Henry B Arnette

US Patent:

D3547531, Jan 24, 1995

Filed:

Oct 16, 1992

Appl. No.:

D/000516

Inventors:

Elbert D. Turner - Charlotte NC
Henry K. Arnette - Fort Mill SC
Jan J. Reiss - Matthews NC
Graylon D. Smith - Fort Mill SC

Assignee:

Textron Inc. - Providence RI

US Classification:

D15 7

US Patent:

52443515, Sep 14, 1993

Filed:

Sep 30, 1992

Appl. No.:

7/954752

Inventors:

Henry K. Arnette - Fort Mill SC

Assignee:

Textron Inc. - Providence RI

International Classification:

F04D 1502

US Classification:

417 38

Abstract:

A combined air vent and pressure switch are provided at the inlet of a liquid pump. The air vent is adapted to exhaust air from a supply line, such as a garden hose, and thereby substantially prevent the pump from running dry before water from the hose reaches the inlet. The pressure switch is connected to the motor of the pump and is adapted to signal the motor to stop if the pressure switch senses a low pressure condition at the pump inlet, such as when there is inadequate liquid or no liquid at the pump inlet. The features of the air vent and pressure switch combine to prevent the pump from being damaged by running the pump without adequate liquid supply.

US Patent:

D3466477, May 3, 1994

Filed:

Oct 16, 1992

Appl. No.:

D/000581

Inventors:

Henry K. Arnette - Fort Mill SC
Jan J. Reiss - Matthews NC
Graylon D. Smith - Fort Mill SC

Assignee:

Textron Inc. - Providence RI

US Classification:

D23225