James David Moon

US Patent:

42585660, Mar 31, 1981

Filed:

Jul 2, 1979

Appl. No.:

6/053917

Inventors:

Elmer L. Decker - Long Beach CA
James Moon - Santa Ana CA

Assignee:

Decker Engineering Corporation - Long Beach CA

International Classification:

G01L 126

US Classification:

73141R

Abstract:

Load indicating apparatus in which a hydraulic load sensing unit is pivotally connected by coupling pins respectively with opposed members capable of relative movements under applied load forces, one of the coupling pins comprising an electronic load sensing unit in the form of a hollow pivot pin structure with internally mounted electrically interconnected strain gages operative in response to the applied load forces to generate an output signal. The pivot pin structure of the electronic load sensing unit is circumferentially oriented to a predetermined fixed operative position by a tool having the same coupled pivotal length as the hydraulic load sensing unit, and which is connectable between the opposed members in place of the hydraulic unit, said tool having a shoulder for initially engaging and locating an anchor bar on an adjacent surface of the associated opposed member in a position to circumferentially retain the hollow pin structure in a correct operating position, whereupon the anchor bar is permanently secured as by welding, the tool removed and the hydraulic sensing unit connected.

US Patent:

39734358, Aug 10, 1976

Filed:

Apr 18, 1975

Appl. No.:

5/569583

Inventors:

Elmer L. Decker - Long Beach CA
James Moon - Santa Ana CA

Assignee:

Decker Engineering - Long Beach CA

International Classification:

G01L 508

US Classification:

73143

Abstract:

The following specification discloses an anchor for a cable employed in rotary drilling rigs for oil well derricks. Tension on the anchored cable is measured through a load cell in connected relationship to the anchor. The anchor comprises a drum upon which the cable is wound and snubbed, and is journaled for partial rotative connection around a spindle on a base member. The drum is fabricated from weldments in a unique manner and employs a weigh beam that is triangularly braced to incorporate maximum strength to the welded drum to which it is attached. In addition thereto, the weigh beam is oriented for optimization of the transfer of rotative tension forces on the drum to the weigh beam and then to the load cell in a manner whereby the movement of the weigh beam describes a substantially uniform movement through its operative functions. The drum has a series of bolts located around the outer circumference of the drum with hollow rolling cylinders around each bolt to decrease the frictional engagement and provide more ready movement to the cable when it is being moved around the drum.

US Patent:

42286824, Oct 21, 1980

Filed:

Dec 4, 1978

Appl. No.:

5/966381

Inventors:

Elmer L. Decker - Long Beach CA
James Moon - Santa Ana CA
Paul R. Maxwell - Bakersfield CA

Assignee:

Decker Engineering Corporation - Long Beach CA

International Classification:

G01L 504

US Classification:

73143

Abstract:

A unique variable cable hoisting system utilizing a deadline load indicating apparatus in which the end terminus of the deadline is releasably anchored to a snubbing drum of the load indicating apparatus by quickly releasable hinge members which serve to restrain the end terminus against lateral movements and also to provide an abutment for engaging an abutment on the cable end terminus for opposing its axial movement under load forces and anchoring it to the snubbing drum of the deadline load indicating apparatus, when the cable system is being operatively utilized as a single fastline system. The quickly releasable feature concept, however, permits the terminus end of the deadline to be quickly detached from the snubbing drum and attached to a main hoisting drum as a second fastline to provide a double fastline hoisting system having the capability of doubling the hoisting speed.

US Patent:

41611179, Jul 17, 1979

Filed:

Dec 5, 1977

Appl. No.:

5/857583

Inventors:

Elmer L. Decker - Long Beach CA
James Moon - Santa Ana CA

Assignee:

Decker Engineering Corporation - Long Beach CA

International Classification:

G01L 126

US Classification:

73141R

Abstract:

A load sensing device for connection in load indicating apparatus between a pair of spaced members arranged to move apart under applied load tension forces, the load sensing device having a hydraulic load cell and an electronic load cell mechanically mounted in stacked series relationship and being respectively connected with a load indicator, wherein the applied tension load forces of the apparatus are mechanically converted into compression load forces for the actuation of the load cells. Manual selectors are also provided to permit the selective use of one or the other of the load cells as the sensing medium to energize its associated load indicator, and which includes a split ring for selectively by-passing the load forces with respect to the hydraulic load cell when utilizing the electronic load cell.

US Patent:

39994279, Dec 28, 1976

Filed:

Sep 24, 1975

Appl. No.:

5/616386

Inventors:

Elmer L. Decker - Long Beach CA
James Moon - Santa Ana CA

Assignee:

Decker Engineering Corporation - Long Beach CA

International Classification:

G01L 126

US Classification:

73141R

Abstract:

A load sensing unit for load indicating apparatus, the sensing unit comprising a hydraulic load cell and an electronic load cell connected in stacked relation between opposed members of the apparatus capable of relative movements under applied load forces, and wherein means are provided to operably selectively bypass the load forces with respect to each of said load cells, in order to operatively inactivate one of the load cells, and hold it in reserve as a back-up cell which is susceptible of immediate connection for the active operative other load cell.

US Patent:

43499520, Sep 21, 1982

Filed:

Apr 28, 1980

Appl. No.:

6/144063

Inventors:

Elmer L. Decker - Long Beach CA
James Moon - Santa Ana CA

Assignee:

Quadco Alaska, Inc. - Farmington NM

International Classification:

B23P 1904

US Classification:

2940206

Abstract:

An apparatus and method for the in situ field conversion of the components of pivotal couplings, particularly as utilized for connecting hydraulic load sensing devices into deadline cable anchoring apparatus, and which have become stuck and inoperative due to corrosion, into a coupling having a substantially non-corrosive pivot pin and associated bearing surfaces. The apparatus embodies a unique arrangement of components in which a yoke structure is selectively attached to one of the couplings of the hydraulic load sensing device of the cable anchoring apparatus, a hydraulic cylinder-piston is connected with the yoke in one operating mode to provide a pushing force for a connected pusher tool for forcibly removing the stuck pivot pin of the coupling, and wherein the cylinder-piston is thereafter reconnected with the yoke in another operative mode to provide a pulling force for a connected broaching tool for broaching the bearing bore surfaces for the pivot pin so as to increase their diameters to a size adapted to receive new bearing liners of a substantially non-corrosive material, and having an inner diameter of a size to receive a new pivot pin of a substantially non-corrosive material.