Patent US4939622A successfully refreshed from Google Patents.
US4939622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable electrical or electronic equipment assembly comprising a box and its housing
Assignee: Dassault Aviation SA
•
Filing: 1989-04-07
•
Granted: 1990-07-03
•
Expires: 2009-04-07
Abstract
Abstract A removable box is provided for electrical or electronic equipment. A plug connection has elements respectively provided on the box and within an associated housing. Guide pieces are located on the box and housing which engage with one another to guide a sliding motion of the box generated by rotation of an endless screw within a housing rack. Rotation of the screw is blocked when the plug elements are engaged and rotation allowed when the elements are disengaged via a locking mechanism.
Inventors
- 👤 Jean-Pierre Weiss
- 👤 Rene Estival
- 👤 Pascal Noble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:24
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1401; H05K7/1411; H05K7/1412
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
196 words
A removable electrical or electronic equipment assembly comprising: a box containing the electrical or electronic equipment; a housing for receiving said box; at least one plug connector comprising a first element provided on said box and a second element provided within said housing, the first and second elements adapted to engage with one other; an endless screw provided on said box; a rack located within said housing and adapted to rotatably receive said endless screw; first guide pieces located on said box; second guide pieces located within said housing, said second guide pieces being spaced apart from said rack and adapted to be in sliding contact with said first guide pieces; means for blocking the rotation of said endless screw when the first and second elements are engaged; and means for releasing said endless screw when the first and second elements are disengaged, whereby upon rotation of said endless screw in one direction, said box travels into said housing via said guide pieces until the first and second elements are engaged and the screw rotation is blocked by said blocking means, and whereby said box is removed upon rotation of said screw in an opposite direction.
Claim 2
Dependent Claim
196 words
A removable electrical or electronic equipment assembly comprising: a box containing the electrical or electronic equipment; a housing for receiving said box; at least one plug connector comprising a first element provided on said box and a second element provided within said housing, the first and second elements adapted to engage with one other; an endless screw provided on said box; a rack located within said housing and adapted to rotatably receive said endless screw; first guide pieces located on said box; second guide pieces located within said housing, said second guide pieces being spaced apart from said rack and adapted to be in sliding contact with said first guide pieces; means for blocking the rotation of said endless screw when the first and second elements are engaged; and means for releasing said endless screw when the first and second elements are disengaged, whereby upon rotation of said endless screw in one direction, said box travels into said housing via said guide pieces until the first and second elements are engaged and the screw rotation is blocked by said blocking means, and whereby said box is removed upon rotation of said screw in an opposite direction.
Claim 3
Dependent Claim
34 words
The assembly as claimed in claim 1, wherein the box and its housing are parallelepipedic, wherein the first guide pieces are located near edges of a face of said box which carries said screw.
Claim 4
Dependent Claim
60 words
The assembly as claimed in claim 1, further comprising guide means independent of said first and second guide pieces, these guide means being located near the endless screw and the rack and being adapted to guide said endless screw into reception by said race when said box comes into the vicinity of its position of complete engagement in the housing.
Claim 5
Dependent Claim
70 words
The assembly as claimed in claim 1, wherein the endless screw can be driven in rotation by a rod equipped with a drive head intended for interacting with a took, wherein the endless screw is in one piece with the said rod and its drive head, and wherein it is retained on a support connected to the box by means of two bearings, at least one of which is attached.
Claim 6
Dependent Claim
45 words
The assembly as claimed in claim 4, wherein said rod has grooves or serrations for interacting with at least one ball pushed by a spring, these grooves or serrations forming, with said ball and its spring, part of the means for blocking the endless screw.
Claim 7
Dependent Claim
36 words
The assembly as claimed in claim 1, wherein the endless screw can be driven in rotation by a rod equipped with a drive head intended for interacting with a corresponding non-standard tool for driving the head.
Claim 8
Dependent Claim
16 words
The assembly as claimed in claim 6, wherein said corresponding non-standard tool includes a torque limiter.
References Cited (Backward Citations)
US2789024A
Cited
US3014160A
Cited
US3289044A
Cited
FR2049249A6
Cited
EP0101204A2
Cited
US4744001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-07-02 | 1994-01-01 | 1994-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-02 | 1998-01-01 | 1998-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-02 | 2002-01-01 | 2002-07-03 | $7700.00 | Window Closed / Lapsed |