Pipe joints or couplings – Flexible joint – rigid members – Resilient sleeve type
Patent
1991-09-06
1993-03-02
Reese, Randolph A.
Pipe joints or couplings
Flexible joint, rigid members
Resilient sleeve type
285253, 285332, 285330, 285910, F16L 3320
Patent
active
051903229
ABSTRACT:
A cuff type air seal for sealing the overlap of partly telescoped parts that has an annular body of rubber or elastomer material having annular internal air sealing beads thereon which are adapted to fit on outer peripheral surfaces of the parts adjacent their overlap. Both parts have fixed outer diameters but the outer part may be a blow molded annular component having an internal diameter which varies so usually there is clearance and a potential air leak path at the overlap. An adjustable clamp encompasses the air seal and provides a constricting force so that the air sealing beads seal on the outer surfaces of the parts even though the clearance remains. The cuff is formed with a pocket that receives and retains a headed portion of the blow molded part when telescoped over the facing headed portion of the first part, particularly when the clamp is constricted.
REFERENCES:
patent: 2315897 (1943-04-01), Hansell
patent: 3558164 (1971-01-01), Havell
patent: 3572774 (1971-03-01), Sipler
patent: 3756631 (1973-09-01), Ross
patent: 4643465 (1987-02-01), Green et al.
patent: 4646167 (1989-07-01), Tibbals
patent: 5096206 (1992-03-01), Andre et al.
Chun Heather
MacLean, Jr. Kenneth H.
Reese Randolph A.
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