US3873146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tether release device
Assignee: Campbell Industries
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Filing: 1974-04-17
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Granted: 1975-03-25
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Expires: 1994-04-17
Abstract
Abstract A device to release and recapture a tether under load incorporating a frame with a tether restraining notch. The notch cooperates with a trigger and entraps a tether. The load is carried through the frame. For release, the trigger lifts the tether out of engagement with the frame and provides a disengagement path so that the tether may be drawn out of the tether restraining notch.
Inventors
- 👤 Glen Nicholas Houshar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:23
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/22; B66C1/34; B63; B63B; B63B21/00; B63B21/56; B63B21/58; B63B21/60
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
124 words
In a device for controlably restraining and releasing a load attached to a tether, comprising: a frame, trigger means carried on a pivot bearing on said frame for pivotal movement between tether restraining and tether release positions, means for pivoting said trigger means between said tether restraining and tether release positions, a tether restraining notch in said frame spaced from said pivot bearing, said trigger means in said tether restraining position and said tether restraining notch prevent the release of said tether over a range of tether pull directions in excess of 180* about an axis parallel to the axis of said bearing, said trigger means includes a tether lift means for lifting a tether free of the restraint of said tether restraining notch.
Claim 2
Dependent Claim
124 words
In a device for controlably restraining and releasing a load attached to a tether, comprising: a frame, trigger means carried on a pivot bearing on said frame for pivotal movement between tether restraining and tether release positions, means for pivoting said trigger means between said tether restraining and tether release positions, a tether restraining notch in said frame spaced from said pivot bearing, said trigger means in said tether restraining position and said tether restraining notch prevent the release of said tether over a range of tether pull directions in excess of 180* about an axis parallel to the axis of said bearing, said trigger means includes a tether lift means for lifting a tether free of the restraint of said tether restraining notch.
Claim 3
Dependent Claim
40 words
The device claimed in claim 1, wherein; a portion of said frame comprises a tether entrapment lug means for preventing a tether from being withdrawn from said notch in any direction when said trigger is in said tether restraining position.
Claim 4
Dependent Claim
39 words
The device claimed in claim 2, wherein; said tether entrapment lug means includes alligned holes, and a safety lock pin means for engagement with said aligned holes and preventing movement of said trigger means from said tether restraining position.
Claim 5
Dependent Claim
34 words
The device as claimed in claim 1, wherein; said frame comprises two substantially planar vertically oriented side frames spaced from one another, said trigger is carried on said pivot bearing between said side frames.
Claim 6
Dependent Claim
38 words
The device claimed in claim 1, wherein; said trigger includes an actuating arm, sAid actuating arm being pivotally connected to an end of a hydraulic cylinder, the opposite end of said hydraulic cylinder being connected to said frame.
Claim 7
Dependent Claim
35 words
The device claimed in claim 1, wherein; said tether restraining notch comprises an arcuate slot having a side adjacent said pivot that corresponds to the circumference of a circle having a center on said pivot.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |