US3604304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duct joint pin
Assignee: Federal Aviation Administration
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Filing: 1969-10-27
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Granted: 1971-09-14
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Expires: 1989-10-27
Abstract
Abstract A duct joint pin for joining apertured metal sheets or the like and for sealing the apertures of the metal sheets. The pin has a latch pivotally mounted on one end, a tubular body, and a flange on the end opposite the latch with a depending sealing O-ring. A pair of levers extend from heads located outside the tubular body through the tubular body to ends adapted to engage the latch selectively to position the latch in either substantial alignment with the tubular body for insertion in or removal of the pin from the apertured metal sheets, or in a locking position transverse to the tubular body of the pin. The locking of the latch retains the sealing O-ring depending from the flange of the tubular body in sealing engagement with the apertured metal sheets. A sealing ring is positioned in the tubular body of the pin to surround the levers and seal off the area between the levers and the inside of the tubular body.
Inventors
- 👤 Harry A Botting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:27
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/06; F16B5/0607; F16B5/0621; F16B5/0642; B; B25; B25B; B25B31/00; B25B31/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
308 words
A device for joining together juxtaposed apertured duct members or the like, which comprises: a. a tubular pin for insertion through two or more juxtaposed apertured duct members; b. a stop member carried by the pin and adapted to engage one of the apertured duct members to limit amount of insertion; c. a pin locking means carried by the pin opposite the stop member and adapted to pass through the apertured duct members; and d. dual operator means for locking and unlocking the pin locking means for retention and withdrawal of the pin; the pin locking means and means for locking and unlocking the locking means comprising: a. an elongated latch pivotally mounted on the end of the pin opposite the stop member of the pin, the latch being mounted nearer one of its ends than the other to define longer and shorter ends thereof; b. biasing means normally retaining the latch in the locked position; c. a first unitary lever having one end for engaging the shorter end of the latch when it is in substantial alignment with the pin, a shank passing through the tubular pin, and an exterior end which constitutes a rest for manipulating the lever; d. a second unitary lever being axially longer than the first lever and having an end for engaging the longer end of the latch when it is in a position transverse to the pin, a shank passing through the tubular pin, and an exterior end forming a rest for the operator''s hand when manipulating the lever; and e. means normally biasing the first and second levers away from the latch; Whereby the latch after insertion through the apertured duct members may be urged to a position transverse the pin by the first lever, and thereafter can be substantially aligned with the pin by the second lever for removal.
Claim 2
Independent Claim
308 words
A device for joining together juxtaposed apertured duct members or the like, which comprises: a. a tubular pin for insertion through two or more juxtaposed apertured duct members; b. a stop member carried by the pin and adapted to engage one of the apertured duct members to limit amount of insertion; c. a pin locking means carried by the pin opposite the stop member and adapted to pass through the apertured duct members; and d. dual operator means for locking and unlocking the pin locking means for retention and withdrawal of the pin; the pin locking means and means for locking and unlocking the locking means comprising: a. an elongated latch pivotally mounted on the end of the pin opposite the stop member of the pin, the latch being mounted nearer one of its ends than the other to define longer and shorter ends thereof; b. biasing means normally retaining the latch in the locked position; c. a first unitary lever having one end for engaging the shorter end of the latch when it is in substantial alignment with the pin, a shank passing through the tubular pin, and an exterior end which constitutes a rest for manipulating the lever; d. a second unitary lever being axially longer than the first lever and having an end for engaging the longer end of the latch when it is in a position transverse to the pin, a shank passing through the tubular pin, and an exterior end forming a rest for the operator''s hand when manipulating the lever; and e. means normally biasing the first and second levers away from the latch; Whereby the latch after insertion through the apertured duct members may be urged to a position transverse the pin by the first lever, and thereafter can be substantially aligned with the pin by the second lever for removal.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |