Patent US3583594A successfully refreshed from Google Patents.
US3583594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic floating deck for storage tanks and method of construction thereof
Assignee: Individual
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Filing: 1969-08-14
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Granted: 1971-06-08
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Expires: 1989-08-14
Abstract
Abstract A floating deck is constructed of a foamed plastic formed in place within a channelled rigid peripheral ring and is provided with elongated tension member carried by said ring and embedded in said plastic and also a reinforced sheet above and below which the plastic body is formed. Adjustable legs are provided to facilitate construction and repair.
Inventors
- 👤 Walter E Belanger
- 👤 Donald T Levitre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:49
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/34
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
127 words
A floating deck of plastic material for a volatile liquids storage vessel having an upstanding peripheral wall, wherein the deck comprises: (a) a rigid pEripheral member surrounding substantially the entire cross-sectional area within said wall; (b) elongated tension members connected to said peripheral member and extending across the span of said deck within said peripheral member; (c) a body of plastic material embedding and filling the voids around said tension members, in sealing contact with said peripheral member, and covering substantially the entire area surrounded by said peripheral member; (d) said peripheral member being of sufficient rigidity to maintain said tension member under substantial tension within said body so as to impart substantial weight bearing strength in a direction normal to the principal plane of said body.
Claim 2
Dependent Claim
127 words
A floating deck of plastic material for a volatile liquids storage vessel having an upstanding peripheral wall, wherein the deck comprises: (a) a rigid pEripheral member surrounding substantially the entire cross-sectional area within said wall; (b) elongated tension members connected to said peripheral member and extending across the span of said deck within said peripheral member; (c) a body of plastic material embedding and filling the voids around said tension members, in sealing contact with said peripheral member, and covering substantially the entire area surrounded by said peripheral member; (d) said peripheral member being of sufficient rigidity to maintain said tension member under substantial tension within said body so as to impart substantial weight bearing strength in a direction normal to the principal plane of said body.
Claim 3
Dependent Claim
140 words
A deck as specified in claim 1 in which (a) said deck has secured thereto a plurality of legs, each of said legs being adjustable to a lower position at which said deck is supported at a minimum height above the bottom of the vessel as liquid is drained therefrom, each of said legs also being adjustable to a higher position at which said legs also being adjustable to a higher position at which said deck is supported at sufficient distance above the bottom of said vessel as liquid is drained therefrom to provide adequate working space for a workman below said deck; (b) said weight bearing strength being sufficient to support the weight of said workman on the upper surface of said body; and (c) a passageway through said body to enable said workman to pass through said body.
Claim 4
Dependent Claim
26 words
A deck as specified in claim 1 in which said tension members are in sufficiently high tension to impart substantial radial compression to said plastic body.
Claim 5
Dependent Claim
60 words
A deck as specified in claim 1 in which (a) a thin sheet of material is located above said tension members covering substantially the entire area surrounded by said peripheral member, and (b) the plastic material is located both above and below said sheet so that said tension members and said sheet are embedded in said body of plastic material:
Claim 6
Dependent Claim
19 words
A deck as specified in claim 4 in which said sheet is supported in tension from said peripheral member.
Claim 7
Dependent Claim
19 words
A deck as specified in claim 5 in which said sheet is backed by a wire mesh secured thereto:
Claim 8
Dependent Claim
26 words
A deck as specified in claim 5 in which said tension members are in sufficiently high tension to impart substantial radial compression to said plastic body.
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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) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |