Patent US3847344A successfully refreshed from Google Patents.
US3847344A
Expired / Lapsed
US
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Track fastener
Assignee: McDonnell Douglas Corp
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Filing: 1971-04-19
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Granted: 1974-11-12
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Expires: 1991-04-19
Abstract
Abstract A fastener which can compensate for misalignment and tolerance build-up while assuring no looseness or rattle of the connection, for connecting structure, such as seats, partitions and cabinets to a track installed in an aircraft. The fastener includes a rotatable stud for locking the fastener down to the track, serrated engagement means for allowing substantial adjustment between the track and the connected structure, means to eliminate looseness between the track and the structure and means to maintain and indicate a locked condition of the fastener.
Inventors
- 👤 S Kulczycki
- 👤 E Betts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:39
CPC Classifications
B; B64; B64D; B64D11/00; B64D11/06; B64D11/0696; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/51; Y10S24/53; Y10S24/54; Y10S24/56; Y10T; Y10T403/00; Y10T403/70; Y10T403/7005
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
322 words
A fastener for use with a track in a supporting structure to secure removable structure to the supporting structure, said fastener comprising: a base including abutment means adapted to engage the track to restrain said fastener from movement in a planar direction, and connection means adapted to connect the removable structure to said fastener; a stud assembly including a rotatable shaft which extends through said base, said shaft including a lower T-shaped integral end portion adapted to predeterminately engage with the track to fix said fastener from movement at a right angle to said planar direction when said rotatable shaft is rotated a predetermined angle in a predetermined direction, a threaded portion adapted to draw said T-shaped end portion into tight engagement with the track and means to indicate said T-shaped end portion is predeterminately engaged with the track, said connector means including a connectoR member, said connector being adapted for fastening to the removable structure and having a first serrated connector portion oriented in a first direction and a second serrated connector portion oriented in a second direction, said connector defining an opening between said first and second serrated connector portions through which said T-shaped end portion and said base abutment means extend, a first serrated portion of said base oriented in said first direction, and a second serrated portion of said base oriented in said second direction whereby said first and second serrated portions mate with said first and second serrated connector portions of said connector member to retain and enable adjustment of the removable structure in said planar direction with respect to the supporting structure; and means threadably engaging said threaded shaft portion and bearing against said base so that when said threadably engaging means are twisted in the predetermined direction and the predetermined angle to engage said T-shaped end portion with the track, said threaded shaft portion draws said T-shaped end portion into tight engagement with the track.
Claim 2
Dependent Claim
322 words
A fastener for use with a track in a supporting structure to secure removable structure to the supporting structure, said fastener comprising: a base including abutment means adapted to engage the track to restrain said fastener from movement in a planar direction, and connection means adapted to connect the removable structure to said fastener; a stud assembly including a rotatable shaft which extends through said base, said shaft including a lower T-shaped integral end portion adapted to predeterminately engage with the track to fix said fastener from movement at a right angle to said planar direction when said rotatable shaft is rotated a predetermined angle in a predetermined direction, a threaded portion adapted to draw said T-shaped end portion into tight engagement with the track and means to indicate said T-shaped end portion is predeterminately engaged with the track, said connector means including a connectoR member, said connector being adapted for fastening to the removable structure and having a first serrated connector portion oriented in a first direction and a second serrated connector portion oriented in a second direction, said connector defining an opening between said first and second serrated connector portions through which said T-shaped end portion and said base abutment means extend, a first serrated portion of said base oriented in said first direction, and a second serrated portion of said base oriented in said second direction whereby said first and second serrated portions mate with said first and second serrated connector portions of said connector member to retain and enable adjustment of the removable structure in said planar direction with respect to the supporting structure; and means threadably engaging said threaded shaft portion and bearing against said base so that when said threadably engaging means are twisted in the predetermined direction and the predetermined angle to engage said T-shaped end portion with the track, said threaded shaft portion draws said T-shaped end portion into tight engagement with the track.
Claim 3
Dependent Claim
61 words
The fastener defined in claim 1 wherein said threadably engaging means include: frictional means which frictionally engage said threaded shaft portion so said shaft and said T-shaped end portion thereof tend to rotate with said threadably engaging means, said T-shaped end portion being rotatable in a predetermined arc, and engaging the track when rotated said predetermined arc in said predetermined direction.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |