
  • Patent number: 4300269
    Abstract: A device for locking one or more cords or other flexible elements against longitudinal movement, and including two members interconnected for relative pivotal movement between locking and released positions, with one of the members having a portion which is slightly laterally deflectible upon assembly of the device to permit movement of a pivot lug into a pivot recess to form the pivotal connection between the members, and with the other member having an interlocking projection which in the locking relative position of the members blocks lateral movement of the deflectible portion of the first member to prevent disassembly of the parts in that locking position.
    Type: Grant
    Filed: February 19, 1980
    Date of Patent: November 17, 1981
    Inventor: Ogden W. Boden
  • Patent number: 4300270
    Abstract: The housing for the screw of a hose clip has a tubular section with a flat bottom wall a portion of which extends laterally beyond the tubular section and is overlapped by a plate-like second portion forming part of and being inclined with reference to a side wall of the tubular section. When the screw is rotated in a direction to tension the band which is placed around a hose, pipe or a like structure, the screw tends to move the extension toward such structure. The extension is or can be hollow to receive parts of the overlapping end portions of the band. Reinforcing ribs are provided at the outside of the housing between the side wall of the tubular section and the extension. The housing is made of a sheet metal blank which is deformed to form the tubular section and the two portions of the extension, and such portions of the extension are thereupon welded to each other.
    Type: Grant
    Filed: December 4, 1979
    Date of Patent: November 17, 1981
    Assignee: Rasmussen GmbH
    Inventor: Heinz Sauer
  • Patent number: 4300271
    Abstract: A clamping device for a sliding mount, particularly a dove-tail mount, in which a guide projecting from a slide clock is slidably mounted in a guide groove of a guide body. The clamping device includes a slot in the guide body extending parallel to the guide groove and defining a clamping part between the slot and the groove which can be pressed against the guide. A cavity, in which a bolt is located, is provided in the guide body such that the upper end of the bolt is within the unslotted part of the guide body and the lower end of the bolt is adjacent said clamping part. A clamping screw extends within a threaded bore in the body and is arranged to displace the bolt such that the lower end of the bolt presses against the clamping part whereby the slide block is clamped relative to the groove.
    Type: Grant
    Filed: August 29, 1980
    Date of Patent: November 17, 1981
    Assignee: Emil Wohlhaupter & Co.
    Inventor: Gerhard Wohlhaupter
  • Patent number: 4300272
    Abstract: Disclosed is a semi-automatic processing system for the production of components requiring the deposition of metallization and assembly in an oil free ultra-high vacuum environment. The system is comprised of a plurality of interconnected tubular high vacuum chambers for separately performing ultra-violet cleaning, bake out, plating and sealing of, for example, quartz crystal resonator units, in an in-line configuration adapted for continuous cycle processing of components. The major elements of the system include: (a) a belt type transport which is adapted to convey one or more components through the respective chamber and into an adjoining chamber through an intermediate gate valve; (b) manipulators for handling the component parts inside the vacuum chambers; (c) long life highly directional evaporation sources for evaporated metal deposition on selected component parts; and (d) a sealing apparatus for hermetically sealing the components after evaporation without exposure to atmosphere.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: November 17, 1981
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Erich Hafner, Robert J. Ney
  • Patent number: 4300273
    Abstract: A laminated spacer plate (10) for engines, pumps and the like comprises a plurality of metallic sheets (11-14), each having openings (15,16,17,24,40) preformed therethrough and secured together. The preforming of the openings through the individual sheets facilitates intercommunication of certain of the openings with passages formed within the spacer plate and eliminates the need for costly machining and related manufacturing operations normally required for the fabrication of a one-piece spacer plate.
    Type: Grant
    Filed: November 19, 1979
    Date of Patent: November 17, 1981
    Assignee: Caterpillar Tractor Co.
    Inventor: David A. Lockhart
  • Patent number: 4300274
    Abstract: A method of manufacturing a connecting rod for reciprocating piston engines, especially axial cylinder-type reciprocating piston engines, with the connecting rod including a tubular shaft having hollow spherical shells mounted at the ends thereof. The tubular shaft and the hollow spherical shells are constructed from a sheet metal-like material and are joined to form a one-piece connecting rod body by way of welding joints. A lubricating tube is arranged within the tubular shaft and extends between the spherical shells so as to equalize the lubricant between surfaces of the hollow spherical shells.
    Type: Grant
    Filed: October 31, 1979
    Date of Patent: November 17, 1981
    Inventor: Hermann Papst
  • Patent number: 4300275
    Abstract: A radiant energy collecting/emitting element, including an absorber plate with a cylindrical bore through which a tool comprising a mandrel having lands is drawn to form helical grooves. A tube formed of a ductile metal dissimilar to the plate metal is placed within the bore and a second tool is then drawn through the tube. The second tool has an outer diameter greater than the inner diameter of the tube so that the tube is radially expanded outwardly into intimate surface contact with the bore. During expansion the material of the tube cold flows into the grooves to form lands which lock the tube against displacement relative to the plate.
    Type: Grant
    Filed: January 12, 1979
    Date of Patent: November 17, 1981
    Assignee: General Thermal Corporation
    Inventor: Jay C. McLaughlin
  • Patent number: 4300276
    Abstract: Apparatus for inserting a flexible plastic pipe into an old, larger size pipeline system. A lower roller assembly has at least one lower roller which engages and supports the flexible pipe adjacent the receiving end of the larger size pipe and an upper roller assembly has at least one upper roller which engages the upper surface of the flexible pipe opposite the lower roller. An actuator imparts relative movement between the upper and lower roller assemblies selectively toward and away from each other so that the upper and lower rollers are in driving engagement with the flexible pipe upon movement of the roller assemblies toward each other. A drive unit rotates the upper and lower rollers in a direction to push the flexible pipe into the larger size pipe while the rollers are in driving engagement with the flexible pipe.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: November 17, 1981
    Inventor: Johnny L. Davis
  • Patent number: 4300277
    Abstract: A tube pressure filter is provided with a filter element comprising a filter cloth sleeve which is tailored from a woven material so that the warp and/or weft filaments extend helically around the inner tubular body on which the filter element is supported whereby the filter cloth sleeve can be stretched transversely of the length thereof.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: November 17, 1981
    Assignee: English Clays Lovering Pochin & Company, Ltd.
    Inventor: Norman O. Clark
  • Patent number: 4300278
    Abstract: A tool exchanger wherein an exchange arm fixed on one end of a rotatable and axially slidable shaft is formed with a pair of semi-circular openings at opposite ends thereof. A pair of gripping plungers slidably received in the exchange arm are spring-biased toward opposite ends of the arm for gripping tools held in the semi-circular openings. A pair of guided pins are protruded respectively from the gripping plungers. A cam engageable with the guided pins is disposed in position to inwardly retract either of the gripping plungers which approaches a tool socket of a tool magazine, against the force of an associated bias spring, when the exchange arm is pivoted from a parked position toward a grip position for gripping tools received respectively in a machine tool spindle and the tool socket.
    Type: Grant
    Filed: October 25, 1979
    Date of Patent: November 17, 1981
    Assignee: Toyoda Koki Kabushiki Kaisha
    Inventors: Kenji Nomura, Akira Tsuboi, Kunimichi Nakashima
  • Patent number: 4300279
    Abstract: Production of high bit density memory cells using six selective, vertically aligned, reactive plasma etching steps. A gate oxide layer is applied to the boundary surface of the semiconductor layer and has a polysilicon layer which is highly doped and covered with a first intermediate oxide layer. A drive line and the gate are first formed. Sections of the drive line at the ends thereof are removed by isotropic etching and the resulting recesses are filled in a thermal oxidation step. The portion of the gate oxide layer adjacent the structured parts is removed by a second etching step. A second polysilicon layer is deposited, highly doped and covered with a second intermediate oxide layer. Another drive line having a part contacting a doped region in the semiconductor layer, the region being formed by ion implantation, is structured by a third etching step.
    Type: Grant
    Filed: July 16, 1980
    Date of Patent: November 17, 1981
    Assignee: Siemens Aktiengesellschaft
    Inventor: Armin Wieder
  • Patent number: 4300280
    Abstract: An axially compact hair dryer includes a cylindrical outer housing 1, an air outlet 2 at one end of the housing, an air inlet grate 3 at the other end, an electric motor 4 centrally mounted within the housing and driving a blower fan 5, and a generally cylindrical electric heating element 7 disposed in the otherwise wasted annular space between the motor and the housing.
    Type: Grant
    Filed: March 25, 1980
    Date of Patent: November 17, 1981
    Assignee: Braun A.G.
    Inventors: Rudolf Majthan, Rolf Stuhler, Raymond G. Parsonage, Charles C. Packham
  • Patent number: 4300281
    Abstract: A fusible element for electric fuses capable of combining time-lag in the range of overload currents with current-limiting action for currents in the range of short-circuit currents. The fusible element comprises a relatively wide perforated center section and axially outer heat dam sections. The center section has points of reduced cross-section imparting to it a predetermined fusing i.sup.2 .multidot.t. The center section of the fusible element is folded in a direction longitudinally thereof to effect mutual heating of the portion, or portions, thereof to different sides of the fold, or folds. This allows to increase the mass of the center section and results in an increase of time-lag. Relatively narrow heat-dam-strip sections extend from the ends of said center section. The fusing i.sup.2 .multidot.
    Type: Grant
    Filed: January 29, 1980
    Date of Patent: November 17, 1981
    Assignee: Gould Inc.
    Inventor: Robert J. Panaro
  • Patent number: 4300282
    Abstract: An electrically operated tool is disclosed for inserting one or more insulated electrical wires into a barrel shaped, slotted terminal. A modified solenoid provides a hammer action power stroke which is initiated by partially retracting the toolhead inwardly of the tool upon movement of the tool against the barrel terminal. A trigger circuit applies line voltage to the solenoid windings, saturating the core, to provide rapid power stroke, so that the solenoid armature hammers against a strike plate of the toolhead. The trigger circuit includes a high and low power adjustment.
    Type: Grant
    Filed: August 16, 1979
    Date of Patent: November 17, 1981
    Assignee: AMP Inc.
    Inventors: John R. Bunyea, Jess B. Ferrill, Ray A. J. Hutchinson, Ronald G. Sergeant
  • Patent number: 4300283
    Abstract: A pair of continuous slide fastener stringers is longitudinally fed by longitudinally reciprocable grip means and driving roller means that is selectively actuatable. As the slide fastener stringers are advanced, one of the stringers is threaded through a slider held fixedly in its path of travel. The slide fastener stringers are cut off transversely across element-free gaps, and then the severed stringer pieces are moved forwardly until their leading end portions are positioned in a molding device, which molds a separable end stop on the leading end portions. The driving roller means is continuously driven to advance the slide fastener stringers until element-free gaps arrive at the cutter means, whereupon the driving roller means is de-energized.
    Type: Grant
    Filed: December 21, 1979
    Date of Patent: November 17, 1981
    Assignee: Yoshida Kogyo K.K.
    Inventor: Minoru Ueda
  • Patent number: 4300284
    Abstract: To organize and electrically terminate both ends of a plurality of wires, an apparatus comprising an array of interconnected, substantially parallel passageways is placed over the wires proximate to the first ends of the wires. The first ends of the wires are electrically terminated, and then the array is slid along the wires toward the second ends thereof for organizing the wires. The second ends of the wires are then electrically terminated.
    Type: Grant
    Filed: December 15, 1978
    Date of Patent: November 17, 1981
    Assignee: Raychem Corporation
    Inventor: Larry R. Reeder
  • Patent number: 4300285
    Abstract: A safety razor having a retractable blade member. The safety razor has a platform integral with the handle portion of the razor and provided with a recess formed in the upper surface thereof, a blade support member movably received by the recess of the platform, a blade member provided with front cutting edge and secured to and supported by said blade support member so as to project forwardly from the latter, a cover member fixed to the platform and cooperating with the latter in movably holding therebetween the blade support member together with the blade member, and apparatus for moving the blade member between a first position where the cutting edge is fully retracted and disappears behind the cover member and a second position where the cutting edge is fully extended. The cover member and the platform cooperate with each other in defining therebetween an elongated opening through which the cutting edge is moved in and out as the blade supporting member is moved by the above-mentioned apparatus.
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: November 17, 1981
    Assignee: Kai Cutlery Center Co., Ltd.
    Inventor: Saijiro Endo
  • Patent number: 4300286
    Abstract: A coring machine particularly designed for coring frankfurters or other similar food substances. The corer as utilized herein contemplates a housing for receiving the frankfurters, a cylindrical guide and a cutting tool. The guide is attached to the housing in a fixed relationship and in operation, the cutting tool is inserted into the cylindrical guide and in and through the frankfurter for coring out a center portion of the frankfurter. The same housing may then be utilized for filling the frankfurter with a suitable filling material.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: November 17, 1981
    Inventor: George Panchula
  • Patent number: 4300287
    Abstract: A tool for use in removing the outer sheet metal skin of an automobile door. The tool includes an elongated body having a generally longitudinal axis. A shank is located at one end of the body for connection to a reciprocating apparatus such as an air hammer. A cutting portion is located at the opposite end of the elongated body. The cutting portion of the tool includes a somewhat flattened area extending from the end of the tool. A pair of fingers are located at the cutting end of the tool and project outwardly from the flattened area side of the body. The fingers extend generally at right angles to the longitudinal axis of the body and are spaced apart a sufficient distance to straddle the outer edge of an automobile door to guide the tool during cutting. A narrow cutting tooth is formed on the flattened area of the cutting portion of the tool and is positioned to engage the edge of the automobile door when the fingers are straddling the edge.
    Type: Grant
    Filed: September 8, 1980
    Date of Patent: November 17, 1981
    Inventor: Larry T. Tibbs
  • Patent number: 4300288
    Abstract: A can opener has a first flat member provided with two open slots spaced from one another in direction of elongation, and a second member having two oppositely facing cutting edges so that the can opener can be used by both left-handed persons and right-handed persons. The members are separate and connected with one another by connecting unit which allows their movement between unfolded operative position and folded inoperative position. The connecting unit is arranged between the cutting edges. A unit preventing an unintentional movement of the members from the inoperative position is also provided.
    Type: Grant
    Filed: December 17, 1980
    Date of Patent: November 17, 1981
    Inventors: Ayzik Blyakharov, Joseph S. Kagantsev
  • Patent number: 4300289
    Abstract: A hook end for attachment to the free end of a graduated measuring tape, especially adapted to replace a broken free end.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: November 17, 1981
    Inventor: Robert J. DeHaven
  • Patent number: 4300290
    Abstract: A device for checking the verticality of a wall includes a square plate with a side length somewhat longer than the diameter of a frusto-conical plumb-bob. A plumb line has one end connected to the plumb-bob, and the other end passed through an opening in the plate so that the user can grasp the excess line in his hand as he holds the plate with his other hand such that it can be tilted relative to the horizontal and/or the line used to raise and lower the plumb-bob as required to check for verticality of the walls surface.
    Type: Grant
    Filed: April 29, 1980
    Date of Patent: November 17, 1981
    Inventor: Leon Zalewski
  • Patent number: 4300291
    Abstract: A method and apparatus are provided for heating and/or drying particulate materials such as coal wherein the particulates are fed into a direct heating fluidizing chamber, carried in a stream of heated oxygen-free gas at a temperature sufficiently high to heat the particles to a preselected temperature. The particles are then removed from the gas stream at the preselected temperature and then the gas is reheated in a heat exchanger and recycled. Where the particulate material to be dried yields a vapor, such as steam, the vapor is used as the transport or fluidizing gas. Means are provided for removing and/or condensing such vapor beyond the amount needed for fluidization.
    Type: Grant
    Filed: March 17, 1980
    Date of Patent: November 17, 1981
    Assignee: Salem Corporation
    Inventors: Harold Heard, Charles R. Wilt
  • Patent number: 4300292
    Abstract: A rotatable drum apparatus for use with a drying kiln or a dry grinding mill has a large gear wheel secured to the periphery of the drum, the drum being heated. In order to minimize the generation of undue stresses between gear wheel and drum due to thermal gradients, the apparatus includes a stationary heat shield extending about the gear in thermal stabilizing relation therewith. The arrangement includes air pressurization within the shield and seal means between stationary and rotary components, to limit the loss of heated air from the enclosure, and to preclude the ingress of air and foreign particles into the enclosure.
    Type: Grant
    Filed: February 7, 1980
    Date of Patent: November 17, 1981
    Assignee: Dominion Engineering Works Limited
    Inventors: Robert M. Vadas, Marvin B. Shaver
  • Patent number: 4300293
    Abstract: A belt tensioning assembling for use in a clothes dryer positions a drive belt in tensioned relation about a rotatable drum and a drive pulley mounted within the dryer housing. The belt tensioning assembly includes an idler pulley and a resilient mounting bar. The mounting bar is preferably pre-stressed to maintain the belt in aligned tensioned relation about the pulleys. The mounting bar includes a torsion arm member, a moment arm member, and a cantilevered positioning arm member onto which the idler pulley is rotatably mounted. The moment member joins one end of the positioning member to one end of the torsion member. The torsion member is secured in positioned load transfer relation with the housing. This locates the positioning member in predetermined spaced relation to the main axis of the drive pulley so that the idler pulley may be mounted thereon. Once mounted, the idler pulley may be moved to receive the belt thereover so as to provide tension thereto.
    Type: Grant
    Filed: March 28, 1980
    Date of Patent: November 17, 1981
    Assignee: Canadian Appliance Manufacturing Company Limited
    Inventor: Victor Gladysz
  • Patent number: 4300294
    Abstract: An article of footwear being in the form of a sandle includes a platform, two straps anchored to the platform to secure the platform to a wearer's foot, and an expedient, such as a velcro strip, mounted to the edge of the platform for removably fastening an upper foot covering to the platform to convert the sandal to a shoe and vice versa. The sandal includes a sole, a heel provided on the sole, an arch-engaging loop, an ankle-encircling loop, and one or more toe-receiving loops. The sole, an arch, a wedged heel, and a plurality of channels for movably receiving the straps are formed in a single molded platform to reduce the number of fabrication steps and make the sandle lighter. Each of the loops is anchored to the sole for adjustably securing the sole to a wearer's foot and for adjustably engaging the toe or toes of the wearer's foot. The arch-engaging loop and the toe-receiving loops are formed by a first strap and the ankle-encircling loop is formed by a second strap.
    Type: Grant
    Filed: October 9, 1979
    Date of Patent: November 17, 1981
    Inventor: George C. Riecken
  • Patent number: 4300295
    Abstract: The snow thrower includes a housing having a transversely extending discharge chute and an impeller rotatably mounted in the housing below the discharge chute and carrying a plurality of elongated, axially extending blades having a length substantially coextensive with the width of the discharge chute and a radially outwarding extending propelling section. The propelling section is in the form of a continuous series of corrugations with alternating peaks or ridges and valleys or furrows defining a plurality of generally V-shaped cups or pockets into which snow is compacted and from which snow is propelled upwardly toward the discharge chute during rotation of the impeller.
    Type: Grant
    Filed: January 14, 1980
    Date of Patent: November 17, 1981
    Assignee: Outboard Marine Corporation
    Inventor: Richard A. Heismann
  • Patent number: 4300296
    Abstract: In an ironing press the heating plate is suspended in a pivotal manner on the arm of the press by the intermediary of two sliders each engaged in a bore of the arm. The lower end of each slider presents a diammetrical hole engaged with a stirrup, mounted on a profile or section solid with the heating plate.Thus, when the heating plate is lowered onto the ironing board, it can adapt its position with respect to this latter, taking into account the differences in thickness of the article to be ironed.
    Type: Grant
    Filed: March 20, 1980
    Date of Patent: November 17, 1981
    Assignee: Mefina S.A.
    Inventors: Walter P. Hochstrasser, Georges Schumacher
  • Patent number: 4300297
    Abstract: A self-wicketing ticket is provided by a tag, one side of which is coated with a pressure sensitive coating covered by a backing, the backing being removable to expose the pressure sensitive coating, and means on said tag to provide a wicket. The wicket providing means comprises either a strip portion formed on the tag or a cord attached to the tag at a hole near an edge thereof.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: November 17, 1981
    Assignee: Globe Ticket Company
    Inventor: James E. Betterley
  • Patent number: 4300298
    Abstract: Apparatus for generating and displaying moving pictures in which a combination of a number of locally displaceable picture elements have positions that are variable and/or selectable by a number of adjustable outer or final control elements. At least part of individual final control elements have associated with them an inner control element. The position of the final control elements is variable in response to the action of the control elements, and these inner control elements are arranged on a movable inner control element carrier. The control elements constitute mechanical information storages in which the information has a total of at least two mechanical states and can be transmitted by mechanical contact to the associated final control elements, and hence to the picture elements. The information of the inner control elements is made variable by moving the control element carrier.
    Type: Grant
    Filed: August 15, 1978
    Date of Patent: November 17, 1981
    Inventor: Kurt Ehrat
  • Patent number: 4300299
    Abstract: A display assembly comprising a substantially vandal-proof enclosure for sheets of advertising, bus schedules, and the like is adapted for assembly at the site and mounting on different types of poles so that removal of previously mounted fixtures is not required.
    Type: Grant
    Filed: May 1, 1980
    Date of Patent: November 17, 1981
    Assignee: Almac Plastics
    Inventors: Lester Batky, Michael P. Batky, Jack Manne
  • Patent number: 4300300
    Abstract: A display board comprises a frame, two longitudinally displaceable legs extending in the plane of the board, a support articulated to the top of the display board and arranged to be swung at an angle to the plane of the board and a pair of struts between the board and the support to secure the latter in a swung-out position. Each of the struts is articulated to a respective leg of the board and to a component which is axially displaceable to a limited extent on the support. When the support is swung-in to a position in which it extends substantially parallel to the plane of the frame, the articulation points of the struts on the respective legs are located above the said axially displaceable component and therefore above the articulation points of the struts on the support. An extension member is telescopically arranged in the support and can be secured in position by a clamping member mounted on the support. The clamping member also serves to limit axial movement of the axially displaceable component.
    Type: Grant
    Filed: January 4, 1980
    Date of Patent: November 17, 1981
    Inventors: Erich Neuland, Rudolf L. Neuland
  • Patent number: 4300301
    Abstract: This invention provides a readily accessible easily manipulatable improved safety assembly for a firearm that can be easily retrofit on many existing firearms without special modification or adaption. By providing rotary action from a finger actuated safety lever operable with a trigger finger maintained adjacent the trigger, a rifle or shotgun may be easily moved without awkwardness from safe to fire condition in a moment of excitement when game or a moving target appears with less chance of awkwardness or an aborted shot.The safety assembly provides in a lateral bore through the trigger guard cage adjacent to and rearward of the pivoted trigger a rotatable barrel like member blocking rearward trigger motion in one detented position and permitting the trigger to move and release the firing pin in a second detented position where a receptacle cavity in the barrel mates with a trigger extension finger and lets the trigger pivot.
    Type: Grant
    Filed: May 16, 1979
    Date of Patent: November 17, 1981
    Inventor: Donald C. Morrison
  • Patent number: 4300302
    Abstract: An adjustable pistol grip for a competition rifle or the like having three basic embodiments. In one embodiment, balls and sockets are located in the pistol grip and stock or body of the rifle. The balls and sockets are connected by a rod which is adjustably clamped either by a hydraulic piston, screw ring or expanding ball, in the socket. The connecting rod may be two part, each displaceably clampable relative to the other. Another embodiment employs a flexible wire fixed to the stock and pistol grip. On the wire are perforated balls alternating with short cylinders and a screw or lever which can apply tension to the array to hold the pistol grip required in any position in relation to the stock. Another embodiment employs a universal joint, one member of which is rigidly fixed to the pistol grip or stock, and the other member of which is rigidly fixed to a rod which is adjustably held in a mount supplied with a clamp.
    Type: Grant
    Filed: July 16, 1979
    Date of Patent: November 17, 1981
    Assignee: J. G. Anschutz GmbH
    Inventors: Dieter Anschutz, Dieter Straub
  • Patent number: 4300303
    Abstract: A fishing pole tip, including a main tubular shank portion for glued attachment to the tip end of a pole such as a cane pole, and a front end cap, having a diametrically disposed hole in its front wall, opening into an enlarged interiorly threaded chamber for threaded engagement onto an exteriorly threaded, longitudinally diametrically slotted front end nose portion of the main tip portion. The front end of the nose portion and the interior front end of the cap are complimentarily tapered in a manner whereby a fishing line, extending inwardly through the front end cap hole, through the nose slot and outwardly between a rear edge of the cap and a shoulder rearwardly of the nose portion, will be securely locked against longitudinal adjustment when the cap is tightened on the nose portion while permitting a length adjustment of the usable portion of the fishing line when the cap is loosened.
    Type: Grant
    Filed: July 25, 1980
    Date of Patent: November 17, 1981
    Inventor: Duane Hutson
  • Patent number: 4300304
    Abstract: A nibbler stick which is conveniently mounted and dismounted on a conventional push-button type fishing float for interchangeability. A broadened base of the stick portion of a nibbler float has a channel along a diameter across which is a bridge. The upper retaining hook of the push-button float fits into the channel and over the bridge to hold the nibbler stick firmly atop the float as the spring within the push-button float urges the push-button against the bottom of the nibbler stick base. Other embodiments reveal threaded mounts, friction mounts and bonded mounts.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: November 17, 1981
    Assignee: Plastilite Corporation
    Inventors: E. Frank Maycock, John L. Rayer