Patent US4389468A successfully refreshed from Google Patents.
Patent US4262458A successfully refreshed from Google Patents.
US4262458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for mounting an inflatable dock seal
Assignee: Individual
•
Filing: 1979-03-05
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Granted: 1981-04-21
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Expires: 1999-03-05
Abstract
Abstract An inflatable dock seal for closing the area around a dock opening in a wall with respect to a railway car or the like is secured to said wall by devices comprising uninflated tubular members attached to said inflatable dock seal and rigid structural members positioned in said uninflated tubular members so as to extend longitudinally of the sections of the inflatable dock seal. Clamps are affixed to the wall in which the dock opening is located and adjacent thereto and the uninflated tubular members with their rigid structural members are engaged by said clamps to secure the dock seal to the building about the dock opening therein.
Inventors
- 👤 Larry O'Neal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:28
CPC Classifications
B; B65; B65G; B65G69/00; B65G69/008
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
123 words
An inflatable dock seal and mounting therefor for positioning said dock seal on a wall about a dock opening therein and comprising at least one inflatable member arranged in a continuous semi-circular shape and having an upper horizontal section, a pair of spaced side sections and a lower horizontal section, flexible non-inflatable longitudinally positioned tubular fastening members on the exterior of at least one of said sections, rigid elongated structural members slidably positioned in said fastening members, a plurality of clamps comprising C-shaped devices having movable members extendible into the area of said C-shape and fasteners securing said clamps to said wall adjacent said dock opening and arranged for detachable engagement with said elongated structural members and means for inflating said inflatable members.
Claim 2
Dependent Claim
123 words
An inflatable dock seal and mounting therefor for positioning said dock seal on a wall about a dock opening therein and comprising at least one inflatable member arranged in a continuous semi-circular shape and having an upper horizontal section, a pair of spaced side sections and a lower horizontal section, flexible non-inflatable longitudinally positioned tubular fastening members on the exterior of at least one of said sections, rigid elongated structural members slidably positioned in said fastening members, a plurality of clamps comprising C-shaped devices having movable members extendible into the area of said C-shape and fasteners securing said clamps to said wall adjacent said dock opening and arranged for detachable engagement with said elongated structural members and means for inflating said inflatable members.
Claim 3
Dependent Claim
141 words
An inflatable dock seal and mounting therefor for positioning said dock seal on a wall about a dock opening therein and comprising at least one inflatable member arranged in a continuous semi-circular shape and having an upper horizontal section, a pair of spaced side sections and a lower horizontal section, flexible non-inflatable longitudinally positioned tubular fastening members on the exterior of at least one of said sections, rigid elongated structural members slidably positioned in said fastening members, a plurality of clamps attached to said wall adjacent said dock opening and arranged for detachable engagement with said elongated structural members and means for inflating said inflatable members, each of said clamps comprising a section of a channel having a flat base and right angular flanges with set screws threadably positioned in threaded openings in at least one of said right angular flanges.
Claim 4
Dependent Claim
141 words
An inflatable dock seal and mounting therefor for positioning said dock seal on a wall about a dock opening therein and comprising at least one inflatable member arranged in a continuous semi-circular shape and having an upper horizontal section, a pair of spaced side sections and a lower horizontal section, flexible non-inflatable longitudinally positioned tubular fastening members on the exterior of at least one of said sections, rigid elongated structural members slidably positioned in said fastening members, a plurality of clamps attached to said wall adjacent said dock opening and arranged for detachable engagement with said elongated structural members and means for inflating said inflatable members, each of said clamps comprising a section of a channel having a flat base and right angular flanges with set screws threadably positioned in threaded openings in at least one of said right angular flanges.
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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) | 1984-04-20 | 1984-10-20 | 1985-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-20 | 1988-10-20 | 1989-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-20 | 1992-10-20 | 1993-04-21 | $7700.00 | Window Closed / Lapsed |