Jeffrey N Gilbert

US Patent:

53601572, Nov 1, 1994

Filed:

Aug 31, 1993

Appl. No.:

8/114043

Inventors:

Jeffrey L. Gilbert - Van Nuys CA
David A. Gutow - Thousand Oaks CA

Assignee:

The United States of America as represented by the Administrator of the
National Aeronautics and Space Administration - Washington DC

International Classification:

B23K 3702

US Classification:

228 45

Abstract:

The present invention is directed to a welding nozzle position manipulator. The manipulator consists of an angle support to which the remaining components of the device are attached either directly or indirectly. A pair of pivotal connections attach a weld nozzle holding link to the angle support and provide a two axis freedom of movement of the holding link with respect to the support angle. The manipulator is actuated by a pair of adjusting screws angularly mounted to the angle support. These screws contact a pair of tapered friction surfaces formed on the upper portion of the welding nozzle holding link. A spring positioned between the upper portions of the support angle and the holding link provides a constant bias engagement between the friction surfaces of the holding link and the adjustment screws, so as to firmly hold the link in position and to eliminate any free play in the adjustment mechanism. The angular relationships between the adjustment screws, the angle support and the tapered friction surfaces of the weld nozzle holding link provide a geometric arrangement which permits precision adjustment of the holding link with respect to the angle support and also provides a solid holding link mount which is resistant to movement from outside forces.

US Patent:

20210215271, Jul 15, 2021

Filed:

Jul 22, 2020

Appl. No.:

16/935757

Inventors:

Jeffrey Allan Gilbert - Las Vegas NV, US

International Classification:

F16L 1/038
F16L 9/08

Abstract:

A cast-in-place concrete pipe system comprising at least one outer barrel, at least one inner barrel, at least one reinforcement dowel used to create a reinforcement cage, at least one reinforcement wall separator, at least one coupling ring, at least one fill port, one or more barrel support stands and a concrete mixture that is poured into the fill port to reside in the space between the outer barrel and the inner barrel. The cast-in-place concrete pipe system is designed to create a single pipe unit which is chemically resistant and configurable to numerous underground pipe, manhole and utility system needs.

US Patent:

20190112778, Apr 18, 2019

Filed:

Oct 16, 2017

Appl. No.:

15/784450

Inventors:

Jeffrey Allan Gilbert - Henderson NV, US

International Classification:

E02D 29/14
B65D 90/10
E02D 29/12

Abstract:

A permanent on-site manhole casting system consisting of three basic components (a top, a base and a main barrel) which comprise an outer barrel, an inner barrel, a plurality of tie strips used to connect said outer and inner barrels, a coupling mechanism which connects the three basic components, and a concrete mixture that is poured into the space between the outer and inner barrels and allowed to set and cure is provided. The on-site manhole-casting system is designed to create a single manhole unit which is chemically resistant and configurable to numerous manhole and utility system needs.