Patents Represented by Law Firm Wegner, Stellman, McCord, Wiles & Wood
  • Patent number: 4233710
    Abstract: A molding apparatus for molding a pressurized plastic material of the nature of ground meat or other food such as ground fish and the like in which the apparatus comprises a movable mold having a mold opening for receiving a pressurized charge of the material, with the mold being movable between mold opening filling and article discharge positions, an entrance to the mold opening at the filling position, means for directing the pressurized charge through this entrance at the filling position and into the mold opening and vent means spaced from the mold opening entrance for venting from the mold opening air displaced by the pressurized charge entering the mold opening. The vent means comprises a plurality of elongated slots extending from the mold opening in the filling position on the side opposite to the mold entrance and exhausting to the exterior of the apparatus.
    Type: Grant
    Filed: September 20, 1978
    Date of Patent: November 18, 1980
    Assignee: Hollymatic Corporation
    Inventor: Richard C. Wagner
  • Patent number: 4233761
    Abstract: An earth digging bucket toothpoint construction with a tooth base having a tooth holder removably attached thereto and a toothpoint removably secured to the tooth holder in which an internal rib structure on noses of the interfitting parts with mating grooves in the interfitting parts of a particular specified size increases the section modulus against bending stresses to increase the bending strength of the noses against breakage.
    Type: Grant
    Filed: December 1, 1978
    Date of Patent: November 18, 1980
    Assignee: Page Engineering Company
    Inventor: Robert W. Ryerson
  • Patent number: 4232754
    Abstract: PCT No. PCT/US79/00177 Sec. 371 Date Mar. 19, 1979 Sec. 102(e) Date Mar. 19, 1979 PCT Filed Mar. 19, 1979 Ser. No.An energy-absorbing preloaded pad assembly (17,117) for use in stabilizing relatively movable portions of a structure, such as vehicle structure (10). The stabilizing pad assemblies may be utilized for stabilizing oscillations of a stabilizer bar (12) relative to a frame (11) of a vehicle (10) and may include preloaded pads (19). A removable clamp (21,121) cooperates with a cover plate (20,120) of the pad assembly to provide the desired preload to the pad and permit facilitated installation of the stabilizer bar in the vehicle structure, such as to permit ready installation of the pivot structure (113). Upon assembly of the vehicle structure, the removable clamp (21,121) is disassembled permitting reuse thereof with other similar pad assemblies. Removal of the clamp frees the pad for stabilizing functioning in the assembly in the normal manner.
    Type: Grant
    Filed: March 19, 1979
    Date of Patent: November 11, 1980
    Assignee: Caterpillar Tractor Co.
    Inventors: Ara L. Corrigan, Wayne G. Styck, Gerald M. Walden
  • Patent number: 4232572
    Abstract: An engine-transmission control system having an engine associated with a variable hydrostatic transmission with a ratio governor valve to set the transmission ratio and, thus, control engine speed, a horsepower demand signal valve and an engine speed signal valve with the signals derived from these valves being applied in opposition to the ratio governor valve for control thereof, and an engine fuel governor for the engine providing an operating curve for the engine which relates engine speed to engine horsepower to cause operation along the locus of minimum fuel consumption for the engine whereby operation of the transmission to set the engine speed determines engine horsepower by operation of the engine along the operating curve.
    Type: Grant
    Filed: July 17, 1978
    Date of Patent: November 11, 1980
    Assignee: Sundstrand Corporation
    Inventors: William A. Ross, Frederic W. Pollman
  • Patent number: 4232487
    Abstract: An abrasive surface treating device includes a gun connected to a pressurized air source, a housing containing a supply of abrasive material, an abrasive delivery line connected to the gun and having an aperture adjacent the housing outlet, a shroud to capture spent abrasive, and a vacuum source to draw spent abrasive and debris from the shroud back to the interior of the housing. The delivery of air at high velocity through the gun draws air through the abrasive delivery line via the aperture and thereby draws abrasive from the housing into the air stream flowing from the aperture to the gun so that the abrasive may be propelled against a work surface. The effective size of the aperture may be changed to alter the flow rate of various abrasive materials. In addition, the gun and abrasive delivery line may be connected to an adapter which, in turn, receives a shroud member having a configuration selected in accordance with the shape of the work surface.
    Type: Grant
    Filed: May 25, 1978
    Date of Patent: November 11, 1980
    Assignee: Knox Manufacturing Co.
    Inventor: Donald J. Brown
  • Patent number: 4231861
    Abstract: A grain cleaning apparatus having an upstanding housing with a grain inlet, at least one layer of screens disposed below the inlet and a foreign material receiving chamber disposed below the screen, with separate outlets for foreign material and cleaned grain and integral means for bypassing a selected, infinitely variable, between limits, proportion of incoming grain flow around the screens to the grain outlet.
    Type: Grant
    Filed: March 26, 1979
    Date of Patent: November 4, 1980
    Assignee: Parsons Manufacturing, Incorporated
    Inventors: Steven G. Hannie, Terry D. Tucker
  • Patent number: 4230171
    Abstract: A drapery, a supporting apparatus for said drapery, and a method of making a pleated drapery is provided. The drapery is provided with a structure for pleating the drapery in a pattern as it is moved out of a window covering position. The pleater structure includes a backing member attached to a plurality of spaced apart stiffening members. The pleater structure is attached to at least the top portion of the drapery. Fasteners are provided on each stiffening member for attaching the drapery to sliding carriers in a track on a support channel. Each end of the drapery is secured to appropriate sliding carriers and have friction members engaging with the track to arrest free movement of the drapery relative to the track. The vertically hinged stiffening members provide pleats in the drapery when the ends of the drapery are moved closer together.
    Type: Grant
    Filed: February 28, 1979
    Date of Patent: October 28, 1980
    Inventor: George H. Baker, Sr.
  • Patent number: 4229934
    Abstract: Apparatus for rolling large bales of fodder has a frame with a floor that supports a working run of fodder conveying chains trained around front and rear sprockets, and fodder pickup means is coaxial with the front sprockets and feeds fodder onto the conveying chains. Endless baling chains are connected by raddles that extend transversely above the floor, with the chains carried on sprockets except in a baling run above the floor where the ends of the raddles are supported on large rotatable discs at the sides of the frame. Rearward sprockets for the baling raddle chains are carried on a rear gate that has an upright baling position; and hydraulic cylinder means swings the gate upwardly and readwardly to release a bale. In baling position the floor is tilted forwardly, and a hitch for the apparatus has rear and front transverse pivots about which it is pivoted by hydraulic cylinder means to swing the frame to a discharge position in which the floor is tilted rearwardly.
    Type: Grant
    Filed: April 13, 1979
    Date of Patent: October 28, 1980
    Assignee: Chromalloy American Corporation
    Inventor: Richard K. Berky
  • Patent number: 4230648
    Abstract: A rotor adapted to rotate about a rotary shaft and intended for displacing fluids characterized in that the rotor comprises at least two ridges arranged helically around a core part so that a sectional area at right angles to the axis of rotation comprises at least two lobes with intermediate pits, the depth of the pit measured between the core part and a tangential line to the two lobes one on each side of the pit concerned being at least equal to one third of the distance between the core part and the circle described by the point of a lobe furthest remote from the axis of rotation.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: October 28, 1980
    Assignee: Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzcek Ten Behoeve Van Nijverheid, Handel en Verkeer (Nijverheidsorganisatie T.N.O.)
    Inventor: Frederik H. Leeuwrik
  • Patent number: 4228934
    Abstract: An ice body delivery apparatus having a hopper for storing a plurality of discrete ice bodies and a wall portion defining an outlet opening for passing the ice bodies seriatim outwardly therethrough for dispensing the ice bodies as desired. A rotatable auger is provided in a lower frustoconical portion of the hopper and includes spaced spiral vanes arranged to sweep across the opening so as to dislodge ice bodies which may have become lodged thereacross. The auger is arranged so as to define an effectively open axial portion permitting the dislodged ice bodies to be returned to the outlet opening therethrough and under or behind the rotating vanes back to the outlet opening. The vanes extend arcuately a total of approximately 360 degrees or more. The auger may be driven by a subjacent drive motor.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: October 21, 1980
    Assignee: Whirlpool Corporation
    Inventor: Keith E. Carr
  • Patent number: 4229044
    Abstract: An improved ripper assembly (10) wherein a ripper shank (19) is mounted to the beam (11) of a tractor by a clevis pin (22) so as to minimize side forces acting on the shank pin (25). The vertical axis of the clevis pin may be aligned with the distal end (34) of the ripper tip (21) and the horizontal axis (24) of the shank pivot pin (25). The impact surfaces (28,29) of the impacting mechanism (18) and shank (19) preferably define a plane of abutment in which lies a radius (30) from the horizontal shank pivot pin axis (24). This plane is further preferably accurately perpendicular to the ripper tip axis (31) extending perpendicularly to the radius (30). The arrangement provides a free pivoting action of the ripper assembly about the vertical axis of the clevis pin so as to effectively minimize side loads for improved extended life of the ripper assembly (10).
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: October 21, 1980
    Assignee: Caterpillar Tractor Co.
    Inventors: Delwin E. Cobb, Richard E. Livesay
  • Patent number: 4228962
    Abstract: A liquid swirler arranged to comminute relatively large solids so as to permit the comminuted solids to pass through openings in the swirler with a liquid flow induced therethrough. In the illustrated embodiment, the apparatus is utilized in a dishwasher having a pump for flowing dishwashing liquid through a flow passage of a centrifuge-type separator. The swirler effects a swirling movement of the liquid in the separator to permit the separator to remove the solids from the liquid before passing the liquid on to the pump. The swirler is arranged to provide the further function of breaking solids down to a small enough size to permit them to pass satisfactorily through the pump and dishwashing liquid circulation system. A resilient member is disposed adjacent the swirler to assist in breaking up relatively large solids by holding them suitably for comminuting action by the rotating swirler.
    Type: Grant
    Filed: June 14, 1979
    Date of Patent: October 21, 1980
    Assignee: Whirlpool Corporation
    Inventors: Geoffrey L. Dingler, Philip P. Johnson
  • Patent number: 4228923
    Abstract: An ice maker dispenser structure wherein a removable chute is provided as a portion of a discharge duct leading from a discharge opening in a collecting bin for storing a plurality of discrete ice bodies to be dispensed. An agitator is disposed within the collecting bin adjacent the discharge opening and is operated to agitate the ice bodies adjacent the opening when a closure member is removed from the opening to effect the dispensing operation. An interlock is provided for preventing movement of the closure member away from the discharge opening in the event the chute is removed from the ice maker such as for servicing of the chute, thereby preventing injury to the user's fingers which may inadvertently be passed inwardly through the discharge opening into contact with the operating agitator.
    Type: Grant
    Filed: August 17, 1979
    Date of Patent: October 21, 1980
    Assignee: Whirlpool Corporation
    Inventor: Walter C. Barnard
  • Patent number: 4228903
    Abstract: A gravity feed can dispenser for use in a commercial cooler is provided with integral means permitting two or more dispensers to be stacked in interlocked relationship, and further integral means permitting two dispensers to be connected side by side. The racks in most coolers are formed of parallel wires extending from front to rear; and in order that a dispenser may be stably supported on such a rack there must be transversely extending feet that rest upon several rack wires. In the present structure there is a fixed foot at the front which is vertically small enough that on an upper dispenser of a stack it does not interfere with removal of a can from the dispenser beneath it; and there is a hinged panel toward the rear which selectively occupies a non-interference position if the dispenser is an upper one, or a supporting position if the dispenser rests directly upon the rack.
    Type: Grant
    Filed: April 26, 1979
    Date of Patent: October 21, 1980
    Assignee: Thomas A. Schutz Co., Inc.
    Inventor: Ronald P. Eckert
  • Patent number: 4227570
    Abstract: A heat exchange structure is provided wherein a radiator (10) has a cooling core (24) extending between a top tank (22) and a bottom tank (20) with the bottom tank (20) being open (38) at one side. A cooler (66) for cooling a second fluid is mounted on a plate (46) which is sealingly secured over the open side (38) of the bottom tank (20) to position the cooler (66) in said bottom tank (20). A baffle (55) is mounted in the bottom tank (20) to divert fluid flowing through the cooling core (24) past the cooler (66). The plate (46) with the cooler (66) attached is removable from the bottom tank (20) without disturbing the connections between the cooling core (24) and the bottom tank (20). The heat exchange structure is assembled in a picture frame mounting (12) with attaching members (16) passing through bottom members (17) of the picture frame mounting (12) and threading into fasteners (18) in the bottom tank (20) to removably anchor the picture frame mounting (12) and the heat exchange structure together.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: October 14, 1980
    Assignee: Caterpillar Tractor Co.
    Inventor: Donald R. Crews
  • Patent number: 4227836
    Abstract: A top silo unloader is of the type which has a cutter-conveyor pickup arm, an impeller, a drive ring above the cutter-conveyor pickup arm, and support arms in a horizontal plane above the drive ring to which suspension cables are connected for moving the unloader vertically in the silo. Improved support arms have downwardly and outwardly extending offset portions outside the drive ring which have their free ends in a plane above the bottom of the cutter-conveyor pickup arm, and means on the free ends of the offset portions to receive the suspension cables.
    Type: Grant
    Filed: May 10, 1979
    Date of Patent: October 14, 1980
    Assignee: Chromalloy American Corporation
    Inventors: Cary L. Sizelove, Donald G. Wells
  • Patent number: 4228076
    Abstract: A method of densifying open-celled polyurethane foam is provided in which heated air at a temperature between about 425.degree. F. and 460.degree. F. is circulated through a mass of the foam so as to rapidly and uniformly raise the temperature of the mass to between about 365.degree. F. and 435.degree. F., the mass is then compressed to a desired thickness while its temperature is maintained between 365.degree. F. and 435.degree. F., and the mass is then immediately permitted to cool.
    Type: Grant
    Filed: May 31, 1979
    Date of Patent: October 14, 1980
    Assignee: Foam Cutting Engineers, Inc.
    Inventor: Winslow L. Pettingell
  • Patent number: 4228194
    Abstract: An electrically conductive article comprises an insulating material, preferably polyurethane or a similar plastic material, with a plurality of thinly coated electrically conductive fibers dispersed randomly and uniformly therethrough. The fibers are thinly coated with a lubricating cohesive silicone oil or equivalent material which adheres to the fibers and repels the insulating material, thereby preventing encapsulation of the fibers and rendering the coated fibers mutually attractive to define conductive paths through the article even at extremely low fiber loadings.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: October 14, 1980
    Inventor: Ernest P. Meeder
  • Patent number: 4227744
    Abstract: A detachable impact tip (10) for an impact rock breaker (B) has a mounting socket (11) and an improved tooth (12) which has a rectangular base (13) abutting the socket (11), and a body (14) which is wedge-shaped in side elevation and generally spade-shaped in plan. The body (14) has smoothly rounded longitudinal margins (17), and an extremity (15) which forms a generally blunt edge smoothly rounded from top to bottom and gently convex from side to side, and smoothly curved forward margins (18) between generally triangular sides (14a) of the body (14) and said extremity (15).
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: October 14, 1980
    Assignee: Caterpillar Tractor Co.
    Inventor: Richard E. Livesay
  • Patent number: 4226269
    Abstract: An ice body dispenser arranged to provide preselected different quantities of ice bodies from a storage chamber as a function of the size of a receptacle, or cup, placed in a receiving position below a delivery duct thereof. The dispenser includes one or more control elements selectively insertable into the delivery duct to correspondingly adjust the amount of ice bodies delivered by a concurrent opening of the lower closure member of the device. The device includes control switches which sense the size of the cup placed in the ice body receiving position so as to cause a selective use of the different control elements. The control elements may be fork elements having one or more tines for providing improved column interception with effectively minimal crushing and breaking of the ice bodies in the column.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: October 7, 1980
    Assignee: Whirlpool Corporation
    Inventors: Keith E. Carr, John J. Symons