Patent US4597318A successfully refreshed from Google Patents.
Patent US3603428A successfully refreshed from Google Patents.
US3603428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scaffolding for the tanks of large tanker ships
Assignee: Individual
•
Filing: 1969-09-15
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Granted: 1971-09-07
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Expires: 1989-09-15
Abstract
Abstract Scaffolding for the construction, cleaning and repair of the interior of the tanks of large tanker ships consists of permanently emplaced wire netting secured to the sides of the tank.
Inventors
- 👤 Otto Hanses
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:34
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/08; B63; B63B; B63B25/00; B63B25/02; B63B25/08; E; E04; E04G; E04G3/00; E04G3/20; E04G3/24; E04G3/246; E04G3/28; E04G3/30; E04G3/305
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
42 words
A tanker ship having a tank having upright tank walls, and scaffolding for the interior of the tank, comprising wire cables attached at their ends to said walls, and horizontal wire netting strips supported by and between the cables adjacent said walls.
Claim 2
Dependent Claim
42 words
A tanker ship having a tank having upright tank walls, and scaffolding for the interior of the tank, comprising wire cables attached at their ends to said walls, and horizontal wire netting strips supported by and between the cables adjacent said walls.
Claim 3
Dependent Claim
28 words
Structure as claimed in claim 1, disposed adjacent the top of the tank and extending continuously from side-to-side and from end-to-end of the upper portion of the tank.
Claim 4
Dependent Claim
27 words
Structure as claimed in claim 1, disposed only adjacent the sidewalls of the tank, and a guard railing upstanding from only the inner edges of the scaffolding.
Claim 5
Dependent Claim
12 words
Structure as claimed in claim 3, said guard railing comprising wire netting.
Claim 6
Dependent Claim
13 words
Structure as claimed in claim 4, and wire cables reinforcing said guard railing.
Claim 7
Dependent Claim
26 words
Structure as claimed in claim 1, each said strip being bordered by a wire cable, and means securing said cables to the walls of the tank.
Claim 8
Dependent Claim
22 words
Structure as claimed in claim 6, and tensioning devices for adjusting the length of the wire cables that bound the netting strips.
Claim 9
Dependent Claim
24 words
Structure as claimed in claim 16, the longitudinal edges of said strips overlapping each other, and means interconnecting said overlapping edges of the strips.
Claim 10
Dependent Claim
17 words
Structure as claimed in claim 8, said interconnecting means comprising wire coils passing through said overlapping edges.
Claim 11
Dependent Claim
22 words
Structure as claimed in claim 16, at least some of said wire cables being beneath portions of with said wire netting strips.
Claim 12
Dependent Claim
15 words
Structure as claimed in claim 10, and a platform resting on said wire netting strips.
Claim 13
Dependent Claim
39 words
Structure as claimed in claim 1, said cables having enlarged ends, and fasteners secured to the walls of the tank for releasably receiving said enlarged cable ends, said fasteners comprising upwardly open downwardly closed cradles aligned with said cables.
Claim 14
Dependent Claim
42 words
Structure as claimed in claim 1, and work platforms resting by gravity on said wire netting, each work platform having at least one downwardly extending projection that extends through the wire netting to restrain lateral movement of the platform on the netting.
Claim 15
Dependent Claim
34 words
Structure as claimed in claim 13, each work platform having a slot extending from said projection and of a size to receive projections from other work platforms thereby to render said work platforms stackable.
Claim 16
Dependent Claim
14 words
Structure as claimed in claim 1, whose material is steel coated with synthetic resin.
Claim 17
Dependent Claim
29 words
Structure as claimed in claim 1, and support means holding apart a pair of parallel cables against the tendency of the cables to move toward each other under load.
Claim 18
Dependent Claim
35 words
Structure as claimed in claim 1, and a plurality of connectors spaced along a said tank wall along which the scaffolding extends and interconnecting the scaffolding with the wall and extending perpendicular to the wall.
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) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |