US3589304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low profile vehicle hold-down
Assignee: Darby Corp
•
Filing: 1969-08-04
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Granted: 1971-06-29
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Expires: 1989-08-04
Abstract
Abstract A holddown unit for anchoring cargo such as automobiles and similar vehicles to the deck of a railway car or other transporting equipment is adapted to slide between a pair of opposed side rails secured to the deck and has a winch which includes a rotatable drum to take up a lashing chain. The unit is provided with a two-way, reciprocable locking bolt that is insertable within any one of a series of holes along one of the rails for locating the unit in one position, or within any one of a series of holes along the other rail for locating the unit in another position. A single, specially configured latch spring is capable of holding the bolt in its locked condition at either end of its path of travel.
Inventors
- 👤 James D Haynes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:54
CPC Classifications
B; B61; B61D; B61D45/00; B61D45/001; B60; B60P; B60P3/00; B60P3/06; B60P3/07; B60P3/073
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
171 words
In combination with an elongated tiedown track having a pair of spaced, upright rails each provided with a horizontal series of openings spaced longitudinally therealong, a low profile cargo holddown on it comprising: a support; apparatus on the support for taking up tie means secured to the cargo; means releasably interconnecting said support and the apparatus for holding the latter against retrograde operation; a horizontally reciprocable locking bolt carried by said support for insertion into a selected opening in one of said rails when the bolt is shifted in one direction, or into a selected opening in the other of said rails when the bolt is shifted in the opposite direction; a lateral actuating lever secured to said bolt; and a resilient, releasable latch plate on said support having a first lever-engaging abutment for holding the bolt in a locked condition at one end of its path of travel and a second leverengaging abutment for holding the bolt in a locked condition at the opposite end of its path of travel.
Claim 2
Dependent Claim
171 words
In combination with an elongated tiedown track having a pair of spaced, upright rails each provided with a horizontal series of openings spaced longitudinally therealong, a low profile cargo holddown on it comprising: a support; apparatus on the support for taking up tie means secured to the cargo; means releasably interconnecting said support and the apparatus for holding the latter against retrograde operation; a horizontally reciprocable locking bolt carried by said support for insertion into a selected opening in one of said rails when the bolt is shifted in one direction, or into a selected opening in the other of said rails when the bolt is shifted in the opposite direction; a lateral actuating lever secured to said bolt; and a resilient, releasable latch plate on said support having a first lever-engaging abutment for holding the bolt in a locked condition at one end of its path of travel and a second leverengaging abutment for holding the bolt in a locked condition at the opposite end of its path of travel.
Claim 3
Dependent Claim
26 words
The invention of claim 1, said latch plate extending along said bolt in radially spaced relation thereto and having a free end forming said first abutment.
Claim 4
Dependent Claim
109 words
The invention of claim 2, said latch plate being stepped intermediate the opposed ends thereof presenting a shoulder defining said second abutment. 4 The invention of claim 1, said apparatus including a winding drum journaled by the support for rotation about a vertical axis, said bolt being freely rotatable relative to the rails when disposed in any one of said openings, said rails having overhanging elements engaged by said unit during rotation of the drum to take up said tie means for limiting the extent of lateral movement of said unit and for limiting the extent of tilt of the unit about the axis of rotation of said bolt.
Claim 5
Dependent Claim
25 words
The invention of claim 4, said support having a pair of members normally spaced below said elements and engageable therewith during tilting of the unit.
References Cited (Backward Citations)
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Cited
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US2159848A
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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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |