Tent – canopy – umbrella – or cane – Umbrella – Inflatable
Patent
1996-05-15
1998-03-10
Wood, Wynn E.
Tent, canopy, umbrella, or cane
Umbrella
Inflatable
135 98, 135 151, 135 332, A45B 1902
Patent
active
057250049
ABSTRACT:
The present invention provides a canopy operator for a supported canopy structure of the type having a support structure and an openable canopy attached to the support structure. The canopy operator comprises a conduit and a plurality of support ribs extending from the conduit to support the canopy. The support ribs comprise stiffenable tubes in communication with the conduit, the conduit and stiffenable tubes comprising a conduit system. A supply of non-gaseous material is in the conduit system, and the canopy operator also includes a pump for changing the pressure in the conduit system. The pump may be used to open the canopy by creating a vacuum in one embodiment or by pumping hydraulic fluid into the system in another embodiment. Support rods may extend alongside the stiffenable tubes. The support structure may be a central pole, as in a typical umbrella, or may be a structure such as a solid wall, edge or frame.
REFERENCES:
patent: 269317 (1882-12-01), Peace
patent: 1397789 (1921-11-01), Stonestreet
patent: 1411560 (1922-04-01), Beaty
patent: 2753878 (1956-07-01), Halberstam
patent: 3361145 (1968-01-01), Jones
patent: 3954117 (1976-05-01), Wallace
patent: 4068675 (1978-01-01), Pappanikolaov
patent: 4370994 (1983-02-01), Pittman
patent: 4643210 (1987-02-01), Feld
patent: 4747422 (1988-05-01), Chung
patent: 4766920 (1988-08-01), Grady, II
patent: 4870983 (1989-10-01), Wang
patent: 5143107 (1992-09-01), Kelley
Tim Studt, Senior Editor, R & D Magazine, Apr. 1992, pp. 55, 56, 58, 60 Smart Materials: Creating Systems That React.
Olympic Medical, four page brochure, Jul. 1, 1993, Olympic VAC-PAC.
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