Patent US3682271A successfully refreshed from Google Patents.
US3682271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scaffolding
Assignee: Individual
•
Filing: 1970-07-28
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Granted: 1972-08-08
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Expires: 1990-07-28
Abstract
Abstract The improvement in portable scaffolding is disclosed comprising, in combination, a base, a pair of joined together uprights pivotally supported at opposite ends of the base, said uprights having a stowage position on the base in which they are horizontally disposed and a work position in which they are vertically disposed, means for holding said uprights vertically disposed in their work position, means including a different construction of one of the pair of uprights than the other pair of uprights for holding said uprights horizontally disposed in their stowage positions, each pair of uprights having no transverse bracing means therebetween above the upper halves thereof, said uprights also having no longitudinal bracing at the upper ends thereof so that said scaffolding provides unobstructed reaching space on all sides thereof between and above the tops of said uprights, said uprights having longitudinally spaced apart aperture means thereon for supporting work-upon means in vertically spaced horizontal work positions.
Inventors
- 👤 Joseph Emmett Boyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:03
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/34
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
154 words
In portable scaffolding, the improvement comprising, in combination, a base, a pair of joined together uprights pivotally supported at opposite ends of the base, said uprights having a stowage position on the base in which they are horizontally disposed and a work position in which they are vertically disposed, means for holding said uprights vertically disposed in their work position, means including a different construction of one of the pair of uprights than the other pair of uprights for holding said uprights horizontally disposed in their stowage positions, each pair of uprights having no transverse bracing means therebetween above the upper halves thereof, said uprIghts also having no longitudinal bracing at the upper ends thereof so that said scaffolding provides unobstructed reaching space on all sides thereof between and above the tops of said uprights, said uprights having longitudinally spaced apart aperture means thereon for supporting work-upon means in vertically spaced horizontal work positions.
Claim 2
Dependent Claim
154 words
In portable scaffolding, the improvement comprising, in combination, a base, a pair of joined together uprights pivotally supported at opposite ends of the base, said uprights having a stowage position on the base in which they are horizontally disposed and a work position in which they are vertically disposed, means for holding said uprights vertically disposed in their work position, means including a different construction of one of the pair of uprights than the other pair of uprights for holding said uprights horizontally disposed in their stowage positions, each pair of uprights having no transverse bracing means therebetween above the upper halves thereof, said uprIghts also having no longitudinal bracing at the upper ends thereof so that said scaffolding provides unobstructed reaching space on all sides thereof between and above the tops of said uprights, said uprights having longitudinally spaced apart aperture means thereon for supporting work-upon means in vertically spaced horizontal work positions.
Claim 3
Dependent Claim
42 words
In portable scaffolding, the improvement as claimed in claim 1, further comprising work-upon means, said work-upon means having support means constructed to be received in said aperture means for supporting said work-upon means in vertically spaced horizontal work positions on said scaffolding.
Claim 4
Dependent Claim
30 words
In portable scaffolding, the improvement as claimed in claim 2, stowage means for stowing work-upon means between the base and said uprights when the latter are in their stowage positions.
Claim 5
Dependent Claim
47 words
In portable scaffolding,the improvement as claimed in claim 1, one of said pairs of uprights slidable transversely of the base so as to be capable of being disposed side by side in the same elevation in respect to the other pair of uprights in their stowage position.
Claim 6
Dependent Claim
63 words
In portable scaffolding, the improvement as claimed in claim 1, one of said pairs of uprights having a greater width than the other so that said pairs of uprights nest together in their stowage positions, the other inside the one pair, the uprights of each pair constructed so as to remain parallel to each other in all positions thereof relative to the base.
Claim 7
Dependent Claim
42 words
In portable scaffolding, the improvement as claimed in claim 2, each of said uprights having slotted aperture means therein in which parts of said work-upon means travel during movement of said work-upon means between its work positions in respect to said uprights.
Claim 8
Dependent Claim
71 words
In portable scaffolding, the improvement as claimed in claim 6, said longitudinally spaced apart aperture means on each of said uprights being longitudinally spaced apart right angled blind-ended aperture means therein in which parts of said work-upon means are received for supporting said work-upon means in its different work positions on said scaffolding, each of said right angled blind-ended aperture means having an open end opening to said slotted aperture means.
Claim 9
Dependent Claim
69 words
In portable scaffolding, the improvement as claimed in claim 1, each of said uprights supporting longitudinally spaced apart support blocks having aperture means therein in which aperture means, parts of said work-upon means are received for supporting said work-upon means in its different work positions on said scaffolding, each of said uprights having transversely spaced apart parallel members disposed in parallel longitudinal planes for holding therebetween said support blocks.
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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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |