1
Eugene L Helton, Walter B Miller: Multi-material ripper tip. Caterpillar Tractor Co, Phillips Moore Weissenberger Lempio & Strabala, January 20, 1976: US03932952 (115 worldwide citation)

A multi-material earthworking ripper tip having a leading nose portion comprised of a material having greater wear resistance and strength at elevated temperatures than the material which comprises the rearward shank supporting portion of the tip. In one embodiment, a bi-metallic nose portion is ine ...


2
Stamos I Papasideris: Engine stop-start electrical circuit. Caterpillar Tractor Co, Phillips Moore Weissenberger Lempio & Majestic, July 10, 1979: US04160916 (93 worldwide citation)

An electrical circuit for use with an engine having an alternator has a relay to control a solenoid to properly shut down a diesel engine and includes openable and closable contacts for supplying power to another portion of the circuit, it being ensured that such contacts remain closed when either t ...


3
Roland F Bill, Edward G Prohaska, Bernard A Wabel: Prepared joint for a tube fitting. Caterpillar Tractor Co, Frank L Hart, February 28, 1978: US04076287 (90 worldwide citation)

An improved prepared joint is provided on a fitting for mechanically joining it to the end of a metal tube. The fitting has a grooved bore and a bore extending end portion for projecting the bore a predetermined distance beyond its grooved portion so that during radial expansion of the tube into the ...


4
John H McDaniel, Harry W Sinnard, Robert W Thomas: Machine tool with protective light curtain and work stock holding mechanism. Caterpillar Tractor Co, Phillips Moore Weissenberger Lempio & Majestic, January 31, 1978: US04070940 (90 worldwide citation)

A shear machine having a blade for cutting successive increments of material from flat sheet work stock has a cutting zone guarded by a curtain of light. Photosensitive means actuates a brake to stop blade motion if an object extends through the light curtain towards the cutting zone. Hold-down mech ...


5
Thomas T Stevenson, John F Szentes, Marios C Zenios: Engine control system. Caterpillar Tractor Co, Stephen L Noe, January 18, 1983: US04368705 (81 worldwide citation)

An electronic engine control system (10) utilizing a digital microprocessor (30) for controlling the timing mechanism (13) and fuel pump rack limit (23) to set the engine timing of, and maximum allowable rate of fuel delivery to, an interval combustion engine (11) so that maximum engine performance ...


6
Karl W Karstensen: Expansion control ring for a turbine shroud assembly. Caterpillar Tractor Co, Phillips Moore Weissenberger Lempio & Majestic, February 17, 1981: US04251185 (76 worldwide citation)

A turbine shroud assembly includes an expansion control ring to support segmented rotor shrouds. The expansion control ring is restrained by adjacent manifold rings, yet free to thermally expand radially outwardly without loss of axial alignment with the associated turbine wheel. The ported manifold ...


7
Preston L Gale, Eugene L Helton, Robert C Mueller: Wear-resistant alloy, and method of making same. Caterpillar Tractor Co, Phillips Moore Weissenberger Lempio & Strabala, July 20, 1976: US03970445 (76 worldwide citation)

A wear-resistant alloy comprising boron, chromium and iron having maximum hardness for a given composition is produced by rapidly cooling and solidfying spheroidal particles of the molten alloy mixture. The resultant solid particles are then cast in the desired form, or incorporated into a composite ...


8
Purcell Robert J, Wehr Kenneth E: Triangular track resilient bogie suspension. Caterpillar Tractor Co, Phillips Moore Weissenberger Lempio & Strabala, October 15, 1974: US3841424 (71 worldwide citation)

An assembly for supporting and driving a vehicle with a crawler track has the track chain engaged on a pair of spaced apart idler wheels and a drive sprocket situated between the idlers and upwardly therefrom whereby the chain is maintained in a triangular configuration with the sprocket and drive e ...


9
Donald L Bianchetta: Fluid motor control system providing speed change by combination of displacement and flow control. Caterpillar Tractor Co, Phillips Moore Weissenberger Lempio & Majestic, October 19, 1982: US04354420 (70 worldwide citation)

A fluid motor control system (11) assures that automatic changes of motor displacement, which are initiated by occurrence of a predetermined operational condition in the system (11), result in a change of motor speed of the desired magnitude. Flow adjustment elements (76) respond to a displacement i ...


10
Gene R Klett, Jerome A Thies: Releasable corner tooth assembly. Caterpillar Tractor Co, Charles E Lanchantin Jr, January 8, 1980: US04182057 (67 worldwide citation)

An earthmoving implement (10) has a sidewall member (12) and a cutting edge (14), and an adapter (26) is releasably secured thereto. The sidewall member (12) has a step (20), and the adapter (26) has a pair of outer and inner mounting portions (35, 36) defining a first slot (38) therebetween. The ad ...