US3922009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling
Assignee: BJ Services Co USA
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Filing: 1974-07-05
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Granted: 1975-11-25
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Expires: 1994-07-05
Abstract
Abstract A coupling or connector comprises a mating male member and a female member each being provided with circumferentially and laterally spaced, interrupted threads, cams or lugs having no lead angle. The male member is fully seated in the female member with the threads, cams or lugs so positioned that upon rotation of one member relative to the other for a few degrees in one direction, the threads, cams or lugs interlock or mesh with one another. When positioned for rotation, stop lugs, threads or cams are substantially circumferentially aligned, so as to not only limit the relative rotation between the members but also the direction in which the members can be rotated relative to one another. To disconnect the members, the rotation is reversed. The connector is especially adaptable for use with a cementing head through which cement is supplied to a casing of an oil well. The intermeshing of the threads provides tension and compression bearing surfaces. A locking means is associated with the head for locking the head against rotation when attached to the casing. Cooperating stop lugs on each of the members are threadedly engaged with the threads on the other of said members when the members are releasably coupled together to thereby augment the interengaged surface area of the members and thus the strength of the joint.
Inventors
- 👤 Ben F Giebeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:56
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B33/05; E21B17/00; E21B17/02; E21B17/08; F; F16; F16L; F16L37/00; F16L37/24; F16L37/244; F16L37/2445
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
188 words
In a joint, the combination comprising: a male cylindrical member; a female cylindrical member; said male member being insertable into the female member a predetermined distance; a plurality of axially spaced and circumferentially interrupted threads on each member which mesh with one another upon rotation of one of said members to releasably couple said members together; and circumferentially spaced stop lugs on each of said members which are circumferentially aligned with one another when said male member is at said predetermined distance in said female member to limit the rotation of said members relative to one another to a portion of a revolution equal in distance to the length of one of said threads, and to permit rotation of said meMbers relative to the other in one direction only for coupling said members and in the opposite direction only for uncoupling said members; and wherein stop lugs on each of said members are threadedly engaged with the threads on the other of said members when said members are releasably coupled together to thereby augment the interengaged surface area of said members and thus the strength of the joint.
Claim 2
Dependent Claim
188 words
In a joint, the combination comprising: a male cylindrical member; a female cylindrical member; said male member being insertable into the female member a predetermined distance; a plurality of axially spaced and circumferentially interrupted threads on each member which mesh with one another upon rotation of one of said members to releasably couple said members together; and circumferentially spaced stop lugs on each of said members which are circumferentially aligned with one another when said male member is at said predetermined distance in said female member to limit the rotation of said members relative to one another to a portion of a revolution equal in distance to the length of one of said threads, and to permit rotation of said meMbers relative to the other in one direction only for coupling said members and in the opposite direction only for uncoupling said members; and wherein stop lugs on each of said members are threadedly engaged with the threads on the other of said members when said members are releasably coupled together to thereby augment the interengaged surface area of said members and thus the strength of the joint.
Claim 3
Dependent Claim
21 words
In a joint as defined in claim 1 wherein said threads are generally rectangular in section and have no lead angle.
Claim 4
Dependent Claim
26 words
In a joint as defined in claim 1 wherein each said stop lugs have a complementary surface which engage one another when said members are coupled.
Claim 5
Dependent Claim
23 words
In a joint as defined in claim 1 wherein the length of said stop lugs is smaller than the length of said threads.
Claim 6
Dependent Claim
32 words
In a joint as defined in claim 1, further comprising latching means cooperating with said male and female members for latching said members against rotation for uncoupling when said members are coupled.
Claim 7
Dependent Claim
43 words
In a joint as defined in claim 5 wherein said latching means comprises a pivotable member connected to said female member and having a projecting portion, and a slot means in said male member to receive said projecting portion of said pivotable member.
Claim 8
Dependent Claim
222 words
A joint for connecting a cementing head to a casing comprising: a female section connected to said cementing head and a male section connected to said casing; a plurality of axially spaced and circumferentially interrupted threads without a lead angle on each section so arranged to mesh with one another upon insertion of said male section into said female section to a predetermined distance and rotation of said cementing head relative to said casing when so positioned to releasably connect said head to said casing; and circumferentially spaced stop lugs on each section which are circumferentially aligned with one another when said male section is inserted to said predetermined distance in said female section, said stop lugs limiting the rotation of said cementing head in one direction only for connecting said head and casing and in the opposite direction only for disconnecting said head and casing, said stop lugs being of lesser length than said threads and each having surfaces which limit the amount and direction of rotation of the cementing head relative to the casing; and wherein said stop lugs on each of said members are threadedly engaged with the threads on the other of said members when said members are releasably coupled together to thereby augment the interengaged surface area of said members and thus the strength of the joint.
Claim 9
Dependent Claim
222 words
A joint for connecting a cementing head to a casing comprising: a female section connected to said cementing head and a male section connected to said casing; a plurality of axially spaced and circumferentially interrupted threads without a lead angle on each section so arranged to mesh with one another upon insertion of said male section into said female section to a predetermined distance and rotation of said cementing head relative to said casing when so positioned to releasably connect said head to said casing; and circumferentially spaced stop lugs on each section which are circumferentially aligned with one another when said male section is inserted to said predetermined distance in said female section, said stop lugs limiting the rotation of said cementing head in one direction only for connecting said head and casing and in the opposite direction only for disconnecting said head and casing, said stop lugs being of lesser length than said threads and each having surfaces which limit the amount and direction of rotation of the cementing head relative to the casing; and wherein said stop lugs on each of said members are threadedly engaged with the threads on the other of said members when said members are releasably coupled together to thereby augment the interengaged surface area of said members and thus the strength of the joint.
Claim 10
Dependent Claim
228 words
In a joint, the combination comprising: a male cylindrical member; a female cylindrical member; said male member being insertable into the female member a predetermined distance; a plurality of series of axially spaced and aligned and circumferentially interrupted threads on each member which mesh with one another upon rotation of one of said members to releasably couple said members together; and circumferentially spaced stop lugs on each of said members which are circumferentially aligned with one another when said male member is at said predetermined distance in said female member to limit the rotation of said members relative to one another to a portion of a revolution equal in a distance to the length of one of said threads, and to permit rotation of said members relative to the other in one direction only for coupling said members and in the opposite direction only for uncoupling said members, one end of each of said stop lugs being axially aligned with one end of the threads in a series and each said stop lug is about one half the length of each thread; and wherein said stop lugs on each of said members are threadedly engaged with the threads on the other of said members when said members are releasably coupled together to thereby augment the interengaged surface area of said members and thus the strength of the joint.
Claim 11
Dependent Claim
228 words
In a joint, the combination comprising: a male cylindrical member; a female cylindrical member; said male member being insertable into the female member a predetermined distance; a plurality of series of axially spaced and aligned and circumferentially interrupted threads on each member which mesh with one another upon rotation of one of said members to releasably couple said members together; and circumferentially spaced stop lugs on each of said members which are circumferentially aligned with one another when said male member is at said predetermined distance in said female member to limit the rotation of said members relative to one another to a portion of a revolution equal in a distance to the length of one of said threads, and to permit rotation of said members relative to the other in one direction only for coupling said members and in the opposite direction only for uncoupling said members, one end of each of said stop lugs being axially aligned with one end of the threads in a series and each said stop lug is about one half the length of each thread; and wherein said stop lugs on each of said members are threadedly engaged with the threads on the other of said members when said members are releasably coupled together to thereby augment the interengaged surface area of said members and thus the strength of the joint.
Claim 12
Dependent Claim
21 words
In a joInt as defined in claim 8 wherein said threads are generally rectangular in section and have no lead angle.
Claim 13
Dependent Claim
26 words
In a joint as defined in claim 8 wherein each said stop lugs have a complementary surface which engage one another when said members are coupled.
Claim 14
Dependent Claim
233 words
A joint for connecting a cementing head to a casing comprising: a female section connected to said cementing head and a male section connected to said casing; a plurality of series of axially spaced and aligned and circumferentially interrupted threads without a lead angle on each section so arranged to mesh with one another upon insertion of said male section into said female section to a predetermined distance and rotation of said cementing head relative to said casing when so positioned to releasably connect said head to said casing; and circumferentially spaced stop lugs having no lead angle on each section which are circumferentially aligned with one another when said male section is inserted to said predetermined distance in said female section, said stop lugs limiting the rotation of said cementing head in one direction only for connecting said head and casing and in the opposite direction only for disconnecting said head and casing, said stop lugs being of approximately one half the length of said threads and each having surfaces which limit the amount and direction of rotation of the cementing head relative to the casing; and wherein said stop lugs on each of said members are threadedly engaged with the threads on the other of said members when said members are releasably coupled together to thereby augment the interengaged surface area of said members and thus the strength of the joint.
Claim 15
Dependent Claim
233 words
A joint for connecting a cementing head to a casing comprising: a female section connected to said cementing head and a male section connected to said casing; a plurality of series of axially spaced and aligned and circumferentially interrupted threads without a lead angle on each section so arranged to mesh with one another upon insertion of said male section into said female section to a predetermined distance and rotation of said cementing head relative to said casing when so positioned to releasably connect said head to said casing; and circumferentially spaced stop lugs having no lead angle on each section which are circumferentially aligned with one another when said male section is inserted to said predetermined distance in said female section, said stop lugs limiting the rotation of said cementing head in one direction only for connecting said head and casing and in the opposite direction only for disconnecting said head and casing, said stop lugs being of approximately one half the length of said threads and each having surfaces which limit the amount and direction of rotation of the cementing head relative to the casing; and wherein said stop lugs on each of said members are threadedly engaged with the threads on the other of said members when said members are releasably coupled together to thereby augment the interengaged surface area of said members and thus the strength of the joint.
Claim 16
Dependent Claim
19 words
A joint as recited in claim 11 in which said threads and stop lugs are generally rectangular in section.
Claim 17
Dependent Claim
68 words
A joint as recited in claim 12 further including latching means associated with said male and female sections and comprising a pivotable member attached to said female section and having a projection thereon, a slot means in said male member, said projection being received in said slot means when said members are coupled together and preventing rotation of said members relative to one another for uncoupling said members.
Claim 18
Dependent Claim
21 words
A joint as recited in claim 13 further including releasable locking means for releasably locking said latch means in latching position.
References Cited (Backward Citations)
US1372238A
Cited
US1685619A
Cited
US2111859A
Cited
US2228243A
Cited
US2695797A
Cited
US2673751A
Cited
US3098667A
Cited
US3442536A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |