Robert Wilson Sheldon

US Patent:

52302598, Jul 27, 1993

Filed:

Nov 4, 1991

Appl. No.:

7/787844

Inventors:

Robert G. Sheldon - Marietta GA

Assignee:

Lockheed Corporation - Calabasas CA

International Classification:

B21D 4704

US Classification:

761011

Abstract:

A method of making a structure having a plurality of serrations on a surface is provided wherein each serration is positioned at a specific location along the surface, has first and second sides with specific lengths, and has effectively zero radius internal and external corners. In detail, the method comprising the steps of: providing a plurality of sheets of material having opposed principal surfaces, each said sheet having a thickness equal to the specific thickness of one of the first sides of the serrations; stacking said plurality of sheets of material in a staggered relationship such that said thicknesses of said sheets of material are in an order corresponding to the order of the first sides of the serrations and the distance between the ends of the adjacent ends of said sheets of material are in an order corresponding to the second sides of the serrations; and joining said stacked plurality of sheets of material together forming a joined stack with at least one end having a serrated surface thereon.

US Patent:

43844030, May 24, 1983

Filed:

Aug 18, 1980

Appl. No.:

6/179098

Inventors:

Robert W. Sheldon - Atlanta GA
Richard W. Mullin - Eufaula AL
Jesse F. Bowden - Eufaula AL

International Classification:

B23P 1900

US Classification:

29798

Abstract:

A positioning tool for use in attaching the cover panels to support members in a prefabricated building system using self-drilling and self-tapping fasteners and a locking member which includes locating means for positioning the locking member behind the overlapped cover panels and guide means for locating the fastener against the support member opposite the locking member so that the fastener is aligned with the locking member and, as the fastener is installed by self-drilling and self-tapping its way through the juxtaposed support member and cover panels, the locking member will be threadedly engaged by the fastener to hold the cover panels against the support member between the head of the fastener and the locking member.

US Patent:

43696090, Jan 25, 1983

Filed:

Aug 18, 1980

Appl. No.:

6/178953

Inventors:

Robert W. Sheldon - Atlanta GA
Richard W. Mullin - Eufaula AL

International Classification:

E04B 552

US Classification:

52478

Abstract:

A fastener assembly for use in attaching cover panels to support members in a prefabricated building system where the cover panels and support members have a prescribed total thickness at the point of attachment including a self-drilling and self-tapping screw where the self-tapping thread on the screw terminates a prescribed distance from the head of the screw which is substantially equal to the total thickness of the support member and cover panels so that the screw will self-drill and self-tap its way through the support member and the cover panels and the self-tapping thread will release the support member nd the cover panels when the head on the screw is seated against the support member so that the screw is free to rotate with respect to the support member and cover panel; and a locking member adapted to be threadedly engaged by the screw behind the cover panels to clamp the cover panels onto the support member between the locking member and the head of the screw.

US Patent:

59763400, Nov 2, 1999

Filed:

Oct 28, 1997

Appl. No.:

8/959134

Inventors:

Robert G. Sheldon - Woodstock GA
Eric G. Smith - Marietta GA

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

C25D 110

US Classification:

205 70

Abstract:

A method is disclosed for fabricating a low cost, elevated-temperature resistant part with a serrated surface and elevated-temperature structural properties similar to (within fifty percent (50%)) a superalloy material comprising the steps of: forming a master tool having the desired serrated surface; electro-forming the elevated-temperature resistant part by depositing three alloying elements comprising nickel, cobalt and manganese onto the master tool in the amounts of about 60%-70% nickel, 40%-30% cobalt and 0. 05%-0. 10% manganese; and separating the elevated-temperature resistant part from master tool.

US Patent:

62714996, Aug 7, 2001

Filed:

Sep 14, 1999

Appl. No.:

9/395502

Inventors:

Marshall Gordon Jones - Scotia NY
Robert Gerard Sheldon - Woodstock GA
Carl Edward Erikson - Schenectady NY

Assignee:

Lockheed Martin Corp. - Bethesda MD

International Classification:

B23K 2600

US Classification:

21912164

Abstract:

A method for welding a first metallic material to a second metallic material where at least one of the first and second metallic materials have at least one surface which has an optical pattern thereon. The method comprises the steps of: arranging the first and second metallic materials into a final position in which they will be welded along a joint; directing focused energy at the joint from a Nd-YAG pulsed laser having an energy output in a range from about 10 Joules to about 30 Joules and a pulse length in a range from about 5 ms to about 9 ms; and traversing the joint at a predetermined welding speed while directing the focused energy such that a weld spot overlap in a range from about 50% to about 90% is maintained, resulting in a welded joint wherein a heat effect zone about the welded joint is minimized further resulting in minimal distortion and damage to an area of the optical pattern proximate to the welded joint. Also provided is a method for repairing any weld defects in the welded joint with the same Nd-YAG pulsed laser.

US Patent:

20180066437, Mar 8, 2018

Filed:

Sep 1, 2017

Appl. No.:

15/694274

Inventors:

- Norcross GA, US
Timothy Bilbo - Atlanta GA, US
Gregory J. Foster - Chicago IL, US
Robert W. Sheldon - Winnetka IL, US

Assignee:

OMNIMAX INTERNATIONAL, INC. - Norcross GA

International Classification:

E04D 13/072
F16B 2/22

Abstract:

A universal gutter hanger assembly includes a hanger body having a front end and a back end. A front attachment feature at the front end of the hanger body is configured to engage with a front end of the gutter. A back attachment feature at the back end is configured to engage with a back end of the gutter. The back attachment includes a clip extending upwardly from the back end and configured to engage with gutters having various configurations of back ends. In some examples, the hanger body includes an arcuate-shaped bottom surface that extends from the front end to the back end.