Threaded coupling with flow shutoff
First Claim
1. A coupling comprising:
- a female coupling half (600) and a male coupling half (650), said female coupling half and said male coupling half being alternately coupled and uncoupled;
said male coupling half comprises;
a male body (610);
a male body extension (610A);
said male body extension includes an exterior;
said exterior of said male body of said male half includes a recess (614) therein which extends circumferentially around said exterior thereof;
said female coupling half comprises;
a valve (621);
a female body (620);
a female body extension (620A) affixed to said female body of said female coupling half;
a sliding sleeve (608) movable with respect to said female body, said female body extension and said valve;
an insert (631), said insert affixed to said sliding sleeve;
a seal (622), said seal restrained by said insert against said sliding sleeve and said valve;
said sliding sleeve movable between;
a first position abutting said valve and closing said valve, and, a second position not abutting said valve thus opening said valve;
said sliding sleeve of said female coupling half includes a first set of detents (607) carried therewith;
said female body extension of said female coupling half includes a second set of detents (630) therein;
said sliding sleeve of said female coupling half includes an exterior (608A) having a circumferentially extending recess (608C) therein; and
, wherein said second set of detents interengages (630) said recess (608C) in said exterior of said sliding sleeve during coupling of said coupling halves;
said male body (610) of said male coupling half interengaging said sliding sleeve (608) of said female coupling half during engagement therewith moving said sliding sleeve from said first closed position to said second open position; and
,said first set of detents (607) of said sliding sleeve (608) of said female coupling interengaging said circumferentially extending recess (614) in said exterior of said male body extension (610A) during coupling of said coupling halves.
2 Assignments
0 Petitions
Accused Products
Abstract
A thread to connect coupling comprising a female coupling half and a male coupling half is disclosed and claimed wherein the male coupling half includes a recess in the exterior of the male body which extends circumferentially therearound. The female coupling half includes a valve, a female body, and a female body extension affixed to the female body. The female body further includes a sliding sleeve movable with respect to the valve between a first position abutting and closing the valve and a second position opening the valve. The male body interengages the sliding sleeve and moves therewith during coupling and uncoupling. During uncoupling, the sliding sleeve is reliably positioned sealingly against the valve because the sliding sleeve is interlocked with the male body such that as the male body is withdrawn from the female body the sliding sleeve comes with the male body. Separation of the coupling halves requires that an outer sleeve release a second set of detents which acts as a permissive to uncoupling. The coupling halves may not be separated by vibrating the threaded surfaces of the respective coupling halves apart.
364 Citations
12 Claims
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1. A coupling comprising:
- a female coupling half (600) and a male coupling half (650), said female coupling half and said male coupling half being alternately coupled and uncoupled;
said male coupling half comprises;
a male body (610);
a male body extension (610A);
said male body extension includes an exterior;
said exterior of said male body of said male half includes a recess (614) therein which extends circumferentially around said exterior thereof;said female coupling half comprises;
a valve (621);
a female body (620);
a female body extension (620A) affixed to said female body of said female coupling half;
a sliding sleeve (608) movable with respect to said female body, said female body extension and said valve;
an insert (631), said insert affixed to said sliding sleeve;
a seal (622), said seal restrained by said insert against said sliding sleeve and said valve;
said sliding sleeve movable between;
a first position abutting said valve and closing said valve, and, a second position not abutting said valve thus opening said valve;
said sliding sleeve of said female coupling half includes a first set of detents (607) carried therewith;
said female body extension of said female coupling half includes a second set of detents (630) therein;
said sliding sleeve of said female coupling half includes an exterior (608A) having a circumferentially extending recess (608C) therein; and
, wherein said second set of detents interengages (630) said recess (608C) in said exterior of said sliding sleeve during coupling of said coupling halves;said male body (610) of said male coupling half interengaging said sliding sleeve (608) of said female coupling half during engagement therewith moving said sliding sleeve from said first closed position to said second open position; and
,said first set of detents (607) of said sliding sleeve (608) of said female coupling interengaging said circumferentially extending recess (614) in said exterior of said male body extension (610A) during coupling of said coupling halves. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- a female coupling half (600) and a male coupling half (650), said female coupling half and said male coupling half being alternately coupled and uncoupled;
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10. A coupling half (600) for coupling and uncoupling with another coupling half (650), comprising:
- a valve (621);
a body (620) and a body extension (620A) affixed to said body;
said valve affixed to said body;
a sliding sleeve (608) and a locking ring (605);
said locking ring movable with respect to said body extension between first and second positions;
said body and said body extension are substantially concentric and said sliding sleeve resides substantially radially intermediate said body and said body extension;
a snap ring (633) affixed to said body extension;
said sliding sleeve (608) movable between first and second positions with respect to said body, said body extension (620A) and said valve (621) thus closing said valve when said sliding sleeve is in said first position and opening said valve when said sliding sleeve is in said second position;
a closing mechanism;
said closing mechanism includes first (607) and second (630) sets of locking detents;
said first set of locking detents (607) interengaging said another coupling half (650) when said sliding sleeve is in said second position;
said second set of locking detents (630) interengaging said sliding sleeve (608) when said sliding sleeve is in said second position;
said closing mechanism includes a first spring (608E) operable between said body and said sliding sleeve;
a second spring (605D) operable between said snap ring (633) and said locking ring (605), said second spring (605D) being compressed when said coupling is uncoupled and said locking ring (605) is in said second position and said second spring being extended when said coupling is coupled and said locking ring (605) is in said first position; and
, said closing mechanism insures that said sliding sleeve (608) is returned to said closed, first, position closing said valve when said coupling half is uncoupled. - View Dependent Claims (11, 12)
- a valve (621);
Specification