Patent US4682745A successfully refreshed from Google Patents.
US4682745A
Expired / Lapsed
US
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Preloadable vector sensitive latch
Assignee: United States, NATIONAL AERONAUTICS AND SPACE ADMININSTRATION THE, Administrator of
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Filing: 1985-10-03
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Granted: 1987-07-28
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Expires: 2005-10-03
Abstract
Abstract The invention relates to a preloadable vector-sensitive latch which automatically releases when the force vector from a latch member reaches a specified release angle. In addition, it contains means to remove clearance between the latched members and to preload the latch to prevent separation at angles less than the specified release angle. The latch comprises a triangular main link (77), a free link (74) connected between a first corner of the main link and a yoke member (72), a housing (82), and an actuator (71) connected between the yoke member and the housing. A return spring bias means (70) connects the main link to a portion of the housing. A second corner of the main link is slidably and pivotally connected to the housing via a slot (81) in a web portion of the housing. The latch housing has a rigid docking ring (79) alignable with a mating locking ring (75) which is engageable by a locking roller (78) journalled on the third corner of the triangular main link.
Inventors
- 👤 William R. Acres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:08
CPC Classifications
B; B64; B64G; B64G1/00; B64G1/22; B64G1/64; B64G1/645; B64G1/6457; Y; Y10; Y10S; Y10S292/00; Y10S292/49; Y10T; Y10T292/00; Y10T292/08; Y10T292/0886; Y10T292/0887; Y10T292/1043; Y10T292/1075; Y10T292/1082
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
64 words
A preloadable vector sensitive latch, comprising: a housing, a main link slidably and pivotally connected directly to the housing, a yoke member, a free link directly connected to both the main link and the yoke member, and actuator means connected between the yoke member and the housing for changing the yoke position and for applying a force on the yoke to preload the latch.
Claim 2
Dependent Claim
64 words
A preloadable vector sensitive latch, comprising: a housing, a main link slidably and pivotally connected directly to the housing, a yoke member, a free link directly connected to both the main link and the yoke member, and actuator means connected between the yoke member and the housing for changing the yoke position and for applying a force on the yoke to preload the latch.
Claim 3
Dependent Claim
20 words
The latch of claim 1 wherein the main link comprises a first, a second, and a third load application points.
Claim 4
Dependent Claim
22 words
The latch of claim 2 wherein the free link is directly connected to the first load application point of the main link.
Claim 5
Dependent Claim
35 words
The latch of claim 3 wherein the housing has a slot therein, and means associated with said slot for slidably and pivotally connecting the second load application point of the main link to the housing.
Claim 6
Dependent Claim
41 words
The latch of claim 3 wherein the housing includes a rigid primary member, an aligned latching member, a locking roller journalled to the third load application point of the main link, said aligned latching member being engageable by said locking roller.
Claim 7
Dependent Claim
19 words
The latch of claim 1 including bias means connecting the main link to a first portion of the housing.
Claim 8
Dependent Claim
62 words
A preloadable vector sensitive latch, comprising: a housing, a main link slidably and pivotally connected directly to the housing, a yoke member, a free link directly connected to both the main link and the yoke member, actuator means connected between the yoke member and the housing, and a return spring mechanism connecting the main link to a first portion of the housing.
Claim 9
Dependent Claim
62 words
A preloadable vector sensitive latch, comprising: a housing, a main link slidably and pivotally connected directly to the housing, a yoke member, a free link directly connected to both the main link and the yoke member, actuator means connected between the yoke member and the housing, and a return spring mechanism connecting the main link to a first portion of the housing.
Claim 10
Dependent Claim
62 words
A preloadable vector sensitive latch, comprising; a main link, a yoke member, a free link directly connected to both the main link and the yoke member, a housing, an actuator means connected between the yoke member and the housing, the housing having a slot therein, and means associated with said slot for slidably and pivotally connecting the main link to the housing.
Claim 11
Dependent Claim
62 words
A preloadable vector sensitive latch, comprising; a main link, a yoke member, a free link directly connected to both the main link and the yoke member, a housing, an actuator means connected between the yoke member and the housing, the housing having a slot therein, and means associated with said slot for slidably and pivotally connecting the main link to the housing.
Claim 12
Dependent Claim
74 words
A preloadable vector sensitive latch, comprising: a main link, a yoke member, a free link directly connected to both the main link and the yoke member, a housing, an actuator means connected to the yoke member to and the housing, a return spring mechanism connecting the main link to the housing, the housing having a slot therein, and means associated with said slot for slidably and pivotally connecting the main link to the housing.
Claim 13
Dependent Claim
74 words
A preloadable vector sensitive latch, comprising: a main link, a yoke member, a free link directly connected to both the main link and the yoke member, a housing, an actuator means connected to the yoke member to and the housing, a return spring mechanism connecting the main link to the housing, the housing having a slot therein, and means associated with said slot for slidably and pivotally connecting the main link to the housing.
Claim 14
Dependent Claim
107 words
A preloadable vector sensitive latch, comprising: a main link, a yoke member, a free link directly connected to both the main link and the yoke member, a housing, an aligned mating latching member, actuator means connected between the yoke member and the housing, a return spring mechanism connecting the main link to a first portion of the housing, the housing having a slot therein, means associated with said slot for slidably and pivotally connecting the main link to the housing, the housing including a rigid primary member, and a locking roller journalled to the main link, said locking roller being engageable with said aligned mating latching member.
Claim 15
Dependent Claim
107 words
A preloadable vector sensitive latch, comprising: a main link, a yoke member, a free link directly connected to both the main link and the yoke member, a housing, an aligned mating latching member, actuator means connected between the yoke member and the housing, a return spring mechanism connecting the main link to a first portion of the housing, the housing having a slot therein, means associated with said slot for slidably and pivotally connecting the main link to the housing, the housing including a rigid primary member, and a locking roller journalled to the main link, said locking roller being engageable with said aligned mating latching member.
Claim 16
Dependent Claim
144 words
A preloadable vector sensitive latch, comprising: a main link, a yoke member, a free link connected directly to both the main link and the yoke member, a housing, an aligned latching member, actuator means connected between the yoke member and the housing, the main link having a first, a second, and a third load application points, the free link being connected to the first load application point of the main link, bias means connecting the main link to a first portion of the housing, the housing having a slot therein, means associated with said slot for slidably and pivotally connecting a second load application point of the main link to the housing, the housing including a rigid primary member, and a locking roller journalled to a third load application point of the main link, said aligned latching member being engageable by said locking roller.
Claim 17
Dependent Claim
144 words
A preloadable vector sensitive latch, comprising: a main link, a yoke member, a free link connected directly to both the main link and the yoke member, a housing, an aligned latching member, actuator means connected between the yoke member and the housing, the main link having a first, a second, and a third load application points, the free link being connected to the first load application point of the main link, bias means connecting the main link to a first portion of the housing, the housing having a slot therein, means associated with said slot for slidably and pivotally connecting a second load application point of the main link to the housing, the housing including a rigid primary member, and a locking roller journalled to a third load application point of the main link, said aligned latching member being engageable by said locking roller.
Claim 18
Dependent Claim
95 words
A latching system, comprising: a housing having a primary member attached thereto, an actuator means connected at one end to said housing, a free link, yoke means directly connected to both the actuator means and the free link, a main link directly interconnected with the free link, bias means extending between the main link and the housing, roller means on said main link, a slot in said housing, and a slider pin associated with the main link and extending into said slot for slidably and pivotally connecting the main link with respect to the housing.
Claim 19
Dependent Claim
95 words
A latching system, comprising: a housing having a primary member attached thereto, an actuator means connected at one end to said housing, a free link, yoke means directly connected to both the actuator means and the free link, a main link directly interconnected with the free link, bias means extending between the main link and the housing, roller means on said main link, a slot in said housing, and a slider pin associated with the main link and extending into said slot for slidably and pivotally connecting the main link with respect to the housing.
Claim 20
Dependent Claim
105 words
The combination of a free floating alignable mating latching member and a latching system comprising a housing having a primary member attached thereto, an actuator means connected at one end to said housing, a free link, yoke means directly connected to both the actuator and the free link, a main link directly interconnected with the free link, bias means extending between the main link and the housing, roller means on said main link, a slot in said housing, and a slider pin associated with the main link and extending into said slot for slidably and pivotally connecting the main link with respect to the housing.
Claim 21
Dependent Claim
105 words
The combination of a free floating alignable mating latching member and a latching system comprising a housing having a primary member attached thereto, an actuator means connected at one end to said housing, a free link, yoke means directly connected to both the actuator and the free link, a main link directly interconnected with the free link, bias means extending between the main link and the housing, roller means on said main link, a slot in said housing, and a slider pin associated with the main link and extending into said slot for slidably and pivotally connecting the main link with respect to the housing.
Claim 22
Dependent Claim
112 words
A preloadable vector sensitive latch, comprising: latching members, said latching members further comprising a latched member, a mating primary member having a housing, a main link slidably and pivotally connected to the housing, a yoke member, a free link directly connected to both the main link and the yoke, and means for removing clearance between the latching members and for preloading the latching members to prevent their separation when their alignment is within a preselected angular limit and for automatically releasing them when their alignment is outside said angular limit, said means including actuator means connected to both the yoke member and to the housing for preloading and releasing the latched member.
Claim 23
Dependent Claim
112 words
A preloadable vector sensitive latch, comprising: latching members, said latching members further comprising a latched member, a mating primary member having a housing, a main link slidably and pivotally connected to the housing, a yoke member, a free link directly connected to both the main link and the yoke, and means for removing clearance between the latching members and for preloading the latching members to prevent their separation when their alignment is within a preselected angular limit and for automatically releasing them when their alignment is outside said angular limit, said means including actuator means connected to both the yoke member and to the housing for preloading and releasing the latched member.
References Cited (Backward Citations)
US2186795A
Cited
US2316401A
Cited
US2325225A
Cited
US3207273A
Cited
US3201065A
Cited
US3193213A
Cited
US3391881A
Cited
US3443773A
Cited
US3608848A
Cited
US3564564A
Cited
US3722936A
Cited
US3737117A
Cited
US3820741A
Cited
US4056276A
Cited
US4268076A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-07-27 | 1991-01-26 | 1991-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-27 | 1995-01-26 | 1995-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-27 | 1999-01-26 | 1999-07-28 | $7700.00 | Window Closed / Lapsed |