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US006200403B1
(12) United States Patent ao) Patent No.: us 6,200,403 Bi
Thomas et al. (45) Date of Patent: Mar. 13,2001
(54) METHOD OF FORMING AND SEALING AN
AIR STRUCTURE HAVING A PLURALITY
OF AIR GLANDS AND A PLURALITY OF AIR
DUCTS
(75) Inventors: Paul B. Thomas, San Pedro; Robert D.
Leventhal, Los Angeles, both ol CA
(US)
(73) Assignee: D2RM Corp., Los Angeles, CA (US)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.
(21) Appl. No.: 09/353,842
(22) Filed: Jul. 15, 1999
Related U.S. Application Data
(63) Continuation-in-part of application No. 09/311,088, filed on May 13,1999, which is a continuation-in-part of application No. 08/948,763, filed on Oct. 10, 1997, now Pat. No. 5,907,878.
(51) Int. CI. B29C 65/04
(52) U.S. CI 156/242; 156/272.2; 156/285;
156/292
(58) Field of Search 156/242, 272.2,
156/285, 286, 292, 308.2, 309.9, 311, 379.6,
379.8, 379.9, 498, 499
(56) References Cited
U.S. PATENT DOCUMENTS
3,879,776 4/1975 Solen 5/350
