Patents Represented by Law Firm Phillips, Moore, Weissenberger, Lempio & Majestic
  • Patent number: 4297742
    Abstract: A solenoid-operated fuel valve opens automatically when the engine is started to allow fuel to flow from a fuel tank to the engine and closes automatically when the engine throttle is moved to fuel-off position to shut down flow of fuel through the governor for the engine. In the event of an emergency, operation of a manual shutdown control will de-energize the fuel valve solenoid to shut off flow of fuel to the engine compartment and will also shut down the engine by energizing a solenoid to move the fuel rack for the governor to fuel-off position. Actuation of a fire-extenguisher system for the engine will automatically de-energize the fuel-valve solenoid and energize the fuel-rack solenoid. The fuel-rack solenoid remains energized for a timed period sufficient to ensure engine shutdown in emergency situations.
    Type: Grant
    Filed: January 8, 1979
    Date of Patent: October 27, 1981
    Assignee: Caterpillar Tractor Co.
    Inventors: Gary N. Heitzman, Clay L. Hutchings, Gary L. Knepp, Robert G. Miller
  • Patent number: 4296153
    Abstract: A vacuum deposition apparatus comprises a cabinet having a vacuum chamber defined therein. A door is movably mounted on the cabinet for movement between a closed position fully sealing an opening to the vacuum chamber and an opened position fully exposing the opening. The door is preferably mounted on the cabinet for swinging movements towards and away from the opening and for vertical sliding movements whereby the door may be moved downwardly to a remote position. The door is preferably counterweighted to facilitate its vertical sliding movements and is pivotally mounted on a bracket by self-centering bearing assemblies which are pre-adjusted to continuously insure a positive static seal as between the door and the opening to the vacuum chamber.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: October 20, 1981
    Assignee: CHA Industries
    Inventor: Gunard O. B. Mahl
  • Patent number: 4295449
    Abstract: Two fully independent fuel injection systems have been used for delivering pilot and main fuel injection. Also, two fuel pumps have been used to provide pilot and main injection through a single nozzle. A fuel injection apparatus now provides a plurality of rotary valves (46,48) for starting and stopping both pilot and main injection. Fuel is sequentially (26) controlled to be pilot injected through a first nozzle (28) and main injected through a second nozzle (30).
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: October 20, 1981
    Assignee: Caterpillar Tractor Co.
    Inventors: Richard A. Cemenska, George B. Grim
  • Patent number: 4295540
    Abstract: Brake wear in a vehicle (11, 11a) may be reduced by an interlock (23, 23a) which blocks delivery of power to the wheels (13, 13a) or the like if an attempt is made to initiate powered travel while the parking brake (19, 19a) remains engaged. Rather than neutralizing the vehicle transmission (16, 16a), the interlock (23, 23a) responds to an engaged parking brake (19, 19a) accompanied by drive transmitting conditions in the clutch (18, 18a) and transmission (16, 16a) by suppressing power output at the engine (12, 12a). In one form the system overrides the operator's controls to limit fuel input to the engine (12) so that stalling occurs if start-up is attempted with the brake (19) engaged while in another form the system directly shuts down the engine (12a) under such conditions. Start-up of the vehicle (11, 11a) on a slope or under load is facilitated as the engine (12, 12a) may be accelerated while the transmission (16, 16a) is in gear and the brake (19, 19a) is still engaged.
    Type: Grant
    Filed: September 14, 1979
    Date of Patent: October 20, 1981
    Assignee: Towmotor Corporation
    Inventor: Harold V. Hildebrecht
  • Patent number: 4295276
    Abstract: A pair of members (16,20) are aligned in concentric relationship by engaging a template (26) between the members (16,20) to indicate the degree of eccentricity therebetween and by moving one (16) of the members into concentric relationship relative to the other member (20), as indicated by the template (26). The template (26) is circular and has a radial piloting slot (32) formed therethrough.
    Type: Grant
    Filed: November 3, 1978
    Date of Patent: October 20, 1981
    Assignee: Caterpillar Tractor Co.
    Inventor: Rayburn P. Ellington, III
  • Patent number: 4295490
    Abstract: A milking apparatus is disclosed for automatically providing the appropriate amount of vacuum for purposes of milking a cow throughout the entire milking operation. The milking apparatus includes a fluid control valve system having a controller unit and a discharge valve in fluid communication with a collection jar. The controller unit is further adapted for communication with a source of vacuum, and the collection jar is adapted to be in communication with the cow such that the vacuum can draw milk from the cow into the collection jar. The discharge valve is further adapted for communication with a source of vacuum for drawing the milk through the discharge valve.
    Type: Grant
    Filed: August 9, 1979
    Date of Patent: October 20, 1981
    Inventor: Archie E. Boudreau
  • Patent number: 4296431
    Abstract: A high-resolution television system in which color fidelity is preserved while allowing the use of frame-store type noise elimination techniques, by inverting one of the color axes at a first rate, and the other color axis at a second, different rate. While reversal of the second axis at a frame rate is preferred because it permits effective use of noise reduction techniques, reversal at other rates such as the field rate is also beneficial because it allows the filtering of the color subcarrier pattern with less degradation in image quality. In a preferred embodiment of the invention, the color subcarrier frequency is chosen as twice the standard NTSC frequency to reduce horizontal sweep harmonic interference and make the inventive equipment easily compatible with NTSC equipment. Apparatus for achieving such compatibility is described.
    Type: Grant
    Filed: April 11, 1980
    Date of Patent: October 20, 1981
    Assignees: Ygnacio Inc., Compact Video Systems Inc.
    Inventor: Kenneth F. Holland
  • Patent number: 4295541
    Abstract: The invention relates to apparatus (10) for supporting in common loads including a brake pedal (14) and tilt cylinder (16), as well as for mounting a brake master cylinder (42). The invention overcomes problems in isolating one load from another and in conveniently mounting the master cylinder. The apparatus (10) includes a frame (12), a bifurcated bracket (20) having ears (24,26) and being coupled to the frame (12), an elongated sleeve (52 or 60 or 62) supported on the ears (24,26) and an elongated cross pin (32) rotatably supported in the ears (24,26). The brake pedal (14) is coupled to one end of the pin (32) and the cylinder (16) is coupled to the sleeve (52 or 60 or 62) between the ears (24,26), both inside an inboard side of the frame (12). The master cylinder (42) is mounted on an outboard side of the frame (12) and is coupled to the other end of the pin (32).
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: October 20, 1981
    Assignee: Towmotor Corporation
    Inventor: Richard J. Malecha
  • Patent number: 4294278
    Abstract: A pressure modulating valve 28 has a principal use for retrofitting into an original hydraulic system (10) to modulate the fluid pressure from a source (11) of hydraulic fluid to hydraulic clutches (50, 52) in a transmission (54). In prior art valves, the routing of hydraulic fluid from the original system to the valve involved the connection of many lines. The present invention is connected to the source (11) at only one location and discharges fluid to the clutches from said location. The valve (28) is operated by the fluid provided at the one location without the need to route fluid around the valve (28) to the various components thereof. The valve (28) also modulates the fluid supplied to the clutches from a low pressure to a high pressure to provide smooth clutch engagement.
    Type: Grant
    Filed: December 14, 1979
    Date of Patent: October 13, 1981
    Assignee: Caterpillar Tractor Co.
    Inventor: William W. Blake
  • Patent number: 4292865
    Abstract: A tool holder constituting an adaptive machining control system to automatically manipulate tool rake angle using in-process force feedback. The tool holder includes a rotatable member for holding a cutting member which cuts a workpiece, a motor to rotate the holding member, and a sensor and control logic to sense cutting forces and activate the motor to rotate the holding member and change the tool rake angle. The cutting member is held so that it rotates about an axis through its cutting tip to change the rake angle without varying the depth of cut on the workpiece. In an alternative embodiment, a manually operated tool holder is manipulated to similarly rotate a cutting member to vary the rake angle.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: October 6, 1981
    Assignee: Chunghorng R. Liu
    Inventors: Chunghorng R. Liu, Jnaneshwar H. Nayak, Herbjorn Stenberg, Felipe J. Huerta, Woodrow A. Hall
  • Patent number: 4292940
    Abstract: The invention pertains to apparatus for controlling the quantity of fuel delivery to an engine and engine timing. Several problems with prior apparatus include their high cost and inability to be easily programmed for control purposes, together with their use of complicated electrical controls to meet reliability standards. The inventive solution includes a control rod (16) having a plurality (25,84) of control surfaces of preset shape that determine the maximum quantity of fuel delivery to the engine and engine timing. A plurality (30-36, 40,70) of hydromechanical control circuits axially and rotatably move the control rod (16) in response to engine speed and load. A plurality (18,26,28 and 90-100, 100') of devices control the maximum quantity of fuel delivery and engine timing based on the axial and rotatable positions of the rod (16). The inventive apparatus is used principally to control exhaust emissions from an engine.
    Type: Grant
    Filed: August 27, 1979
    Date of Patent: October 6, 1981
    Assignee: Caterpillar Tractor Co.
    Inventor: John M. Bailey
  • Patent number: 4293164
    Abstract: Conventional fluid control circuits for brakes, including separate parking and retarding valves, include high volume lines and/or complex mechanical linkages to selectively effect the braking functions. This invention provides a relatively non-complex fluid control circuit (10) for closely controlling engagement of brakes (15), including a first valve (25) for controlling engagement of the brakes (15), a pilot line (20), a second valve (47) connected to the pilot line (20), and movable between a closed position and an open position for venting an inlet (28) to the first valve (25), and a third valve (19 or 22) for closing the pilot line (20) and the second valve (47) or for venting the pilot line (20) to open the second valve (47) to vent the inlet (28) to the first valve (25). The third valve (19 or 22) may include interassociated parking (19) and retarder (22) valves adapted for common attachment within a cab of a vehicle for ready access by an operator thereof.
    Type: Grant
    Filed: August 13, 1979
    Date of Patent: October 6, 1981
    Assignee: Caterpillar Tractor Co.
    Inventors: Wayne A. Hoefer, Paul J. Tanty
  • Patent number: 4292692
    Abstract: An improved headband is disclosed which is readily adjustable in size and which is self-setting to automatically accommodate a wearer having a head of a larger size than the size to which the headband is adjusted. The headband is useful in a suspension system for a safety hat or the like.
    Type: Grant
    Filed: March 17, 1980
    Date of Patent: October 6, 1981
    Assignee: E. D. Bullard Company
    Inventors: Anthony L. Moretti, Lester W. Ferris
  • Patent number: 4292304
    Abstract: The present invention provides an encapsulated dentifrice comprising an edible capsule within which is contained a substantially anhydrous, oil based dentifrice composition and an abrasive agent suitable for removal of plaque. The capsule is water soluble and oil insoluble, and is particularly useful for travellers, and the like. A preferred oil based dentifrice composition includes a source of vitamin E.
    Type: Grant
    Filed: September 30, 1980
    Date of Patent: September 29, 1981
    Inventors: Ronald R. Barels, Daniel J. Ghinazzi
  • Patent number: 4291535
    Abstract: Power output of a compound engine is increased and fuel consumption per unit of output power is reduced by eliminating the blowdown losses heretofore associated with opening of exhaust valves or ports. Exhaust gases of a positive displacement engine stage drive a turbine or other gas-expansion stage, the two stages being mechanically coupled to jointly contribute to power output. The turbine stage may also drive a compressor to supercharge the positive displacement stage. Flow-regulating means in the exhaust gas passage between the two stages maintain exhaust gas passage pressure at a level corresponding to that which exists in the combustion chambers of the positive displacement stage at the time that exhaust valves or ports open. This avoids exhaust gas expansion between stages and reduces or eliminates the blowdown losses which would otherwise occur.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: September 29, 1981
    Assignee: Caterpillar Tractor Co.
    Inventor: Alexander Goloff
  • Patent number: 4290546
    Abstract: A cover for use with disposable plates, platters or other dishes of the type used by the "take-out" food industry is disclosed. The cover comprises a sheet of semi-rigid material such as paperboard having an area large enough to overlie the dish and is attached thereto by means of at least two slits through the sheet spaced from each other and dimensioned to each receive a substantial portion of the periphery of the dish thereby holding the cover in engagement with the upper surface of the dish to protect food thereon from contamination while tending to maintain the food at serving temperature.
    Type: Grant
    Filed: September 6, 1979
    Date of Patent: September 22, 1981
    Inventors: Amos R. Kanaga, Stephen R. Kanaga
  • Patent number: 4290236
    Abstract: PCT No. PCT/US79/00322 Sec. 371 Date May 14, 1979 Sec. 102(e) Date May 14, 1979 PCT Filed May 14, 1979 WO80/02526 Nov. 27, 1980The ends (14,16) of cylindrical bushings 10) in which pins rotate bear relatively heavy loads. This can lead to a slight internal deformation of the bushing (10) which can interfere with free rotation of the pin. Such a problem is encountered, for example, with track pin bushings. A solution to this problem is to contour the ends (14,16) of the bushing (10) so that the inner diameter thereof flares (28,30) outwardly toward the bushing ends (14,16). This has not previously been accomplished via a single relatively non-critical operation. In the present invention a first end (14) of a cylindrically bored tube (10) is compressed radially inwardly sufficient to force it to a reduced internal diameter (18).
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: September 22, 1981
    Assignee: Caterpillar Tractor Co.
    Inventors: Thomas D. Brewer, Robert J. Purcell, James R. Sturges
  • Patent number: 4289055
    Abstract: An improved rotatable anvil is provided. The anvil is of the type useful to cooperate with a rotatable die cylinder in manufacturing paper blanks and the like. The anvil comprises compressible first (inner), hard second (intermediate) and hard third (outer) concentrically disposed and axially extending layers interbonded upon a core thereof. The second and third layers are of different hardnesses. The anvil is made by providing a hollow cylindrical shell, mounting the shell concentrically about the core, injecting a polymerizable fluid between the shell and core assemblage and holding the mounted assemblage for a time sufficient for substantially complete polymerization.
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: September 15, 1981
    Inventor: Don F. Von Schriltz
  • Patent number: 4289090
    Abstract: PCT No. PCT/US79/01131 Sec. 371 Date Dec. 26, 1979 Sec. 102(e) Date Dec. 26, 1979 PCT Filed Dec. 26, 1979 PCT Pub. No. WO81/01804 PCT Pub. Date July 9, 1981In electrostatic coating apparatus, a conveyor supporting a carrier having workpiece-support suspension means attached thereto. The carrier includes a rail member, a pair of electrically insulative sleeve members adjustably slidable on said rail, a metallic tubular member having an electrical contact thereon mounted on each sleeve, and the suspension means attached to the tubular members.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: September 15, 1981
    Assignee: Caterpillar Tractor Co.
    Inventors: Thomas L. Bagby, Gale C. Coombs
  • Patent number: D260697
    Type: Grant
    Filed: November 19, 1979
    Date of Patent: September 15, 1981
    Inventors: Susan A. Fitzgerald, Russell B. Watson, Jr.