Jerry Don Gilbert

Address:

PO Box 1876, Durant, OK 74702

Phone:

9038681767

VIN:

1D4GP45R37B113144

Make:

DODGE

Model:

CARAVAN

Year:

2007

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:

45952418, Jun 17, 1986

Filed:

Apr 16, 1984

Appl. No.:

6/600353

Inventors:

Jerry F. Gilbert - Dallas TX
Jonathan J. Gilbert - Dallas TX
Albert J. Gilbert - Dallas TX

International Classification:

E21C 3518

US Classification:

299 93

Abstract:

A non-rotatable digging tooth has a forward working portion designed to excavate dirt, with a rearward cylindrical shank portion of a configuration to be removably received within the circular bore of a support block. The block includes a forward projection which forms a shoulder having a face positioned substantially parallel to the axial centerline of the bore. The juncture between the shank and digging part of the tooth is provided with a shoulder made complementary respective to the shoulder on the support block so that the two shoulders confront one another. The confronting shoulders abuttingly engage one another and provide a resisting force which prevents rotation of the tooth respective to the block. The block can be attached to various different trenching and digging apparatus.