Paxton C Augustine

US Patent:

20070000882, Jan 4, 2007

Filed:

May 18, 2006

Appl. No.:

11/419116

Inventors:

Paxton AUGUSTINE - Kalamazoo MI, US
Mike Parran - Portage MI, US

International Classification:

B23K 10/00

US Classification:

219121550

Abstract:

A system and method for controlling a piston-cylinder assembly of a welding apparatus, said piston-cylinder assembly including a plurality of pressure chambers, wherein said piston-cylinder assembly is operatively coupled to at least one welding electrode of said welding apparatus so as to effect movement of said electrode in a pre-stroke and weld motion, comprises: connecting to a first port of the piston-cylinder assembly a first fluid pressure, said first port in communication with a first pressure chamber so as to effect the pre-stroke motion of the electrode; and connecting to a second port of the piston-cylinder assembly a second fluid pressure, said second port in communication with a second pressure chamber so as to effect the weld stroke motion of the electrode, wherein the second fluid pressure is different from the first fluid pressure.

US Patent:

20120186668, Jul 26, 2012

Filed:

Aug 10, 2010

Appl. No.:

13/387794

Inventors:

Robert Knepple - Kalamazoo MI, US
Andrew Bishop - Allegan MI, US
Paxton Augustine - Kalamazoo MI, US

International Classification:

F16K 17/00
F16K 24/02

US Classification:

137511

Abstract:

A pressure protection valve () is provided featuring a swivelable output port fitting () and a valve element () having a portion () configured to redirect a portion of the fluid flow toward the fixed seat () upon initial opening of the valve (). The valve element () is in a portion of the fitting that is inserted into a pressure container so as to be protected from external forces. The valve () may also include a vent cover () sealing the vent port (), the vent cover () movable to vent pressure through the vent port () when the valve () opens and to relieve pressure through the vent port () when the valve () closes.