US3602183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hatch cover of the side-rolling type
Assignee: Associated Cargo Gear AB
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Filing: 1969-09-12
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Granted: 1971-08-31
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Expires: 1989-09-12
Abstract
Abstract In order to minimize the obstacles on the deck surrounding a hatch opening adapted to be covered by sidewards rolling cover sections, fixed wheels are arranged on the coaming and on pillars outside the coaming, respectively, and located in lines forming extensions of two parallel sides of the coaming. Each section is at two sides being parallel to the moving direction, provided with a downwardly directed side portion extending along, but at some distance from the pertaining side of the coaming, mechanically operated sealing members being arranged to bridge the gap between such a downwardly directed portion and the adjacent side of the coaming.
Inventors
- 👤 Reinhardt Olai Aarvold
- 👤 Erik Holger Isaksson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:43
CPC Classifications
B; B63; B63B; B63B19/00; B63B19/12; B63B19/14; B63B19/18
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
135 words
In a hatch cover a coaming surrounding an opening and at least one cover section movable in the horizontal plane in relation to said coaming to open and to close said opening, respectively, an outwardly directed flange at each of the two sides of the coaming parallel to the direction of movement of the cover section, a downwardly directed portion at each pertaining side of the cover section running parallel to the adjacent flange of the coaming to form an elongated gap between said flange and said downwardly directed portion, a sealing member running along said gap, and mechanical means including compression springs forcing said sealing member towards edge portions of said flange, at opposite sides of said gap, as well as fluid-opeRated rams for temporarily breaking the sealing contact during operation of the covers.
Claim 2
Dependent Claim
135 words
In a hatch cover a coaming surrounding an opening and at least one cover section movable in the horizontal plane in relation to said coaming to open and to close said opening, respectively, an outwardly directed flange at each of the two sides of the coaming parallel to the direction of movement of the cover section, a downwardly directed portion at each pertaining side of the cover section running parallel to the adjacent flange of the coaming to form an elongated gap between said flange and said downwardly directed portion, a sealing member running along said gap, and mechanical means including compression springs forcing said sealing member towards edge portions of said flange, at opposite sides of said gap, as well as fluid-opeRated rams for temporarily breaking the sealing contact during operation of the covers.
Claim 3
Dependent Claim
56 words
A hatch cover according to claim 1 in which the flange at the coaming as well as the downwardly directed portion of the cover section is each provided with a downwardly directed portion of the cover section is each provided with a downwardly directed ledge serving as abutment for a single-packing element in the seating member.
Claim 4
Dependent Claim
104 words
A hatch cover according to claim 1 as utilized with covers where the lower edge of the downwardly directed portion is designed as a governing rail cooperating with wheels carried by the coaming, and in which an inwardly directed flange at the cover section is arranged on a higher level than the flange in the juxtaposed side of the coaming, the improvement of the sealing member comprising two separate strips of packing material, one of the packing strips, preferably the outermost one, being fixed to the flange at the cover, whereas the other strip, preferably the innermost one, is fixed to the sealing member.
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) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |