Loren C Smith

US Patent:

54071739, Apr 18, 1995

Filed:

Mar 2, 1994

Appl. No.:

8/204958

Inventors:

Loren Smith - Gainesville GA

Assignee:

The Lincoln Electric Company - Cleveland OH

International Classification:

F16K 2500
F16K 3150
F16K 4104

US Classification:

251 86

Abstract:

A valve for controlling the flow of a gas in a gas burning torch comprises a housing having a flow passageway therethrough, a valve seat in the passageway, and a valve stem carrying a ball valve element for engaging and disengaging the valve seat to respectively close and open said passageway. A rotatable operating knob for displacing the valve stem is isolated therefrom by a ball thrust bearing, and the valve stem is supported in the housing for rocking movement transverse to the stem axis.

US Patent:

62409433, Jun 5, 2001

Filed:

May 18, 1999

Appl. No.:

9/313896

Inventors:

Loren C. Smith - Gainesville GA

International Classification:

F16K 1110

US Classification:

137 1

Abstract:

The present invention reveals a gas mixing device which maintains constant gas ratios under both steady state and intermittent flow conditions, and reduces mixture errors inherent with multiple gauges by providing only one pressure gauge to read the inlet pressure at each inlet port. To accomplish its purpose, the device comprises a chamber defined by two opposing hollow core pistons, a downstream control valve, and an upstream delay valve. The control valve, assisted by one piston, opens and closes in response to the upper and lower operating pressure limits of a receiver. The delay valve, assisted by the other piston, closes after the control valve closes and opens abruptly only after a significant drop in pressure within the chamber, the result of the control valve having suddenly opened wide. A single pressure measuring assembly, rotatably mounted to the gas mixing device, communicates with each inlet port.

US Patent:

45454000, Oct 8, 1985

Filed:

Apr 21, 1983

Appl. No.:

6/488242

Inventors:

Arthur W. Gruber - Virginia Beach VA
Loren C. Smith - Virginia Beach VA

Assignee:

The BOC Group, Inc. - Montvale NJ

International Classification:

F16K 1700

US Classification:

137467

Abstract:

A pressure relieving device for use with gas flowmeters, pressure regulators and other fluid flow equipment is described. The device includes an O-ring and means for compressing and retaining the O-ring to provide a fluid-tight seal under normal operating pressure, but having a gap positioned such that the occurrence of an excessive pressure causes a portion of the O-ring to move into and through the gap to relieve the excessive pressure. A passage for enabling the fluid to contact the O-ring is sized to allow sufficient flow to relieve a fluid pressure substantially in excess of the normal operating pressure.