Donald W Carnes

US Patent:

53177843, Jun 7, 1994

Filed:

Aug 10, 1992

Appl. No.:

7/930318

Inventors:

William K. Glenn - Anderson SC
Donald W. Carnes - Anderson SC
James F. Barnes - Anderson SC

Assignee:

Ryobi Motor Products Corp. - Easley SC

International Classification:

A47L 534

US Classification:

15356

Abstract:

A vacuum power head is provided which has a bare floor feature. A vacuum cleaner head assembly defines a vacuum chamber which contains a power driven rotary brush. Located outside of the vacuum chamber adjacent the rotary brush is a generally U-shaped trailing brush. The trailing brush cooperates with a height adjustment mechanism which is movable between a deep carpet position and a bare floor position. As the height adjustment mechanism of the head assembly is moved toward the bare floor position, the trailing brush is automatically moved to an extended position into engagement with the floor. When the height adjustment mechanism is moved from the bare floor position, a spring biases the trailing brush toward a retracted position within the head assembly. An actuator cooperates with the height adjustment mechanism to automatically move the trailing brush between the retracted position and the extended position in response to movement of the height adjustment mechanism.

US Patent:

54775876, Dec 26, 1995

Filed:

Dec 30, 1993

Appl. No.:

8/175969

Inventors:

William K. Glenn - Anderson SC
Donald W. Carnes - Anderson SC
James F. Barnes - Anderson SC

Assignee:

Ryobi Motor Products Corp. - Easley SC

International Classification:

A47L 534

US Classification:

15356

Abstract:

A vacuum power head is provided which has a bare floor feature. A vacuum cleaner head assembly defines a vacuum chamber which contains a power driven rotary brush. Located outside of the vacuum chamber adjacent the rotary brush is a generally U-shaped trailing brush. The trailing brush cooperates with a height adjustment mechanism which is movable between a deep carpet position and a bare floor position. As the height adjustment mechanism of the head assembly is moved toward the bare floor position, the trailing brush is automatically moved to an extended position into engagement with the floor. When the height adjustment mechanism is moved from the bare floor position, a biasing means biases the trailing brush toward a retracted position within the head assembly. An actuator cooperates with the height adjustment mechanism to automatically move the trailing brush between the retracted position and the extended position in response to movement of the height adjustment mechanism.

US Patent:

40205258, May 3, 1977

Filed:

Aug 13, 1975

Appl. No.:

5/604277

Inventors:

Charles T. Fromknecht - Anderson SC
Donald W. Carnes - Anderson SC

Assignee:

The Singer Company - New York NY

International Classification:

A47L 900

US Classification:

15339

Abstract:

A vacuum cleaner filter bag condition indicator that detects when the bag is substantially full and should be replaced. The indicator includes a pressure responsive member having internal filter bag pressure applied to a small area of one side thereof and filter bag compartment pressure applied to the entire other side. When the bag becomes substantially full the bag pressure increases and the increased pressure differential causes the pressure responsive member to move slightly to allow the filter bag pressure to act on the entire area of the one side. The pressure responsive means thereafter quickly moves toward the lower pressure side and forces an indicator button out the cleaner.