Patent US3738232A successfully refreshed from Google Patents.
US3738232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylinder covers for fluid pressure cylinders
Assignee: Taiyo Iron Works Ltd
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Filing: 1970-06-22
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Granted: 1973-06-12
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Expires: 1990-06-22
Abstract
Abstract In a fluid pressure cylinder wherein a plurality of tie-bolts are fitted through a pair of covers, attached at both ends of a cylinder body, and clamped thereto by a plurality of nuts, the covers are provided with a plurality of recesses of the corner portions for lodging therein the clamping nuts; after the cylinder body and the covers are clamped together by said nuts, a fitting plate is mounted separately on at least one of the covers, and is attached by further nuts.
Inventors
- 👤 T Kado
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:28
CPC Classifications
F; F16; F16J; F16J10/00; F16J10/02; Y; Y10; Y10T; Y10T403/00; Y10T403/16
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
179 words
A cylinder cover arrangement and a fluid pressure cylinder, the latter having a body receiving a cover at each end, a piston rod reciprocable in said body, a plurality of tie-rods through appropriate bores of said cover and extending along said body, a plurality of first nuts threadedly engaged with said tie-rods outside said cover, for clamping the same and said body therebetween, wherein said cover has marginal recesses corresponding in number to that of said tie-rods and said first nuts, lodging the latter in a recessed manner, a fitting plate separate from said cover and having therein bores corresponding in number and loCation to that of said tie-rods, mounted onto said cover on the side of the latter facing away from said body, and a plurality of second nuts threadedly engaged with said tierods outside said fitting plate, providing releasable attaching means for said cylinder by the intermediary of said fitting plate, wherein the latter has depressions therein lodging said second nuts in a recessed manner, without any part protruding beyond the outer surface of said fitting plate.
Claim 2
Dependent Claim
179 words
A cylinder cover arrangement and a fluid pressure cylinder, the latter having a body receiving a cover at each end, a piston rod reciprocable in said body, a plurality of tie-rods through appropriate bores of said cover and extending along said body, a plurality of first nuts threadedly engaged with said tie-rods outside said cover, for clamping the same and said body therebetween, wherein said cover has marginal recesses corresponding in number to that of said tie-rods and said first nuts, lodging the latter in a recessed manner, a fitting plate separate from said cover and having therein bores corresponding in number and loCation to that of said tie-rods, mounted onto said cover on the side of the latter facing away from said body, and a plurality of second nuts threadedly engaged with said tierods outside said fitting plate, providing releasable attaching means for said cylinder by the intermediary of said fitting plate, wherein the latter has depressions therein lodging said second nuts in a recessed manner, without any part protruding beyond the outer surface of said fitting plate.
Claim 3
Dependent Claim
35 words
The cylinder cover arrangement as defined in claim 1, wherein said cover and said fitting plate have substantially planar abutting surfaces which provide an air-tight seal when said cylinder is assembled with said fitting plate.
Claim 4
Dependent Claim
26 words
The cylinder cover arrangement as defined in claim 1, wherein said fitting plate has a central cut-out therein, allowing the passage of said piston rod therethrough.
Claim 5
Dependent Claim
18 words
The cylinder cover arrangement as defined in claim 1, wherein said fitting plate is of substantially planar configuration.
Claim 6
Dependent Claim
21 words
The cylinder cover arrangement as defined in claim 1, wherein said fitting plate is in the form of an L-shaped bracket.
Claim 7
Dependent Claim
23 words
The cylinder cover arrangement as defined in claim 5, wherein the height of said fitting plate is less than that of said cover.
Claim 8
Dependent Claim
30 words
The cylinder cover arrangement as defined in claim 5, wherein said fitting plate has at least one locating lug protruding therefrom for immobilizing the same with respect to said cover.
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) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |