Robert G Miller, Allen D Myers, Weldon L Phelps, Alfred W Sieving: Method and apparatus for controlling differentially driven wheel slip. Caterpillar Tractor Co, Krass Young & Schivley, August 10, 1982: US04344139 (63 worldwide citation)

A slip control system for vehicles having spaced apart differentially driven wheels (200,202) including means (220) for calculating wheel slip according to the ratio of wheel speeds, means (242,230,232) for entering a slip control mode wherein a braking force is applied to the slipping wheel and inc ...

Carroll R Cole, Warren L Ferriell, Richard E Guhl, Frederick C O Neill, Alfred W Sieving: Vehicle roll protective structure. Caterpillar Tractor Co, E C Goodale, May 4, 1976: US03954150 (19 worldwide citation)

A roll protective structure is provided in which a roof panel and floor panel are detachably mounted thereto. The mounting means are such that structural rigidity is maintained while insuring that there is no metal-to-metal contact between the respective panels and cab structure. The respective pane ...

Alfred W Sieving: Fabricated heavy-duty industrial wheel. Caterpillar Tractor Co, John W Grant, September 1, 1981: US04286825 (15 worldwide citation)

A drop center rim (11) of a fabricated heavy-duty industrial wheel (10) is fabricated from several pieces welded together and includes a backup ring (19) positioned within and welded to the inner periphery of a rim well (13). In some embodiments, each of a pair of reinforcing rings (34,36) has an L- ...

Phillip R Johnson, Peter F M Prillinger, Alfred W Sieving: Control system for an integral spring-loaded parking and service brake. Caterpillar Tractor Co, Phillips Moore Weissenberger Lempio & Strabala, December 21, 1976: US03999075 (13 worldwide citation)

A control system for a spring-applied service brake which can also be used as a parking brake. Pressure from the vehicle hydraulic system is normally used to release the brakes. In the event of a loss of the primary pressure from the hydraulic system, the control system switches automatically to use ...

Richard E Guhl, Alfred W Sieving: Vehicle dash assembly. Caterpillar Tractor Co, E C Goodale, March 30, 1976: US03946826 (12 worldwide citation)

A vehicle dash assembly is provided with pivoting mount means which allows for greater accessibility to the dash mounted instrument and associated control members. A latching mechanism permits the dash assembly to be supported in the open position for servicing operations.

Alfred W Sieving, James M Stanley: Dump body gate latch control system. Caterpillar Tractor Co, James R Bell, August 29, 1978: US04109963 (12 worldwide citation)

A gate latch control system for dump body vehicles includes a hoist control member positionable between lower, hold and raise positions, a hoist lock member, a latch position sensor and a gate latch member positionable between latch and unlatch positions. The hoist lock member is connected to mainta ...

Alfred W Sieving, James M Stanley: Selective anti-spin brake system. Caterpillar Tractor Co, J W Burrows, June 23, 1981: US04274680 (9 worldwide citation)

PCT No. PCT/US79/00597 Sec. 371 Date Aug. 13, 1979 Sec. 102(e) Date Aug. 13, 1979 PCT Filed Aug. 13, 1979 PCT Pub. No. WO81/00384 PCT Pub. Date Feb. 19, 1981

Frederick C O Neill, Alfred W Sieving: Transmission control console with recessed brake lever. Caterpillar Tractor Co, Phillips Moore Weissenberger Lempio & Strabala, December 14, 1976: US03997040 (3 worldwide citation)

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 upr ...

Peter F M Prillinger, Paul C Rosenberger, Alfred W Sieving: Brake master cylinder construction. Caterpillar Tractor Co, Phillips Moore Weissenberger Lempio & Majestic, October 11, 1977: US04052855 (2 worldwide citation)

Dual master cylinders are arranged to apply hydraulic pressure to a single set of vehicle brakes through a double check valve and single brake fluid conduit. A first of the master cylinders is actuated by compressed air in response to manipulation of an operator's service brake control, while the se ...