Patent US5243180A successfully refreshed from Google Patents.
Patent US3618818A successfully refreshed from Google Patents.
US3618818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-resistant enclosure
Assignee: Tractebel Engineering SA
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Filing: 1969-11-21
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Granted: 1971-11-09
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Expires: 1989-11-21
Abstract
Abstract A generally cylindrical vessel subject to internal pressure is surrounded by one or more hoops each consisting of at least one winding of a flat strip bearing upon a multiplicity of peripherally spaced webs under the pressure of spring-loaded clamping plates mounted on these webs.
Inventors
- 👤 Andre Puyo
- 👤 Jack Picaut
- 👤 Robert Saglio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:41
CPC Classifications
F; F17; F17C; F17C1/00; F17C1/02; B; B01; B01J; B01J3/00; B01J3/04; B01J3/048; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2203/00; F17C2203/01; F17C2203/011; F17C2203/013; F17C2205/00; F17C2205/01; F17C2205/0153; F17C2205/018; F17C2205/03; F17C2205/0302; F17C2205/0305; F17C2209/00; F17C2209/22; F17C2209/228
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
63 words
An enclosure reinforced against internal pressures, comprising a generally cylindrical wall provided with peripherally spaced external projections, at least one flat elastic strip wound in a multiplicity of superposed turns with freedom of limited relative stress-equalizing slippage about said wall and bearing upon said projections, and clamping means resiliently maintaining the turns of said strip in mutual contact and alignment at said projections.
Claim 2
Dependent Claim
63 words
An enclosure reinforced against internal pressures, comprising a generally cylindrical wall provided with peripherally spaced external projections, at least one flat elastic strip wound in a multiplicity of superposed turns with freedom of limited relative stress-equalizing slippage about said wall and bearing upon said projections, and clamping means resiliently maintaining the turns of said strip in mutual contact and alignment at said projections.
Claim 3
Dependent Claim
25 words
An enclosure as defined in claim 1 wherein said projections are axially extending webs supporting a plurality of such wound strips at axially spaced locations.
Claim 4
Dependent Claim
27 words
An enclosUre as defined in claim 2 wherein said clamping means comprises independent clamps for each strip on said webs, said clamps resting freely on said webs.
Claim 5
Dependent Claim
16 words
An enclosure as defined in claim 1 wherein said projections are peripherally equispaced around said wall.
Claim 6
Dependent Claim
13 words
An enclosure as defined in claim 1 wherein said strip consists of metal.
Claim 7
Dependent Claim
81 words
An enclosure reinforced against internal pressures, comprising a generally cylindrical wall provided with peripherally spaced external projections, at least one flat strip wound in a multiplicity of turns about said wall and bearing upon said projections, and clamping means resiliently maintaining the turns of said strip in mutual contact at said projections; said clamping means comprising a pair of radially spaced jaws resting on each of said projections while bracketing said turns, and spring means urging said jaws toward each other.
Claim 8
Dependent Claim
81 words
An enclosure reinforced against internal pressures, comprising a generally cylindrical wall provided with peripherally spaced external projections, at least one flat strip wound in a multiplicity of turns about said wall and bearing upon said projections, and clamping means resiliently maintaining the turns of said strip in mutual contact at said projections; said clamping means comprising a pair of radially spaced jaws resting on each of said projections while bracketing said turns, and spring means urging said jaws toward each other.
Claim 9
Dependent Claim
37 words
An enclosure as defined in claim 6 wherein said jaws include an inner plate and an outer plate, said inner plate being provided with bolt means traversing said outer plate, said spring means surrounding said bolt means.
Claim 10
Dependent Claim
21 words
An enclosure as defined in claim 7 wherein said bolt means comprises a pair of axially spaced bolts flanking said turns.
Claim 11
Dependent Claim
22 words
An enclosure as defined in claim 7, further comprising tensioning means independent of said spring means bearing radially outwardly upon said strip.
Claim 12
Dependent Claim
22 words
An enclosure as defined in claim 9 wherein said tensioning means comprises spacing means interposed between said projections and said inner plates.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |