Patent US4805735A successfully refreshed from Google Patents.
US4805735A
Expired / Lapsed
US
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Scaffolding net system
Assignee: Individual
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Filing: 1988-02-28
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Granted: 1989-02-21
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Expires: 2008-02-28
Abstract
Abstract A guard system for a scaffolding arrangement having upper and lower platforms traversing a pair of spaced apart poles. The platforms respectively project from opposing directions of a plane defined by the poles. The guard system includes a net wall which spans the gap between the upper and lower platforms. A clamping arrangement clamps the upper edge of the net wall to the upper platform and a lower edge of the net wall to the lower platform.
Inventors
- 👤 Carl Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:54
CPC Classifications
E; E04; E04G; E04G5/00; E04G5/12; E04G1/00; E04G1/18; E04G1/20; E04G5/001; E04G5/14; E04G2005/148
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
77 words
A guard system for a scaffolding arrangement having upper and lower sections respectively traversing a pair of spaced apart poles, the sections respectively located on opposing directions of a plane defined by the poles, said guard system comprising net means spanning the gap between said upper and lower sections, and clamping means for clamping an upper edge of the net means to the upper sections and a lower edge of the net means to the lower section.
Claim 2
Dependent Claim
77 words
A guard system for a scaffolding arrangement having upper and lower sections respectively traversing a pair of spaced apart poles, the sections respectively located on opposing directions of a plane defined by the poles, said guard system comprising net means spanning the gap between said upper and lower sections, and clamping means for clamping an upper edge of the net means to the upper sections and a lower edge of the net means to the lower section.
Claim 3
Dependent Claim
15 words
A guard system as in claim 1, wherein said lower section is a staging platform.
Claim 4
Dependent Claim
14 words
A guard system as in claim 1, wherein said upper section is a workbench.
Claim 5
Dependent Claim
17 words
A guard system as in claim 1, wherein said net means is of a flexible mesh material.
Claim 6
Dependent Claim
19 words
A guard system as in claim 4, and wherein said mesh material proximately extends in length between said poles.
Claim 7
Dependent Claim
35 words
A guard system as in claim 1, wherein said net means comprises a plurality of grommets spaced along the upper and lower edges thereof, and wherein said clamping means comprises posts extending through said grommets.
Claim 8
Dependent Claim
36 words
A guard system as in claim 1, wherein said upper and lower sections include an I-rail having a web portion and top and bottom flanges, and wherein said means for clamping secures on to said I-rail.
Claim 9
Dependent Claim
79 words
A guard system as in claim 5, wherein said clamping means comprises a pair of arm members for sandwiching a flange of the I-rail, a post loosely extending through an edge of said net means and through said pair of arm members, locking means for preventing removal of the pair of arm members from said post, and lever means pivotally coupled to said post for clamping the pair of arm members in position on either side of the flange.
Claim 10
Dependent Claim
14 words
A guard system as in claim 8, wherein said arm members are substantially identical.
Claim 11
Dependent Claim
69 words
A guard system as in claim 7, wherein said clamping means comprises a U-shaped member having a pair of opposing legs and an interconnecting bight portion, said legs grasping on either side of a flange of the I-rail, a threaded aperture in one of said legs, and a threaded post for insertion through an edge of the net means and clamping on to the web portion of the I-rail.
Claim 12
Dependent Claim
17 words
A guard system as in claim 10 wherein the other leg has its distal end inwardly bent.
Claim 13
Dependent Claim
68 words
A scaffolding arrangement comprising at least two horizontally spaced apart vertical poles, a pair of vertically spaced apart scaffold sections spanning between said poles, each section extending in opposite directions from a plane defined by said poles, a flexible wall member extending between said sections in a substantially vertical direction, and coupling means for removably securing opposing upper and lower edges of said flexible wall to respective sections.
Claim 14
Dependent Claim
68 words
A scaffolding arrangement comprising at least two horizontally spaced apart vertical poles, a pair of vertically spaced apart scaffold sections spanning between said poles, each section extending in opposite directions from a plane defined by said poles, a flexible wall member extending between said sections in a substantially vertical direction, and coupling means for removably securing opposing upper and lower edges of said flexible wall to respective sections.
Claim 15
Dependent Claim
14 words
A scaffolding arrangement as in claim 12, wherein said flexible wall comprises a net.
Claim 16
Dependent Claim
21 words
A scaffolding arrangement as in claim 13, and comprising spaced apart grommets along the upper and lower edges of the net.
Claim 17
Dependent Claim
25 words
A scaffolding arrangement as in claim 12, wherein said upper and lower sections are spaced from said plane, whereby said flexible wall is angularly oriented.
Claim 18
Dependent Claim
28 words
A scaffolding arrangement as in claim 12, wherein an upper one of said sections is a workbench, and a lower one of said sections is a work platform.
Claim 19
Dependent Claim
33 words
A scaffolding arrangement as in claim 12, wherein said sections include an I-rail having a web portion and top and bottom flanges, and wherein said coupling means secures to one of said flanges.
Claim 20
Dependent Claim
85 words
A scaffolding arrangement as in claim 17, wherein said coupling means comprise a pair of clamping arm members for sandwiching a flange of the I-rail, post means loosely extending through an edge of said flexible wall and through said pair of clamping arm members, locking means for preventing removal of the pair of clamping arm members from said post means, and lever means pivotally coupled to said post means for clamping the pair of clamping arm members in position on either side of the flange.
Claim 21
Dependent Claim
74 words
A scaffolding arrangement as in claim 17, wherein said clamping means comprises a U-shaped member having a pair of opposing legs and an interconnecting bight portion, said legs grasping on either side of a flange of the I-rail, a threaded aperture in one of said legs, and a threaded post for insertion through an edge of the net means and through said threaded aperture and clamping on to the web portion of the I-beam.
Claim 22
Dependent Claim
17 words
A scaffolding arrangement as in claim 19, wherein the other leg has its distal end inwardly bent.
Claim 23
Dependent Claim
40 words
A scaffolding arrangement as in claim 17, wherein the lower edge of the flexible wall wraps around the flange of a lower one of the sections to thereby close off any space between the flexible wall and the lower platform.
Claim 24
Dependent Claim
28 words
A scaffolding arrangement as in claim 12, wherein said poles are pump jack poles, and further comprising pump jacks on each pole, said pump jacks supporting said platforms.
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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) | 1992-02-21 | 1992-08-22 | 1993-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-21 | 1996-08-22 | 1997-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-21 | 2000-08-22 | 2001-02-21 | $7700.00 | Window Closed / Lapsed |