US3908793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable metal scaffold
Assignee: Chicago Bridge and Iron Co
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Filing: 1974-11-01
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Granted: 1975-09-30
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Expires: 1994-11-01
Abstract
Abstract A scaffold module having a first section comprising a horizontal deck having a tongue of reduced width extending outwardly from one end of the deck, a middle section comprising an elongated horizontal deck having a tongue of reduced width at one end of the deck and a support means extending outwardly from the second end of the deck, said first section tongue being in slidable contact with the top of the support means, and with the bottom, of the middle section deck, and a third section comprising a horizontal deck and a support means extending outwardly from one end of the deck, said middle section tongue being in slidable contact with the top of the support means, and with the bottom, of the third section deck.
Inventors
- 👤 John Edward Vaughn
- 👤 William Bradley Dixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:54
CPC Classifications
E; E04; E04G; E04G5/00; E04G5/06; E04G5/04; E04G5/046; E04G5/062
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
126 words
A scaffold module comprising: a first section comprising a horizontal deck having a tongue of reduced width extending outwardly from one end of the deck; a middle section comprising an elongated horizontal deck having a tongue of reduced width at one end of the deck and a support means extending outwardly from the second end of the deck; said first section tongue being in slidable contact with the top of the support means, and with the bottom, of the middle section dEck; and a third section comprising a horizontal deck and a support means extending outwardly from one end of the deck; said middle section tongue being in slidable contact with the top of the support means, and with the bottom, of the third section deck.
Claim 2
Dependent Claim
126 words
A scaffold module comprising: a first section comprising a horizontal deck having a tongue of reduced width extending outwardly from one end of the deck; a middle section comprising an elongated horizontal deck having a tongue of reduced width at one end of the deck and a support means extending outwardly from the second end of the deck; said first section tongue being in slidable contact with the top of the support means, and with the bottom, of the middle section dEck; and a third section comprising a horizontal deck and a support means extending outwardly from one end of the deck; said middle section tongue being in slidable contact with the top of the support means, and with the bottom, of the third section deck.
Claim 3
Dependent Claim
30 words
A scaffold module according to claim 1 including means to releasably secure at an angle the first section to the middle section, and the middle section to the third section.
Claim 4
Dependent Claim
144 words
A scaffold module comprising: a first section comprising a horizontal deck having vertically projecting side flanges and a tongue of reduced width extending outwardly from one end of the deck; a middle section comprising an elongated horizontal deck having vertically projecting side flanges, a tongue of reduced width at one end of the deck and a cantilevered support means extending outwardly from the second end of the deck; said first section tongue being in slidable contact with the top of the cantilevered support means, and with the bottom, of the middle section deck; and a third section comprising a horizontal deck having vertically projecting side flanges and a cantilevered support means extending outwardly from one end of the deck; said middle section tongue being in slidable contact with the top of the cantilevered support means, and with the bottom, of the third section deck.
Claim 5
Dependent Claim
144 words
A scaffold module comprising: a first section comprising a horizontal deck having vertically projecting side flanges and a tongue of reduced width extending outwardly from one end of the deck; a middle section comprising an elongated horizontal deck having vertically projecting side flanges, a tongue of reduced width at one end of the deck and a cantilevered support means extending outwardly from the second end of the deck; said first section tongue being in slidable contact with the top of the cantilevered support means, and with the bottom, of the middle section deck; and a third section comprising a horizontal deck having vertically projecting side flanges and a cantilevered support means extending outwardly from one end of the deck; said middle section tongue being in slidable contact with the top of the cantilevered support means, and with the bottom, of the third section deck.
Claim 6
Dependent Claim
17 words
A scaffold module according to claim 3 in which the first, middle and third sections are metal.
Claim 7
Dependent Claim
37 words
A scaffold module according to claim 3 including an adjustable connector to releasably secure each side edge of the first section to the middle section, and each side edge of the middle section to the third section.
Claim 8
Dependent Claim
73 words
A scaffold module according to claim 5 in which each connector is a bar pivotally joined to a second bar, and the first bar is releasably secured to the side edge of one section and the second bar is releasably secured to the side edge of the adjoining section, said connectors being capable of securing at an angle the first section to the middle section, and the middle section to the third section.
Claim 9
Dependent Claim
74 words
A scaffold module according to claim 3 in which the first section has means at the other end of the deck for releasably securing it to the end of the third section of an abutting similar scaffold module, and the third section of the module of claim 3 has means at the other end of the deck for releasably securing it to the end of the first section of an abutting similar scaffold module.
Claim 10
Dependent Claim
90 words
A scaffold module according to claim 3 in which the middle section of a first side of the module has vertical pins near the ends of the section, and the second side of the scaffold module has vertical pins at the outer ends of the first and third sections and in about the center of the middle section, said pins being sized to fit into brackets mounted on a vertical surface to thereby support the scaffold module with one side of the module at a time adjacent said vertical surface.
Claim 11
Dependent Claim
39 words
A scaffold module according to claim 3 in which the middle section has a pair of braces beneath the deck which can bear against a vertical surface on which the scaffold module is mounted to keep the module level.
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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |