Pipe joints or couplings – Flexible joint – rigid members – Resilient sleeve type
Patent
1989-11-06
1991-02-12
Reese, Randolph A.
Pipe joints or couplings
Flexible joint, rigid members
Resilient sleeve type
285 13, F16L 2100
Patent
active
049918796
ABSTRACT:
This invention relates to flexible coupling devices and to a method of utilizing such a device. The invention encompasses an article of manufacture which is an inflatable member characterized by a gas permeability factor sufficient to accommodate the flow of gas through the member while the member remains inflated. This article can be used as a flexible coupling to retard the accumulation of solid particulate matter in the space between two spaced apart structures and also may be used to control heat buildup between two structures. The inventive method contemplates reducing dust accumulation between two structures by providing an inflatable gas permeable member which is inflated and then allowed to lose gas through at least one wall while additional gas is continually supplied so as to maintain inflation. The same method steps may be followed to provide a method of protecting against heat buildup and a slightly modified method, of where the inflatable member is periodically allowed to partially deflate may be employed to provide protection against reversals in pressure encountered in some situations.
REFERENCES:
patent: 4694521 (1987-09-01), Tominaga
patent: 4907308 (1990-03-01), Leininger et al.
Chun Heather
Reese Randolph A.
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