David Jennings Crawford
Veterinary at Elder Ave, Boulder, CO
License number
Colorado 3287
Issued Date
Jan 18, 1979
Renew Date
Oct 31, 1996
Expiration Date
Oct 31, 1996
Type
Veterinarian
Address
Address
1412 Elder Ave, Boulder, CO 80304
Professional information
Hanging Chair
US Patent:
6364412, Apr 2, 2002
Filed:
Feb 28, 2000
Appl. No.:
09/514817
Inventors:
David H. Crawford - Boulder CO 80301
International Classification:
A63G 912
US Classification:
297273, 297232, 297233, 297248, 297277, 297297, 5120, 5123
Abstract:
Disclosed is a hanging chair that is capable of accommodating more than one individual. Also provided is a hanging chair that includes a suspension structure that distributes the increased load that is associated with having more than one person in the chair over a length of the overhead support. By distributing the load, the possibility of the overhead support or the suspension structure failing is, inmost situations, reduced. The present invention further provides a hanging chair that is capable of rotating about a vertical axis without causing binding or twisting of the suspension structure.
Hanging Chair
US Patent:
5851053, Dec 22, 1998
Filed:
Sep 19, 1997
Appl. No.:
8/933805
Inventors:
David H. Crawford - Boulder CO
International Classification:
A47D 1310
US Classification:
297273
Abstract:
The present device is directed to a hanging chair that includes a chair and a suspension structure for connecting the chair to an overhead support. The suspension structure includes a longitudinally extending support member that is operatively attached to the chair and located substantially parallel to the longitudinal axis of the chair. Also included in the suspension structure is a device that permits the user to adjust the angle of chair relative to the ground.
Glove For Rock Climbing
US Patent:
5079776, Jan 14, 1992
Filed:
Dec 7, 1989
Appl. No.:
7/447034
Inventors:
David H. Crawford - Boulder CO
International Classification:
A41D 1310
US Classification:
2 20
Abstract:
The present invention provides a glove for use in rock climbing. The glove includes a pad that, in the preferred embodiment, is made from a climbing rubber and adapted to cover the back and lower peripheral palm portioins of the climber's hand.