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US 4,786,031 AGranted
Fiber reinforced thermoplastic butterfly valve element
AssigneePhillips Petroleum Company
InventorJoe R. Waldrop
Life of this patent
Estimating the term…
Abstract
A disk element for a butterfly valve utilizing a flattened disk-like member which typically has diametrically opposed tubular sleeve insert members mounted therein, one of such insert members being noncylindrical. The disk element is comprised of fiber reinforced thermoplastic polymer. Preferably the polymer is poly(arylene sulfide) and the fiber reinforcement is comprised of carbon or glass.
Claims9
A valve element for controlling fluid flow in a butterfly valve comprising:
- (a) a flattened disk-like member having an outer circumference and comprised of a thermoplastic polymer matrix containing random fiber reinforcement.
- (b) said disk-like member having a channel defined therein, said channel being diametrically extending and having side walls extending radially inward from said outer circumference, said disk-like member being transversely thickened in the region of said channel, and
- (c) a tubular sleeve insert member
- (1) comprised of a thermoplastic polymer matrix containing filament wound fiber,
- (2) having circumferential walls defining outside and inside circumferential wall surfaces, and
- (3) located matingly in, and integrally associated with, said channel,
- (d) said circumferential walls being noncylindrical and said channel so associated therewith having its said side walls matingly configured thereto.
4 more elements
A disk element for controlling fluid flow in a butterfly valve comprising:
- (a) a flattened disk-like number comprised of a fiber reinforced thermoplastic polymer and having an outer circumference,
- (b) said disk-like member having a pair of diametrically opposed channels defined therein, each said channel having side walls radially inwardly extending from said outer circumference, said disk-like member being transversely thickened in the regions of said channels, and
- (c) a pair of tubular sleeve insert members, each said insert member
- (1) being comprised of poly(arylene sulfide) reinforced with fibers selected from the group consisting of carbon fibers and glass fibers,
- (2) having circumferential walls defining outside and inside circumferential wall surfaces, and
- (3) being located matingly in, and integrally associated with, a different one of said channels,
- (d) said circumferential walls of at least one of said insert members being cross-sectionally non-circular and said channel so associated therewith having its said side walls matingly configured thereto.
4 more elements
Dependencies are inferred from the claim text.