Olen Lee Marshall

US Patent:

7516774, Apr 14, 2009

Filed:

Nov 15, 2007

Appl. No.:

11/940525

Inventors:

David R. Thomason - Harrison AR, US
David E. Bumpus - Brookline NH, US
Danny S. Alford - Harrison AR, US
Olen L. Marshall - Harrison AR, US

Assignee:

Pace Industries, LLC - Fayetteville AR

International Classification:

B22D 46/00

US Classification:

164153, 164267, 164312

Abstract:

A method for operating an automated reciprocator for applying lubricant in a die casting system. As a reciprocator is moved between two die halves and a fluid is applied to the dies with the reciprocator, a safety bar is moved ahead of the reciprocator. Any objects in the path of the reciprocator are detected by contact with the safety bar. If the safety bar contacts an object as the reciprocator is moving down, a sensor signals a control system and the reciprocator is stopped.

US Patent:

7766070, Aug 3, 2010

Filed:

Apr 13, 2009

Appl. No.:

12/422869

Inventors:

David R. Thomason - Harrison AR, US
David E. Bumpus - Brookline NH, US
Danny S. Alford - Harrison AR, US
Olen L. Marshall - Harrison AR, US

Assignee:

Pace Industries, LLC - Fayetteville AR

International Classification:

B22D 17/20
B22D 17/32
B22D 46/00

US Classification:

164 72, 164113, 164153, 164312

Abstract:

A method for operating an automated reciprocator for applying lubricant in a die casting system. As a reciprocator is moved between two die halves and a fluid is applied to the dies with the reciprocator, a safety bar is moved ahead of the reciprocator. Any objects in the path of the reciprocator are detected by contact with the safety bar. If the safety bar contacts an object as the reciprocator is moving down, a sensor signals a control system and the reciprocator is stopped.

US Patent:

20060005938, Jan 12, 2006

Filed:

Jul 8, 2004

Appl. No.:

10/886780

Inventors:

David Thomason - Harrison AR, US
David Bumpus - Brookline NH, US
Danny Alford - Harrison AR, US
Olen Marshall - Harrison AR, US

International Classification:

B22C 19/04

US Classification:

164153000

Abstract:

An automated reciprocator for applying lubricant to the cavity of a die casting system having a safety bar for preventing the reciprocator from injuring a person or damaging equipment which may be present in the reciprocator travel path. The safety bar is movably carried on the lower side of the reciprocator and includes a sensor to detect relative movement between the safety bar and the reciprocator. The proximity sensor is coupled to a control system. If the safety bar contacts an object as the reciprocator is moving down, the sensor signals the control system and the reciprocator is stopped.