David S Burnette

US Patent:

6797877, Sep 28, 2004

Filed:

Apr 28, 2003

Appl. No.:

10/425358

Inventors:

David Ruffin Burnette - Swarthmore PA

Assignee:

Jonn Maneely Company - Collingswood NJ

International Classification:

H02G 304

US Classification:

174 48, 174 65 R, 174 681, 138177

Abstract:

A labor saving system, method, and apparatus for connecting or coupling lengths of electric metallic tubing (âEMTâ). The invention uses couplings/connectors that have barbs that are designed to engage corresponding indentations on EMT to ensure proper installation. In one aspect, the invention is an EMT having: an EMT inner surface forming an EMT cavity; an EMT outer surface; an EMT first end; and at least one indentation in the EMT outer surface at or near the EMT first end, the indentation adapted to receive a corresponding barb from a sleeve device. In another aspect, the invention is a sleeve device comprising; a sleeve inner surface formning a sleeve cavity adapted to receive an end of an EMT; a sleeve outer surface; a first sleeve end; at least one barb on the sleeve inner surface at or near the first sleeve end, the barb adapted to engage a corresponding indentation on the EMT.

US Patent:

6903267, Jun 7, 2005

Filed:

Aug 4, 2004

Appl. No.:

10/910822

Inventors:

David Ruffin Burnette - Swarthmore PA, US

Assignee:

John Maneely Company - Collingswood NJ

International Classification:

H02G003/10

US Classification:

174 49, 174 681, 174 65 R, 174 48, 138177

Abstract:

A labor saving system, method, and apparatus for connecting or coupling lengths of electric metallic tubing (“EMT”). The invention uses couplings/connectors that have barbs that are designed to engage corresponding indentations on EMT to ensure proper installation. In one aspect, the invention is an EMT having: an EMT inner surface forming an EMT cavity; an EMT outer surface; an EMT first end; and at least one indentation in the EMT outer surface at or near the EMT first end, the indentation adapted to receive a corresponding barb from a sleeve device. In another aspect, the invention is a linking device for EMT includes a first section having a link inner surface forming a link cavity adapted to receive an end of an EMT, a link outer surface, and at least one barb access hole adapted to allow a corresponding barb of a sleeve device to extend therethrough when the sleeve device is fitted around the first section; a second section; and a separator between the first and second sections.

US Patent:

7005574, Feb 28, 2006

Filed:

Aug 4, 2004

Appl. No.:

10/910821

Inventors:

David Ruffin Burnette - Swarthmore PA, US

Assignee:

John Maneely Company - Collingswood NJ

International Classification:

H02G 3/04

US Classification:

174 48, 174 65 R, 174 681, 138177

Abstract:

A labor saving system, method, and apparatus for connecting or coupling lengths of electric metallic tubing (“EMT”). The invention uses couplings/connectors that have barbs that are designed to engage corresponding indentations on EMT to ensure proper installation. In one aspect, the invention is an EMT having: an EMT inner surface forming an EMT cavity; an EMT outer surface; an EMT first end; and at least one indentation in the EMT outer surface at or near the EMT first end, the indentation adapted to receive a corresponding barb from a sleeve device. In another aspect, the invention is a sleeve device comprising; a sleeve inner surface forming a sleeve cavity adapted to receive an end of an EMT; a sleeve outer surface; a first sleeve end; at least one barb on the sleeve inner surface at or near the first sleeve end, the barb adapted to engage a corresponding indentation on the EMT.

US Patent:

7005581, Feb 28, 2006

Filed:

Aug 4, 2004

Appl. No.:

10/910820

Inventors:

David Ruffin Burnette - Swarthmore PA, US

Assignee:

John Maneely Company - Collingswood NJ

International Classification:

H02G 3/04

US Classification:

174 683, 174 72 A, 248 49, 248 681

Abstract:

A labor saving system, method, and apparatus for connecting or coupling lengths of electric metallic tubing (“EMT”). The invention uses couplings/connectors that have barbs that are designed to engage corresponding indentations on EMT to ensure proper installation. In one aspect, the invention is an EMT having: an EMT inner surface forming an EMT cavity; an EMT outer surface; an EMT first end; and at least one indentation in the EMT outer surface at or near the EMT first end, the indentation adapted to receive a corresponding barb from a sleeve device. In another aspect, the invention is a sleeve device comprising; a sleeve inner surface forming a sleeve cavity adapted to receive an end of an EMT; a sleeve outer surface; a first sleeve end; at least one barb on the sleeve inner surface at or near the first sleeve end, the barb adapted to engage a corresponding indentation on the EMT.