Robert J Crawford

US Patent:

7891686, Feb 22, 2011

Filed:

Aug 23, 2008

Appl. No.:

12/197245

Inventors:

Robert Crawford - Boca Raton FL, US

International Classification:

B62M 1/04

US Classification:

280233, 280254, 280282

Abstract:

A vehicle powered by an operator's arms and/or legs utilizes a pivot column for propulsion. An upper propulsion member (handlebar) is provided on the upper end of the pivot column. A lower propulsion member (foot bar) is provided on the lower end of the pivot column. A drive propulsion system is provided between the pivot column bottom and a rotational drive gear set. The drive propulsion system engaged with said at least one rotational drive gear, the propulsion system engages with and provides propulsion to an upper portion of the rotational drive gear during a counterclockwise motion of the pivot column and engages with and provides propulsion to a lower portion of the rotational drive gear during a clockwise motion of the pivot column. The rotational drive gear spins freely when subjected to the reverse motion. Incorporating two gears with opposing propulsion drives provides forward motion throughout the entire reciprocating stroke of the pivot column.

US Patent:

8328213, Dec 11, 2012

Filed:

Feb 21, 2011

Appl. No.:

13/031591

Inventors:

Robert Crawford - Boca Raton FL, US

International Classification:

B60M 1/04

US Classification:

280233, 280254, 280282

Abstract:

A vehicle powered by an operator's arms and/or legs utilizes a pivot column for propulsion. An upper propulsion member (handlebar) is provided on the upper end of the pivot column. A lower propulsion member (foot bar) is provided on the lower end of the pivot column. A drive propulsion system is provided between the pivot column bottom and a rotational drive gear set. The drive propulsion system engaged with said at least one rotational drive gear, the propulsion system engages with and provides propulsion to an upper portion of the rotational drive gear during a counterclockwise motion of the pivot column and engages with and provides propulsion to a lower portion of the rotational drive gear during a clockwise motion of the pivot column. The rotational drive gear spins freely when subjected to the reverse motion. Incorporating two gears with opposing propulsion drives provides forward motion throughout the entire reciprocating stroke of the pivot column.

US Patent:

20110182013, Jul 28, 2011

Filed:

Jan 28, 2011

Appl. No.:

13/016008

Inventors:

Sean Savitt - Hollywood FL, US
Edward Martin - Hollywood FL, US
Christopher Piedra - Hollywood FL, US
Robert Crawford - Hollywood FL, US

Assignee:

MARWARE, INC. - Hollywood FL

International Classification:

H05K 5/00

US Classification:

36167901

Abstract:

A frame case includes a device case for holding a portable electronic device having a display to be viewed by a user; and a frame associated with the device case for holding a photograph or graphics to be viewed by the user.

US Patent:

51005131, Mar 31, 1992

Filed:

Dec 17, 1990

Appl. No.:

7/629719

Inventors:

Robert R. Crawford - Middletown OH

International Classification:

D21F 102

US Classification:

162342

Abstract:

Apparatus for even distribution of, and for maintaining fibrous slurries in a deflocculated state in close proximity to the slice of a papermachine headbox, respectively. The apparatus, in the first instance, comprises one or more axial (center) flow distributor rolls feeding slurry to headboxes or other vessels. Secondly, a single or multiplicity of rectifier rolls or devices rotating inside a master, or outer, roll are housed in semi-circular, or other shaped, compartments located in the headbox front plates.