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US3752262A Expired / Lapsed US ⏱️ 0.0 years remaining

Scaffold guard rail assembly

Assignee: Individual
•
Filing: 1972-06-01
•
Granted: 1973-08-14
•
Expires: 1992-06-01
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Abstract

Abstract A guard rail assembly mounted on a conventional scaffolding structure to be used primarily during the construction of a building to protect workers from falling from the scaffolding and to prevent construction materials from being kicked from the scaffolding. The guard rail assembly comprises a plurality of spaced tubular guard rail posts, having lower ends matingly receiving reduced upper end portions of outer legs of the scaffolding structure and being carried thereby. A plurality of guard rail brackets are affixed to each guard rail post in vertical spaced relation, a plurality of horizontal guard rails being supportingly carried by said guard rail bracket and interconnecting the guard rail posts to provide a protective railing along the outer side edge of the platform.

Inventors

  • 👤 B Helms

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 08:09
CPC Classifications
E; E04; E04G; E04G5/00; E04G5/14; E04G2005/148; E04G7/00; E04G7/02; E04G7/28; E04G2007/285

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 385 words
In a scaffolding structure formed of a plurality of interconnected frame units and horizontally arranged floorboards defining a platform carried by the frame units, each of the frame units being upright and having spaced inner and outer tubular legs with the upper ends of the legs being of reduced size for aiding in matingly stacking and securing the frame units in vertical alignment for obtaining the desired height scaffolding structure and with each of the upper ends of the legs having a hole extending transversely therethrough, the combination therewith of a protective guard rail assembly comprising: a plurality of spaced tubular guard rail posts having their lower ends matingly receiving the reduced upper end portions of said outer legs and being supported thereby, each of said guard rail posts having a hole extending transversely through the lowEr end thereof in alignment with a corresponding hole extending through the reduced upper end portion of a corresponding one of said legs, post fastening means extending through said aligned holes for releasably interconnecting said legs and guard rail posts and for securing said guard rail posts against rotation relative to said frame units and floorboards, a plurality of guard rail brackets affixed to said guard rail posts in vertically spaced relation and including for each guard rail post at least one toeboard bracket aligned with corresponding ones of said aligned holes and enclosing a corresponding one of said post fastening means and at least one upper rail bracket adjacent the upper terminal end of the corresponding guard rail post, each of said brackets comprising an upwardly opening U-shaped channel member extending horizontally outwardly from a side of said corresponding guard rail post with said toeboard brackets having lower portions substantially flush with the lower end of the respective guard rail post, a plurality of horizontal guard rails supportingly carried by said guard rail brackets and interconnecting the guard rail posts to provide protective railings along the outer sides of the platform, certain of said horizontal guard rails being received in said toeboard brackets and cooperating therewith in enclosing said post fastening means, and rail fastening means for penetrating said upper rail brackets and those ones of said horizontal guard rails which are supportingly carried by said upper rail brackets for releasably securing said penetrated rails against accidental dislodgement.
Claim 2
Dependent Claim 385 words
In a scaffolding structure formed of a plurality of interconnected frame units and horizontally arranged floorboards defining a platform carried by the frame units, each of the frame units being upright and having spaced inner and outer tubular legs with the upper ends of the legs being of reduced size for aiding in matingly stacking and securing the frame units in vertical alignment for obtaining the desired height scaffolding structure and with each of the upper ends of the legs having a hole extending transversely therethrough, the combination therewith of a protective guard rail assembly comprising: a plurality of spaced tubular guard rail posts having their lower ends matingly receiving the reduced upper end portions of said outer legs and being supported thereby, each of said guard rail posts having a hole extending transversely through the lowEr end thereof in alignment with a corresponding hole extending through the reduced upper end portion of a corresponding one of said legs, post fastening means extending through said aligned holes for releasably interconnecting said legs and guard rail posts and for securing said guard rail posts against rotation relative to said frame units and floorboards, a plurality of guard rail brackets affixed to said guard rail posts in vertically spaced relation and including for each guard rail post at least one toeboard bracket aligned with corresponding ones of said aligned holes and enclosing a corresponding one of said post fastening means and at least one upper rail bracket adjacent the upper terminal end of the corresponding guard rail post, each of said brackets comprising an upwardly opening U-shaped channel member extending horizontally outwardly from a side of said corresponding guard rail post with said toeboard brackets having lower portions substantially flush with the lower end of the respective guard rail post, a plurality of horizontal guard rails supportingly carried by said guard rail brackets and interconnecting the guard rail posts to provide protective railings along the outer sides of the platform, certain of said horizontal guard rails being received in said toeboard brackets and cooperating therewith in enclosing said post fastening means, and rail fastening means for penetrating said upper rail brackets and those ones of said horizontal guard rails which are supportingly carried by said upper rail brackets for releasably securing said penetrated rails against accidental dislodgement.
Claim 3
Dependent Claim 64 words
In a scaffolding structure according to claim 1, wherein at least one of said guard rail posts defines a corner of the scaffolding and wherein each of said vertically spaced guard rail brackets affixed to said one guard rail post comprise a pair of U-shaped channel members arranged at right angles to each other for supportingly receiving corresponding ends of corner guard rails therein.
Claim 4
Dependent Claim 75 words
In a scaffolding structure according to claim 2, wherein said one guard rail post defining a corner of the scaffolding has upper, lower and intermediate guard rail brackets and wherein said pair of U-shaped channel members forming said lower bracket are vertically offset relative to each other to permit the ends of the floorboards of the platform to extend outwardly beyond the scaffolding underneath the uppermost of said pair of vertically offset U-shaped channel members.
Claim 5
Dependent Claim 58 words
In a scaffolding structure according to claim 1, wherein a stabilizing member is carried by and extends downwardly from the lower end of at least certain guard rail posts to a predetermined distance below said guard rail posts, said stabilizing member engaging the outer tubular leg adjacent thereto thereby enhancing the stability of the protective guard rail assembly.
Claim 6
Dependent Claim 98 words
In a scaffolding structure according to claim 1, wherein a stabilizing member is carried by and extends downwardly from the lower end of at least certain guard rail posts to a predetermined distance below said guard rail posts, each of said stabilizing members comprising an elongate member fixedly secured to the lower end of said certain guard rail posts and extending downwardly therefrom, and an inwardly facing arcuate member carried by the lower end of said elongate member, and partially encircling the outer tubular leg adjacent thereto to thereby enhance the stability of said protective guard rail assembly.
Claim 7
Dependent Claim 27 words
In a scaffolding structure according to claim 1, wherein vertically spaced fastening means are carried by said guard rail posts and adapted for securing screening material thereto.

References Cited (Backward Citations)

US859239A Cited
US2203113A Cited
US2573086A Cited
US2715017A Cited
US2883241A Cited
US3494478A Cited
US3480257A Cited
US3589682A Cited
US3564802A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-08-13 1977-02-12 1977-08-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-08-13 1981-02-12 1981-08-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-08-13 1985-02-12 1985-08-14 $7700.00 Window Closed / Lapsed

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