Jerry V Gilbert

US Patent:

55778089, Nov 26, 1996

Filed:

Apr 3, 1995

Appl. No.:

8/414680

Inventors:

Jerry F. Gilbert - Southlake TX

Assignee:

Trencor, Inc. - Grapevine TX

International Classification:

E01C 2312

US Classification:

299 392

Abstract:

A ground supported vehicle for excavating the ground is extremely large and must be dismantled into several sections in order to transport it down a roadway or a railway. The vehicle has a mid-section that is located between opposed ends. A digging apparatus wider than the vehicle is attached within a lower part of the vehicle mid-section, and can bear the entire weight of the vehicle in order to apply an unusually heavy load onto the digging apparatus. The digging apparatus is rotatable mounted on a massive shaft that is anchored at the center of gravity of the vehicle. Digging teeth are arranged on the outside surface of the digging apparatus so that the teeth dig into and excavates the ground when moved against the ground while rotating. A diesel motor is connected by a special power train for providing the tremendous power requirements of the rotating shaft of the digging apparatus, while a smaller motor provides the power for operating the conveyors, for raising and lowering the digging apparatus; and for propelling the vehicle along the ground. An elongated boom has a pivoted end mounted on a special gooseneck that extends from one end of the vehicle.

US Patent:

RE350885, Nov 14, 1995

Filed:

Jul 23, 1993

Appl. No.:

8/106151

Inventors:

Jerry F. Gilbert - Southlake TX

Assignee:

Trencor Jetco, Inc. - Grand Prairie TX

International Classification:

E02F 312

US Classification:

37360

Abstract:

A trenching machine has an elongated chain type digging implement that is pivotally mounted for vertical adjustment and movably mounted to a main frame thereof for lateral adjustment. The pivot coincides with the power shaft, and the elongated chain type digging implement is supported so it can be moved laterally in order to position the digging implement adjacent either side of the digging machine main frame and anywhere therebetween to excavate closely adjacent to buildings and other structures. The mechanism for moving the digging implement can be manually actuated by a hand crank arrangement. The main frame of the machine can be tilted laterally to either side to align the digging implement to excavate a vertical ditch. The tilting of the machine also makes it easier to manually move the digging implement laterally.

US Patent:

D396130, Jul 31, 1990

Filed:

Apr 17, 1987

Appl. No.:

7/039664

Inventors:

Jerry F. Gilbert - Grand Prairie TX

US Classification:

D15 23

US Patent:

57881685, Aug 4, 1998

Filed:

Mar 5, 1997

Appl. No.:

8/811422

Inventors:

Jerry F. Gilbert - Southlake TX
John Gilbert - Southlake TX
William Neal Brown - Duncanville TX
Jack Smith - The Colony TX

Assignee:

Trencor, Inc. - Grapevine TX

International Classification:

B02C 2102

US Classification:

241101742

Abstract:

A self-loading mobile crusher system for reducing the size of debris disposed in a pile includes a vehicle having first and second sides adapted for movement on the surface of the debris pile. The vehicle includes first and second surface engaging devices disposed on each side of the vehicle. A debris crushing assembly is connected to the vehicle for movement with the vehicle. A debris transferring assembly is connected to the vehicle for movement with the vehicle for transferring debris from the pile to the crushing assembly. Disposed between the vehicle sides, adjacent the transferring assembly and connected to the vehicle for movement with the vehicle is a control structure for controlling passage of debris from the debris pile forward of the surface engaging devices to a position under the surface engaging devices.

US Patent:

55755380, Nov 19, 1996

Filed:

Jun 1, 1995

Appl. No.:

8/457991

Inventors:

Jerry F. Gilbert - Southlake TX
Jack D. Smith - The Colony TX

Assignee:

Astec Industries, Inc. - Chattanooga TN

International Classification:

E01C 2309
E02F 508

US Classification:

299 392

Abstract:

A rock saw has a cutting wheel and a conveyor assembly capable of retrieving automatically essentially all materials excavated by the cutting wheel and of discharging the retrieved materials into an adjacent truck or the like. The conveyor assembly includes a loading conveyor which is movable from a raised transport position to a lowered operative position. When in its operative position, an inlet end of the loading conveyor is positioned on the ground in a discharge region of the cutting wheel and is biased into engagement with the ground so as not to bounce up and down in operation but so as to ride over rocks and other obstructions without damaging the conveyor. The cutting wheel is both pivotable and slidable with respect to the vehicle mainframe so as to be capable of cutting trenches of radically different depths while still assuring retrieval of essentially all excavated materials by the loading conveyor.

US Patent:

50706322, Dec 10, 1991

Filed:

May 8, 1991

Appl. No.:

7/697137

Inventors:

Jerry F. Gilbert - Plano TX

Assignee:

Trencor Jetco, Inc. - Grand Prairie TX

International Classification:

F02F 506

US Classification:

37 90

Abstract:

A trenching machine has an elongated chain type digging implement that is pivotally mounted for vertical adjustment and movably mounted to a main frame thereof for lateral adjustment. The pivot coincides with the power shaft, and the elongated chain type digging implement is supported so it can be moved laterally in order to position the digging implement adjacent either side of the digging machine main frame and anywhere therebetween to excavate closely adjacent to buildings and other structures. The mechanism for moving the digging implement can be manually actuated by a hand crank arrangement. The main frame of the machine can be tilted laterally to either side to align the digging implement to excavate a vertical ditch. The tilting of the machine also makes it easier to manually move the digging implement laterally.

US Patent:

54717710, Dec 5, 1995

Filed:

Jun 10, 1994

Appl. No.:

8/258048

Inventors:

Jerry F. Gilbert - Grapevine TX

International Classification:

E02F 506

US Classification:

37352

Abstract:

A ground supported excavating machine of the type having a main frame and a prime mover for propelling the machine along the ground, and a boom supported from the frame that has an endless chain type digging member rotated by sprockets on a head shaft that is mounted at one end of the boom, and on a tail wheel shaft mounted at the opposed end thereof, to provide a lower run that engages the lower surface of the boom. The interior of the boom is made into a liquid container that communicates with the bottom surface of the boom, which is filled with sufficient liquid to transfer heat from the relatively hot boom lower surface to a relatively cold boom surface. A wear plate assembly is mounted to the lower surface of the boom and covers the lower surface of the boom near the tail wheel sprockets, and isolates the upper surface of the wear plates from the lower surface of the boom by suspending the wear plates for loosely contacting the boom lower surface with very little force respective to the force with which the lower run engages the lower surface of the boom while digging.

US Patent:

54975670, Mar 12, 1996

Filed:

May 19, 1994

Appl. No.:

8/245942

Inventors:

Jerry F. Gilbert - Grapevine TX

International Classification:

E02F 500

US Classification:

37352

Abstract:

An improved excavating machine for digging an unusually wide ditch having a boom that supports a plurality of chain type digging apparatus. There is a head shaft at one end of the boom and a tail shaft at the opposed end of the boom. An intermediate shaft is supported on the boom at a location between the tail and head shaft. Spaced endless digging chains are meshed with sprockets on the head shaft and selected ones of the tailwheel shaft sprockets to provide an upper run and a lower run of endless digging chain which forms an endless central digging and conveying member by which excavated material is translocated from the ground to a lateral conveyor on the machine. Spaced endless intermediate digging chains are meshed with the outermost of sprockets on the tail and intermediate shafts to form opposed, endless, outer digging and conveying members. The marginal far end of the boom is bifurcated to provide a longitudinally extending slot through which the intermediate drive chain for rotating the intermediate shaft extends. The intermediate shaft extends laterally through the boom and between the upper and lower runs of the central digging and conveying members, and increases the width of the ditch an amount equal to the combined width of the central and the opposed endless outer digging and conveying members.