US4122916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scaffolding
Assignee: Individual
•
Filing: 1977-06-06
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Granted: 1978-10-31
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Expires: 1997-06-06
Abstract
Abstract A scaffold structure for attachment to wall surfaces. Telescoping horizontal members are supported at an inner end by a secured wall bracket. The horizontal members are usable to carry a work platform resting on their upper surfaces. They are supported intermediate their ends by a depending bracket mounted to either a vertical post resting on a ground surface or an angular support extending upward from a lower wall bracket. Their outer ends include vertically open brackets for mounting vertical boards to serve as ground supports and/or handrail supports. A protective handrail can be mounted to the vertical boards at the outer ends of the horizontal members. An upright fixed adjacent to the outer end of each horizontal member is intersected by a roof member to provide an alternate form of outer support.
Inventors
- 👤 William C. Strobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:51
CPC Classifications
E; E04; E04G; E04G3/00; E04G3/20; E04G1/00; E04G1/02; E04G1/04; E04G1/06; E04G1/34; E04G1/38; E04G5/00; E04G5/04; E04G5/041
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
177 words
A scaffold structure for placement on an upright wall element, comprising: first and second horizontal members adapted to support a horizontal work platform rested on the upper surfaces thereof; said first horizontal member having opposed inner and outer ends; means fixed to the inner end of the first horizontal member for securing it to an upright wall element at an above-ground elevation; said second horizontal member having opposed inner and outer ends, the inner end of the second horizontal member being telescopically supported on the outer end of said first horizontal member coaxial adjustment relative thereto; means for fixing said second horizontal member to said first horizontal member; a bracket fixed to the inner end of said second horizontal member; said bracket being open downwardly as well as vertically along a direction facing the first horizontal member; and upright support means affixed to said bracket and extending downward perpendicular to said horizontal members or downward at an angle inclined to a fixed reference, whereby the first and second horizontal members are elevationally supported intermediate their combined lengths.
Claim 2
Dependent Claim
177 words
A scaffold structure for placement on an upright wall element, comprising: first and second horizontal members adapted to support a horizontal work platform rested on the upper surfaces thereof; said first horizontal member having opposed inner and outer ends; means fixed to the inner end of the first horizontal member for securing it to an upright wall element at an above-ground elevation; said second horizontal member having opposed inner and outer ends, the inner end of the second horizontal member being telescopically supported on the outer end of said first horizontal member coaxial adjustment relative thereto; means for fixing said second horizontal member to said first horizontal member; a bracket fixed to the inner end of said second horizontal member; said bracket being open downwardly as well as vertically along a direction facing the first horizontal member; and upright support means affixed to said bracket and extending downward perpendicular to said horizontal members or downward at an angle inclined to a fixed reference, whereby the first and second horizontal members are elevationally supported intermediate their combined lengths.
Claim 3
Dependent Claim
47 words
A scaffold structure as set out in claim 1 wherein said bracket is complementary in transverse width to the size of dimension lumber; said upright support means comprising a board of such dimension lumber having a length suitable to extend between the bracket and a fixed reference.
Claim 4
Dependent Claim
39 words
A scaffold structure as set out in claim 2, further comprising: a wall bracket partially encircling the lower end of the board and fixed thereto, and having a vertical flange integral therewith for attachment to an upright wall element.
Claim 5
Dependent Claim
54 words
A scaffold structure as set out in claim 1 wherein said second horizontal member has a vertically open end bracket fixed to the outer end thereof and having an interior cross-sectional configuration complementary to the thickness and width of dimension lumber; and a vertical board of such dimension lumber fixed within the end bracket.
Claim 6
Dependent Claim
71 words
A scaffold structure as set out in claim 1 wherein said second horizontal member has a vertically open end bracket fixed to the outer end thereof having an interior cross-sectional configuration complementary to the thickness and width of dimension lumber; and a vertical board of such dimension lumber fixed within the end bracket, said vertical board extending above the elevation of said horizontal members for support of a horizontal rail assembly.
Claim 7
Dependent Claim
67 words
A scaffold structure as set out in claim 1 wherein said second horizontal member has a vertically open end bracket fixed to the outer end thereof having an interior cross-sectional configuration complementary to the thickness and width of dimension lumber; and a vertical board of such dimension lumber fixed within the end bracket, said vertical board extending below the elevation of said horizontal members to ground level.
Claim 8
Dependent Claim
67 words
A scaffold structure as set out in claim 1 further comprising: a longitudinally adjustable upright member having a lower end fixed to said second horizontal member adjacent the outer end thereof and extending upward therefrom; a rigid elongated member having an outer end intersecting said upright member and fixed thereto; and means on said elongated member overlying said horizontal members for fixing it to a roof surface.
Claim 9
Dependent Claim
120 words
A scaffold structure as set out in claim 1 further comprising: a longitudinally adjustable upright member having a lower end fixed to said second horizontal member adjacent the outer end thereof and extending upward therefrom; a rigid elongated member having an outer end intersecting said upright member and fixed thereto; and means on said elongated member overlying said horizontal members for fixing it to a roof surface, said last-named means comprising an interconnection between the upright member and said rigid elongated member at a location inwardly spaced from its outer end; and a rigid brace having one end fixed to said upright member below said interconnection and its remaining end fixed to the rigid elongated member outward from said interconnection.
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) | 1981-10-30 | 1982-05-01 | 1982-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-30 | 1986-05-01 | 1986-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-30 | 1990-05-01 | 1990-10-31 | $7700.00 | Window Closed / Lapsed |