John O Walter

US Patent:

6307179, Oct 23, 2001

Filed:

Oct 15, 1999

Appl. No.:

9/419110

Inventors:

John Walter - Bradenton FL

Assignee:

American Torch Tip Company - Bradenton FL

International Classification:

B23K 924

US Classification:

21913742

Abstract:

A welding gun contact tip which seats within a retaining member and in two different seating locations relative to the contact member. The contact tip includes an interwoven-double-start thread having two thread cuts which start 180 degrees from one another as measured around the circumference of the contact tip. Additionally, the retaining member includes an interwoven-double-start thread having two thread cuts which start 180 degrees from one another as measured around the circumference of the contact tip. Because of the configuration of the interwoven-double-start threads, the two seating locations of the contact tip are 180 degrees apart thereby enabling the contact tip to be used twice as long as a conventional contact tip which includes a single cut thread. Further, the contact tip and retaining member include mating frustum surfaces which are configured and dimensioned so that the contact tip seats within the retaining member with less than one turn of the contact tip relative to the retaining member. Therefore, the contact tip may be quickly inserted in, and removed from, the retaining member.

US Patent:

49844148, Jan 15, 1991

Filed:

Feb 7, 1990

Appl. No.:

7/476245

Inventors:

George D. Pfaffmann - Farmington Hills MI
Charles S. Kubis - Palso Heights IL
John P. Currie - Boaz AL
Norbert R. Balzer - Warren MI
John Walter - Evergreen Park IL
Graham R. Adams - Boaz AL

Assignee:

Continental Can Company, Inc. - Norwalk CT

International Classification:

B65B 5122
B65B 5114
B65B 728

US Classification:

53478

Abstract:

A method and apparatus for sealing a flat lid with a lower layer of heat bondable material onto the upper, generally flat surface of a flange extending around the periphery of an access opening in a container of the type used to store a substance susceptible to deterioration when exposed to atmosphere for a prolonged time such as prepared foods, which method and apparatus moves a separate and distinct heating unit with a downwardly facing heating ring in a preselected path, preferably circular in shape, between first and second positions, includes a generally fixed high frequency power supply for energizing said heating ring, connects this fixed high frequency power supply to the individual heating rings of the moving heating unit only when the unit is moving between the first and second positions, and energizes the power supply only while the heating unit is moving between the first and second positions. The ring is forced against the lid as the power supply is energized and is released from the ring from the lid after the power supply has been de-energized and before the moving heating unit reaches the second position. Preferably the ring is an inductor and the plurality of heating units are carried by a turret to define individual heating stations on the turret which stations rotate to selectively energize the individual heating units by the single fixed high frequency power supply whereby single power supply energizes a plurality of separate heating stations.

US Patent:

41306236, Dec 19, 1978

Filed:

Apr 12, 1976

Appl. No.:

5/675875

Inventors:

John O. Walter - Vandalia OH

Assignee:

General Motors Corporation - Detroit MI

International Classification:

B29C 300
B29F 500

US Classification:

264293

Abstract:

In accordance with a preferred embodiment of this invention, a linear stitching design having improved definition is embossed onto the surface of a hot, thermoplastic sheet. During embossing the sheet is placed over a special anvil formed of an elastomer strip arranged in the pattern of the stitching and inlaid in a rigid support member. The support member confines the elastomeric anvil member such that during the embossing operation the anvil promotes more uniform distribution of pressure on the sheet and forces it into full contact with the embossing die.

US Patent:

49413066, Jul 17, 1990

Filed:

Oct 7, 1988

Appl. No.:

7/254837

Inventors:

George D. Pfaffmann - Farmington Hills MI
Norbert R. Balzer - Warren MI
Charles S. Kubis - Palso Heights IL
John Walter - Evergreen Park IL
John P. Currie - Boaz AL
Graham R. Adams - Boaz AL

Assignee:

Continental Can Company, Inc. - Norwalk CT

International Classification:

B65B 5122
B65B 5114
B65B 728

US Classification:

53306

Abstract:

A method and apparatus for sealing a flat lid with a lower layer of heat bondable material onto the upper, generally flat surface of a flange extending around the periphery of an access opening in a container of the type used to store a substance susceptible to deterioration when exposed to atmosphere for a prolonged time such as prepared foods, which method and apparatus moves a separate and distinct heating unit with a downwardly facing heating ring in a preselected path, preferably circular in shape, between first and second positions, includes a generally fixed high frequency power supply for energizing said heating ring, connects this fixed high frequency power supply to the individual heating rings of the moving heating unit only when the unit is moving between the first and second positions, and energizes the power supply only while the heating unit is moving between the first and second positions. The ring is forced against the lid as the power supply is energized and is released from the ring from the lid after the power supply has been de-energized and before the moving heating unit reaches the second position. Preferably the ring is an inductor and the plurality of heating units are carried by a turret to define individual heating stations on the turret which stations rotate to selectively energize the individual heating units by the single fixed high frequency power supply whereby single power supply energizes a plurality of separate heating stations.

US Patent:

50251236, Jun 18, 1991

Filed:

Dec 24, 1990

Appl. No.:

7/630802

Inventors:

George D. Pfaffmann - Farmington Hills MI
Charles S. Kubis - Palso Heights IL
John P. Currie - Boaz AL
Norbert R. Balzer - Warren MI
John Walter - Evergreen Park IL
Graham R. Adams - Boaz AL

Assignee:

Continental Can Company, Inc. - Norwalk CT

International Classification:

H05B 610

US Classification:

219 1075

Abstract:

A modular type replaceable heating unit with a downwardly facing heating ring for use in an apparatus for sealing a flat lid with a lower layer of heat bondable material onto the upper, generally flat surface of a flange extending around the periphery of an access opening in a container. The apparatus moves the heating unit between first and second positions. The apparatus includes a generally fixed high frequency power supply for energizing the heating ring, connecting the high frequency power supply to the heating ring only while the heating unit is moving between the first and second positions. The ring is forced against the lid as the power supply is energized and is released from the lid after the power supply has been de-energized. Preferably the ring is an inductor. A plurality of these heating units is carried by a turret to define individual heating stations on the turret which stations rotate to selectively energize the individual heating units.

US Patent:

49968262, Mar 5, 1991

Filed:

Feb 7, 1990

Appl. No.:

7/476247

Inventors:

George D. Pfaffmann - Farmington Hills MI
Norbert R. Balzer - Warren MI
Charles S. Kubis - Palso Heights IL
John Walter - Evergreen Park IL

Assignee:

Continental Can Company, Inc. - Norwalk CT

International Classification:

B65B 5122
B65B 5114
B65B 728

US Classification:

53478

Abstract:

A method and apparatus for sealing a flat lid with a lower layer of heat bondable material onto the upper, generally flat surface of a flange extending around the periphery of an access opening in a container of the type used to store a substance subsceptible to deterioration when exposed to atmosphere for a prolonged time such as prepared foods, which method and apparatus moves a separate and distinct heating unit with a downwardly facing heating ring in a preselected path, preferably circular in shape, between first and second positions, includes a generally fixed high frequency power supply for energizing said heating ring, connects this fixed high frequency power supply to the individual heating rings of the moving heating unit only when the unit is moving between the first and second positions, and energizes the power supply only while the heating unit is moving between the first and second positions. The ring is forced against the lid as the power supply is energized and is released from the ring from the lid after the power supply has been de-energized and before the moving heating unit reaches the second position. Preferably the ring is an inductor and the plurality of heating units are carried by a turret to define individual heating stations on the turret which stations rotate to selectively energize the individual heating units by the single fixed high frequency power supply whereby single power supply energizes a plurality of separate heating stations.