Fluid coupling and assembly
AssigneeThe Gates Corporation
InventorsDonald R. Gilbreath, Melvin O. Hendricks
Life of this patent
Estimating the term…
Abstract
A coupling comprising a swivel stake nut or other connecting end portion rotatably coupled to a stem portion, and a jam nut or other stabilizing apparatus mounted upon or otherwise attached to one of said connecting end portion and stem portion in stabilizing relation to the other thereof, for inhibiting axial, rocking and/or rotational movement of the components during pressurized operation of the device with impulse cycling when coupled to hose or other fluid transfer component and an associated equipment port, in the absence of a separate adapter.
Claims17
A swivel coupling stem portion assembly adaptable to engage a connecting end member to form a coupling for the conveyance of pressurized medium between an equipment port and a second component, the stem portion assembly comprising:
- a. a stem portion having an outer surface and an inner surface;
- b. a first end for engaging said connecting end member;
- c. a second end defining a second coupling connection end;
- and
- d. a bore being defined by at least a portion of said inner surface;
- e. and characterized in that said assembly further comprises a stabilizing apparatus for maintaining said stem portion in stabilizing relation to said connecting end member, said stabilizing apparatus being formed to reside in a position upon said coupling under pressurized operation thereof whereby independent rotation of one of said stem portion and said connecting end portion in relation to the other of said stem portion and said connecting end portion under pressurized operation conditions is substantially restricted.
A swivel coupling for the conveyance of pressurized medium between an equipment port and a second component, comprising;
- a. a connecting end portion having a first end defining an equipment connection end adaptable to engage said port, and a second end;
- b. a stem portion having a first end for coupling engagement to said connecting end portion, and a second end defining a second coupling connection end;
- c. said connecting end portion and said stem portion each possessing an outer surface and an inner surface, at least a portion of said inner surfaces forming a bore for conveyance of said medium;
- and characterized in that said coupling further comprises a stabilizing apparatus for maintaining said stem portion in stabilizing relation to the connecting end portion and being formed to reside in a position upon said coupling under pressurized operation thereof whereby independent rotation of one of said stem portion and said connecting end portion in relation to the other of said stem portion and said connecting end portion under pressurized operation conditions is substantially restricted, said stabilizing apparatus being attached to said device at a point other than at said connecting end portion's equipment connection end.
A hydraulic coupling for the conveyance of pressurized medium between an equipment port and a hydraulic hose, comprising;
- a. a swivel nut having an outer surface and an inner surface, a threaded first end for connection to said port, and a second end;
- b. a stem portion having an outer surface and an inner surface, a first end for rotatable engagement with said second end of said swivel nut, a second end defining a hose connection end, and a central region situated between said first end and said hose connection end;
- said outer surface at said hose connection end possessing connection means for connection to said hydraulic hose;
- c. a flexible o-ring forming an elastomeric seal between said stem portion and said swivel nut;
- d. a back-up ring formed of a fluorinated polymer adjacent said o-ring;
- e. at least a portion of said inner surfaces of said stem portion and said swivel nut forming a bore for conveyance of said medium;
- f. the improvement comprising;
- a jam nut threaded onto the central region of said stem portion, said jam nut possessing a leading end and a trailing end, said leading end possessing an annular leading face, said leading face being in substantially abutting relation to at least a portion of an opposing face on said second end of said swivel nut, said jam nut being formed to reside in a position upon said coupling under pressurized operation thereof whereby independent rotation of one of said stem portion and said swivel nut in relation to the other of said stem portion and said swivel nut under pressurized operation conditions is substantially restricted.
Dependencies are inferred from the claim text.