Patents Represented by Law Firm Phillips, Moore, Weissenberger Lempio & Strabala
  • Patent number: 3997040
    Abstract: The invention comprises a console attachable to a vehicle to control a transmission thereof. The console comprises an enclosure which includes a plate atop the enclosure. The plate includes an indentation which forms a trough therein and further includes a channel passing through the plate in an upraised portion thereof adjacent the trough. A gearshift regulator extends through the channel, the regulator serving to control the transmission of a vehicle. A parking brake actuator is recessed within the trough. The actuator serves to control a parking brake of the vehicle.
    Type: Grant
    Filed: December 10, 1974
    Date of Patent: December 14, 1976
    Assignee: Caterpillar Tractor Co.
    Inventors: Frederick C. O'Neill, Alfred W. Sieving
  • Patent number: 3996743
    Abstract: A hydrostatic unit of the type contemplated by the present invention includes one or more pump and motor combinations interconnected by means of a conventional closed loop. Controls for the hydrostatic unit include a speed control and vent valve assembly as well as a venturi manifold which functions to normally establish a selected pressure differential in a pair of supply conduits for determining instant operating conditions for the transmission. In order to automatically regulate displacement of each pump unit in response to prime mover speed, an underspeed actuator valve unit includes a piston which is hydraulically responsive to the differential pressure in order to adjust operation of a lever which controls displacement of the pump unit. A part throttle control valve prevents the underspeed actuator from reducing displacement of the pump unit when speed of the prime mover is reduced by a manual throttle control.
    Type: Grant
    Filed: February 20, 1975
    Date of Patent: December 14, 1976
    Assignee: Caterpillar Tractor Co.
    Inventors: Cyril W. Habiger, William J. Spivey
  • Patent number: 3997460
    Abstract: The invention relates to a surface adherent abrasive liquid cleaner which is especially useful for removing hard water, iron and organic stains as might be found in toilet bowls. The cleaner includes a mineral acid such as hydrogen chloride to aid in dissolving the stains. An abrasive is suspended in the cleaner to aid in mechanically scrubbing off the stains. A particular suspending agent comprising hydrophillic silica, at times used in combination with a secondary suspending agent preferably comprising an metal silicate, forms a part of the cleaner. Sufficient of the suspending agent is used to make the cleaner free-flowing and to stably suspend the abrasive but still to leave the cleaner viscous enough to adhere to a smooth surface such as porcelain and to the stains. A non-ionic surfactant forms a part of the composition. An effective disinfectant can also form a part of the composition.
    Type: Grant
    Filed: April 10, 1975
    Date of Patent: December 14, 1976
    Assignee: The Clorox Company
    Inventors: Gloria F. Sirine, Inesis A. J. Day, Stephen J. Kahn
  • Patent number: 3996817
    Abstract: A transmission constructed according to the present invention includes a plurality of planetary gear sets, two inputs clutches being simultaneously engaged to establish an intermediate gear ratio within the transmission, each of the input clutches also being engaged together with additional friction devices in the transmission for establishing gear ratios either higher or lower than the intermediate gear ratio, the interconnection of the planetary gear units being selected for improved torque transmission, the input clutches being interrelated by means of a balancing mechanism to facilitate their operation either in unison or separately from each other.
    Type: Grant
    Filed: August 27, 1974
    Date of Patent: December 14, 1976
    Assignee: Caterpillar Tractor Co.
    Inventor: James Elmer Winzeler
  • Patent number: 3997017
    Abstract: A vehicle such as a motor grader includes a hydrostatic auxiliary front wheel drive system which utilizes implement system pressurized fluid flow to drive a pair of fixed displacement hydraulic motors, such motors being drivingly connected to cause rotation of the front wheels. A pilot operated series-parallel valve in combination with a flow divider allows the motors to be driven in series or in parallel. A directional control valve is selectively responsive to operator control, and clutch actuation is accomplished automatically by directing a controlled portion of system fluid to such clutches to overcome the normal spring bias thereof.
    Type: Grant
    Filed: January 14, 1974
    Date of Patent: December 14, 1976
    Assignee: Caterpillar Tractor Co.
    Inventors: John A. Campbell, Joseph E. Dezelan, Cullen P. Hart
  • Patent number: 3995532
    Abstract: A fluid control circuit for regulating flow from a source of fluid under pressure to a hydraulic motor, including a control valve having a movable spool for communicating fluid entering an inlet chamber from the source with service chambers in communication with the motor, an inlet relief valve selectively pressurizing the inlet chamber in response to spring means and signal fluid received from the service chambers through signal passages. The control valve and its spool are configured to insure that the signal passages are always in positive communication either with one of the service chambers or a drain in order to facilitate manipulation of the spool. The control valve is also adapted to communicate signal fluid to the relief valve prior to communication of either service chamber with the inlet chamber in order to precondition the relief valve and improve response of the motor to manipulation of the control valve.
    Type: Grant
    Filed: July 15, 1974
    Date of Patent: December 7, 1976
    Assignee: Caterpillar Tractor Co.
    Inventors: John A. Junck, Larry W. Lorimor
  • Patent number: 3995887
    Abstract: A system for monitoring the contents of a plurality of different inventories at different locations, such as for monitoring the contents of a plurality of first aid kits, some of which have different contents from others. The system includes a plurality of pairs of charts each having first and second regions thereon. The first regions contain printed matter common to all inventories or kits. Each pair of charts is associated with a single inventory or kit and the second regions thereon contain special printed matter i.e. printed matter pertinent only to the kit or inventory with which such charts are associated, normally consisting primarily of a predetermined list of such inventory or kit.
    Type: Grant
    Filed: April 7, 1975
    Date of Patent: December 7, 1976
    Assignee: E. D. Bullard Company
    Inventor: Brock F. Brockway
  • Patent number: 3995676
    Abstract: In a multi-piece rim arrangement having a tapered base member and an associated tire bead seat band, the bead seat band is constructed to prevent tire inflation if the rim is improperly assembled. Included is a portable puller tool, adaptable to existing rim assemblies, that functions to pull the bead seat band against the lock ring of the multi-piece rim arrangement with sufficient force to insure proper positioning of the various rim members and establish air tight integrity with a mounted tire.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: December 7, 1976
    Assignee: Caterpillar Tractor Co.
    Inventor: Robert Casey
  • Patent number: 3995671
    Abstract: A shear mechanism includes shear members pivotally mounted to a first frame, with a second frame movable relative to the first frame, and first and second links connected to the second frame. The first and second links are also connected to the first and second shear members, and first and second cylinders are connected with the second frame and the first and second links respectively, so that actuation of the cylinders in one direction moves the links to bring the shear members together, and actuation of the cylinders in the other direction moves the links to move the shear members apart, with the second frame moving relative to the first frame upon such movement of the first and second shear members.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: December 7, 1976
    Assignee: Caterpillar Tractor Co.
    Inventor: Leon A. Wirt
  • Patent number: 3996085
    Abstract: The invention comprises a tube-tire patch, and a method and apparatus for applying said patch. The patch comprises a cured rubber member with a concave surface internally reinforced with a fabric and having a stem integral with said member and upraised generally centrally from said concave surface. The patch includes an uncured rubber layer covering the concave surface and a removable protective cover generally coextensive with the concave surface and fully covering the uncured rubber layer. The patch is especially useful for patching a punctured tube-tire. A tube-tire patch as described above is inserted through the puncture after appropriate buffing and cleaning about the puncture with the stem portion of the patch extending through the puncture. The protective cover is removed from the concave surface through the puncture and thereafter a pulling force is exerted upon the stem and away from the puncture.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: December 7, 1976
    Assignee: Caterpillar Tractor Co.
    Inventors: Dwaine R. Barnes, Marvin E. Beyers, Donald G. Boundy, Robert W. Untz, Robert M. Wilcox
  • Patent number: 3995357
    Abstract: The invention relates to a process for forming a part including a bore with a bearing integrally cast thereto, the thus formed part and apparatus for thus forming the part. The process includes hot machining a bore into a billet in a non-oxidizing atmosphere and introducing molten bearing material, e.g., molten bronze about a mandrel positioned in the bore while maintaining the billet, the mandrel and the bearing material in the non-oxidizing atmosphere. The mandrel is drawn from the bore while the bearing material is cooled by cooling and solidifying means therein adjacent an end of the mandrel which is last to exit the bore. The cooling is sufficient to progressively solidify the material as the mandrel is drawn through it and out of the bore.
    Type: Grant
    Filed: December 16, 1974
    Date of Patent: December 7, 1976
    Assignee: Caterpillar Tractor Co.
    Inventors: Roger L. Boggs, Harold L. Reinsma, Glenn R. Gobble
  • Patent number: 3995426
    Abstract: The invention is concerned with an improved mechanical arrangement for controlling the steering and speed function of a hydrostatic control system for a ground driven vehicle. Such a control system comprises a pair of hydrostatic pumps each controlled by a rotatable arm extending from a servo valve mounted thereon along with a pair of hydrostatic motors each driven by a respective one of the pumps and a pair of ground engaging means each on respective sides of the vehicle.
    Type: Grant
    Filed: November 19, 1975
    Date of Patent: December 7, 1976
    Assignee: Caterpillar Tractor Co.
    Inventor: Cyril William Habiger
  • Patent number: 3995672
    Abstract: Apparatus capable of automatically splitting logs into portions of give maximum cross-sectional dimensions regardless of the cross-sectional size of the logs to be split is disclosed. Preferred structures of the apparatus for splitting short logs into firewood and for splitting longer logs into fenceposts are described. A preferred electrohydraulic operating system is disclosed.
    Type: Grant
    Filed: September 10, 1975
    Date of Patent: December 7, 1976
    Inventor: Michael B. Binninger
  • Patent number: 3996268
    Abstract: Carbonyl-bis (L-methionine p-nitrophenyl ester) and its analogues are useful reagents for the intermolecular cross-linking of two chain peptide molecules such as occur in the hormone insulin. The cross-linking occurs across amino groups at preferred positions in the two peptide chains to fix the relative spacial position of the peptide chains and permit the oxidative formation of necessary disulfide bridges between the chains in high yields. The reagent is then removed from the linked chains to yield the insulin molecule. A method for preparation of the reagent is disclosed. Further, a procedure is disclosed by which the cross-linking reagent is used to specifically block certain amino groups on insulin to yield a cross-linked insulin which in turn is used to prepare isotopically labeled insulin and insulin analogues.
    Type: Grant
    Filed: September 3, 1974
    Date of Patent: December 7, 1976
    Assignee: The Regents of the University of California
    Inventors: Frederick H. Carpenter, Wolf-Dieter Busse
  • Patent number: 3991633
    Abstract: A steering arrangement for construction vehicles and the like comprises a steering column assembly pivotally mounted on a stationary support for selective adjustment about a pivot axis disposed transversely relative to such assembly. A steering handle, rotatably mounted on the assembly, is operatively connected to a steering valve by linkage means for selectively steering a vehicle in response to rotation of the steering handle. The linkage means includes a push-pull cable having its upper end pivotally mounted about a pivot axis coincident with the pivot axis about which the steering column assembly is pivotally mounted on the stationary support to prevent actuation of the steering valve upon adjustment of the steering column assembly.
    Type: Grant
    Filed: July 11, 1975
    Date of Patent: November 16, 1976
    Assignee: Caterpillar Tractor Co.
    Inventors: John Molnar, James E. Schimpf
  • Patent number: 3992035
    Abstract: A tandem axle suspension system for a vehicle includes a first axle including non-adjustable fixed spring means for connecting the axle for support of the frame of the vehicle, and a second axle including an adjustable hydraulic spring means and including leveling valve means responsive to the distance between the second axle and the frame means for controlling communication of fluid to the second or adjustable hydraulic spring means.
    Type: Grant
    Filed: June 20, 1975
    Date of Patent: November 16, 1976
    Assignee: Caterpillar Tractor Co.
    Inventors: Joseph E. Dezelan, David S. Vinton
  • Patent number: 3991568
    Abstract: A hydraulic circuit comprises a first tank elevated above a second tank and openly communicating therewith by a conduit adapted to continuously maintain the second tank at full capacity with a hydraulic fluid. The hydraulic fluid is pumped out of the second tank and to a work system wherefrom it is recircuited back through a filtering system, retained in the first tank. Upon malfunctioning of the filtering system to prevent the egress of hydraulic fluid therethrough, the increased pressure level of the recircuited hydraulic fluid will function to open a directional control check valve in the second tank to by-pass the conduit normally communicating hydraulic fluid from the first tank to the second tank.
    Type: Grant
    Filed: April 4, 1975
    Date of Patent: November 16, 1976
    Assignee: Caterpillar Tractor Co.
    Inventors: Eugene E. Latimer, Larry W. Lorimor
  • Patent number: 3991787
    Abstract: A hydraulically operated winch of the type adapted for logging or towing operations and having a rotatable winch drum about which a cable or line is entrained, a normally disengaged clutch being hydraulically operable to provide a coupling between a power input member and a winch drum drive shaft, a normally engaged friction brake normally securing the winch drum drive shaft against rotation while being hydraulically disengagable and a normally engaged clutch providing a selective coupling between the winch drum drive shaft and the winch drum.
    Type: Grant
    Filed: July 15, 1974
    Date of Patent: November 16, 1976
    Assignee: Caterpillar Tractor Co.
    Inventors: James L. Schmitt, David S. Ohaver
  • Patent number: 3990552
    Abstract: A control mechanism for regulating operation of a rotatable winch drum through a power train including a brake which is normally engaged by hydraulic pressure to secure the winch drum against rotation and a normally disengaged clutch which is selectively engaged by hydraulic pressure for driving the winch drum in a reeling-in mode, the control mechanism including a control lever which is movable for selectively communicating hydraulic fluid to the brake and clutch, first and second biasing means being associated with the control lever to provide for adjustment of the lever at different rates of modulation.
    Type: Grant
    Filed: January 23, 1975
    Date of Patent: November 9, 1976
    Assignee: Caterpillar Tractor Co.
    Inventor: John R. Muntjanoff
  • Patent number: 3990539
    Abstract: An excavator comprises an upper unit rotatably mounted on an undercarriage by selectively driving a swing pinion against a reaction ring gear secured to the undercarriage. A semi-cylindrical grease retainer is secured to the upper unit to substantially enclose the swing pinion to continuously supply grease to meshing teeth of the respective gears. A fill-tube is secured to the retainer to communicate grease therein via a fitting disposed in an operator's cab of the excavator.
    Type: Grant
    Filed: January 23, 1975
    Date of Patent: November 9, 1976
    Assignee: Caterpillar Tractor Co.
    Inventor: Andre G. G. Marit