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US 11,835,078 B2Granted
Threaded positioning mechanism
AssigneeXR Reserve LLC
InventorGregory Prevost
Life of this patent
Estimating the term…
Abstract
A threaded installation is provided. The threaded installation includes a nut, a bolt, and a housing. The housing includes a threaded hole. A first threaded connection is formed where the bolt is threadably coupled with the nut, and a second threaded connection is formed where the bolt is threadably coupled with the threaded hole. The first threaded connection is characterized by a first flank angle, Θ2A, of threads of the bolt or threads of the nut. The second threaded connection is characterized by a second flank angle, Θ3B, of threads of the bolt or threads of the housing. The flank angles, Θ2A and Θ3B, satisfy the following equation: k 2 = cos ( θ 2 A ) cos ( θ 3 B ) > 1 . 0 0 .
Claims27
A threaded installation, the threaded installation comprising:
- a nut, a bolt, and a housing, the housing including a threaded hole;
- a first threaded connection, wherein the bolt is threadably coupled with the nut;
- and
- a second threaded connection, wherein the bolt is threadably coupled with the threaded hole;
- wherein the first threaded connection is characterized by a first flank angle, Θ2A, of threads of the bolt or threads of the nut, wherein the second threaded connection is characterized by a second flank angle, Θ3B, of threads of the bolt or threads of the housing, and wherein Θ2A and Θ3B satisfy the following equation:
- k
- 2
- =
- cos
-
- (
- θ
- 2
-
- A
- )
- cos
-
- (
- θ
- 3
-
- B
- )
- >
- 1
- .00
- wherein the bolt is threadably coupled with the nut and the housing via asymmetrical threads on the nut, asymmetrical threads on the bolt, and asymmetrical threads on the threaded hole, wherein the first threaded connection includes the asymmetrical threads of the bolt threadably coupled with the asymmetrical threads of the nut;
- and wherein the second threaded connection includes the asymmetrical threads of the bolt threadably coupled with the asymmetrical threads of the threaded hole.
26 more elements
A threaded installation, the threaded installation comprising:
- a nut, a bolt, and a housing, the housing including a threaded hole;
- a first threaded connection, wherein the bolt is threadably coupled with the nut;
- and
- a second threaded connection, wherein the bolt is threadably coupled with the threaded hole;
- wherein the first threaded connection is characterized by a first flank angle, Θ2A, of threads of the bolt or threads of the nut, wherein the second threaded connection is characterized by a second flank angle, Θ3B, of threads of the bolt or threads of the housing, and wherein Θ2A and Θ3B satisfy the following equation:
- k
- 2
- =
- cos
-
- (
- θ
- 2
-
- A
- )
- cos
-
- (
- θ
- 3
-
- B
- )
- >
- 1
- .00
- wherein the bolt is threadably coupled with the nut and the housing via asymmetrical threads, and wherein the housing comprises a locking thread form that includes threads having a wedge ramp at a root of the threads.
25 more elements
A threaded installation, the threaded installation comprising:
- a nut, a bolt, and a housing, the housing including a threaded hole;
- a first threaded connection, wherein the bolt is threadably coupled with the nut;
- and
- a second threaded connection, wherein the bolt is threadably coupled with the threaded hole;
- wherein the first threaded connection is characterized by a first flank angle, Θ2A, of threads of the bolt or threads of the nut, wherein the second threaded connection is characterized by a second flank angle, Θ3B, of threads of the bolt or threads of the housing, and wherein Θ2A and Θ3B satisfy the following equation:
- k
- 2
- =
- cos
-
- (
- θ
- 2
-
- A
- )
- cos
-
- (
- θ
- 3
-
- B
- )
- >
- 1
- .00
- wherein the first threaded connection includes a first thread form on the bolt and the nut, wherein the second threaded connection includes a second thread form on the bolt and the housing, and wherein the first thread form and the second thread form are different thread forms.
25 more elements
A threaded installation, the threaded installation comprising:
- a nut, a bolt, and a housing, the housing including a threaded hole;
- a first threaded connection, wherein the bolt is threadably coupled with the nut;
- and
- a second threaded connection, wherein the bolt is threadably coupled with the threaded hole;
- wherein the first threaded connection is characterized by a first flank angle, Θ2A, of threads of the bolt or threads of the nut, wherein the second threaded connection is characterized by a second flank angle, Θ3B, of threads of the bolt or threads of the housing, and wherein Θ2A and Θ3B satisfy the following equation:
- k
- 2
- =
- cos
-
- (
- θ
- 2
-
- A
- )
- cos
-
- (
- θ
- 3
-
- B
- )
- >
- 1.
- wherein a ratio of torsional friction of the second thread connection to torsional friction of the first threaded connection is greater than 1.
24 more elements
A threaded installation, the threaded installation comprising:
- a nut, a bolt, and a housing, the housing including a threaded hole;
- a first threaded connection, wherein the bolt is threadably coupled with the nut;
- and
- a second threaded connection, wherein the bolt is threadably coupled with the threaded hole;
- wherein the first threaded connection is characterized by a first flank angle, Θ2A, of threads of the bolt or threads of the nut, wherein the second threaded connection is characterized by a second flank angle, Θ3B, of threads of the bolt or threads of the housing, and wherein Θ2A and Θ3B satisfy the following equation:
- k
- 2
- =
- cos
-
- (
- θ
- 2
-
- A
- )
- cos
-
- (
- θ
- 3
-
- B
- )
- >
- 1.
- wherein the bolt has an engagement surface thereon or coupled therewith;
- an opposing housing having an opposing engagement surface, wherein the opposing housing is positioned relative to the bolt such that the engagement surface engages with or is spaced-apart from the opposing engagement surface.
25 more elements
A method of maintaining a position of a bolt within a threaded installation, the method comprising:
- threadably coupling a bolt with a threaded hole of a housing;
- threadably coupling a nut with the bolt, forming a threaded installation;
- wherein threaded connection between the nut and the bolt is characterized by a first flank angle, Θ2A, of threads of the bolt or threads of the nut, wherein threaded connection between the bolt and the housing is characterized by a second flank angle, Θ3B, of threads of the bolt or threads of the housing, and wherein Θ2A and Θ3B satisfy the following equation:
- k
- 2
- =
- cos
-
- (
- θ
- 2
-
- A
- )
- cos
-
- (
- θ
- 3
-
- B
- )
- >
- 1.
- wherein the bolt is threadably coupled with the nut via asymmetrical threads on the bolt and asymmetrical threads on the nut, wherein the bolt is threadably coupled with the housing via asymmetrical threads on the bolt and asymmetrical threads on the threaded hole, and wherein the threaded connections between the bolt and the nut and between the bolt and the housing have the same asymmetrical thread form.
22 more elements
A method of maintaining a position of a bolt within a threaded installation, the method comprising:
- threadably coupling a bolt with a threaded hole of a housing;
- threadably coupling a nut with the bolt, forming a threaded installation;
- wherein threaded connection between the nut and the bolt is characterized by a first flank angle, Θ2A, of threads of the bolt or threads of the nut, wherein threaded connection between the bolt and the housing is characterized by a second flank angle, Θ3B, of threads of the bolt or threads of the housing, and wherein Θ2A and Θ3B satisfy the following equation:
- k
- 2
- =
- cos
-
- (
- θ
- 2
-
- A
- )
- cos
-
- (
- θ
- 3
-
- B
- )
- >
- 1.
- wherein, during threading of the nut onto the bolt, torsional friction is less at the threaded connection between the nut and the bolt than torsional friction at the threaded connection between the bolt and the housing.
22 more elements
A method of maintaining a position of a bolt within a threaded installation, the method comprising:
- threadably coupling a bolt with a threaded hole of a housing;
- threadably coupling a nut with the bolt, forming a threaded installation;
- wherein threaded connection between the nut and the bolt is characterized by a first flank angle, Θ2A, of threads of the bolt or threads of the nut, wherein threaded connection between the bolt and the housing is characterized by a second flank angle, Θ3B, of threads of the bolt or threads of the housing, and wherein Θ2A and Θ3B satisfy the following equation:
- k
- 2
- =
- cos
-
- (
- θ
- 2
-
- A
- )
- cos
-
- (
- θ
- 3
-
- B
- )
- >
- 1.
- wherein the threaded connection between the bolt and the nut has a first thread form, wherein the threaded connection between the bolt and the housing has a second thread form, and wherein the first and second thread forms are different thread forms.
22 more elements
A method of maintaining a position of a bolt within a threaded installation, the method comprising:
- threadably coupling a bolt with a threaded hole of a housing;
- threadably coupling a nut with the bolt, forming a threaded installation;
- wherein threaded connection between the nut and the bolt is characterized by a first flank angle, Θ2A, of threads of the bolt or threads of the nut, wherein threaded connection between the bolt and the housing is characterized by a second flank angle, Θ3B, of threads of the bolt or threads of the housing, and wherein Θ2A and Θ3B satisfy the following equation:
- k
- 2
- =
- cos
-
- (
- θ
- 2
-
- A
- )
- cos
-
- (
- θ
- 3
-
- B
- )
- >
- 1.
- wherein the housing comprises a locking thread form that includes threads having a wedge ramp at a root of the threads.
22 more elements
A method of maintaining a position of a bolt within a threaded installation, the method comprising:
- threadably coupling a bolt with a threaded hole of a housing;
- threadably coupling a nut with the bolt, forming a threaded installation;
- wherein threaded connection between the nut and the bolt is characterized by a first flank angle, Θ2A, of threads of the bolt or threads of the nut, wherein threaded connection between the bolt and the housing is characterized by a second flank angle, Θ3B, of threads of the bolt or threads of the housing, and wherein Θ2A and Θ3B satisfy the following equation:
- k
- 2
- =
- cos
-
- (
- θ
- 2
-
- A
- )
- cos
-
- (
- θ
- 3
-
- B
- )
- >
- 1.
- wherein the bolt is threadably coupled with the nut and with the housing via buttress threads on the bolt, buttress threads on the nut, and buttress threads on the threaded hole of the housing.
22 more elements
A threaded installation, the threaded installation comprising:
- a nut having asymmetrical threads, a bolt have asymmetrical threads, and a housing, the housing including a threaded hole having asymmetrical threads;
- a first threaded connection, wherein the asymmetrical threads of the bolt are threadably coupled with the asymmetrical threads of the nut;
- and
- a second threaded connection, wherein the asymmetrical threads of the bolt are threadably coupled with the asymmetrical threads of the threaded hole;
- wherein the asymmetrical threads of the bolt include a first flank having a first flank angle and a second flank having a second flank angle, wherein the first flank angle is smaller than the second flank angle, and wherein the second flank carries bearing load on the bolt, and wherein the first flank carries positioning load on the bolt.
2 more elements
A threaded installation, the threaded installation comprising:
- a nut, a bolt, and a housing, the housing including a threaded hole;
- a first threaded connection, wherein the bolt is threadably coupled with the nut;
- and
- a second threaded connection, wherein the bolt is threadably coupled with the threaded hole;
- wherein the bolt has asymmetrical threading, including a first flank having a first flank angle and a second flank having a second flank angle, wherein the first flank angle is smaller than the second flank angle, and wherein the second flank carries bearing load on the bolt, and wherein the first flank carries positioning load on the bolt;
- wherein the bolt has an engagement surface thereon or coupled therewith;
- an opposing housing having an opposing engagement surface, wherein the opposing housing is positioned relative to the bolt such that the engagement surface engages with or is spaced-apart from the opposing engagement surface.
4 more elements
A method of maintaining a position of a bolt within a threaded installation, the method comprising:
- threadably coupling a bolt with a threaded hole of a housing by threadably engaging asymmetrical threads of the bolt with asymmetrical threads of the threaded hole;
- threadably coupling a nut with the bolt by threadably engaging asymmetrical threads of the bolt with asymmetrical threads of the nut, forming a threaded installation;
- wherein the asymmetrical threads of the bolt include a first flank having a first flank angle and a second flank having a second flank angle, and wherein the first flank angle is smaller than the second flank angle;
- and
- carrying bearing load on the bolt on the second flank, and carrying positioning load on the bolt on the first flank.
2 more elements
Dependencies are inferred from the claim text.