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US4037382A Expired / Lapsed US ⏱️ 0.0 years remaining

Scaffolding

Assignee: Form Scaff Pty Ltd
•
Filing: 1976-04-22
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Granted: 1977-07-26
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Expires: 1996-04-22
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Abstract

Abstract A scaffolding element comprises a triangular frame having a vertical member, a horizontal member and a diagonal member and further having a yoke at the free ends of the horizontal and diagonal members. This yoke has an upper arm with an aperture therein to receive the upper end of the vertical member of an adjacent frame and a lower arm. This lower arm has a slot into which the vertical member is received below the horizontal member.

Inventors

  • 👤 Daniel Jacobs

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 09:39
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/14; Y; Y10; Y10T; Y10T403/00; Y10T403/30

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 132 words
In a scaffolding element of the kind comprising a right angled triangular frame consisting of a vertical member, a horizontal member extending from near the upper end of the vertical member, an inclined member extending upwardly from near the lower end of the vertical member, an end element at the ends of horizontal and inclined members the improvement that the end element comprises a locating and locking yoke having an upper part and a lower part both fixed as to vertical movement relative to the horizontal member the upper part having an aperture of a diameter slightly greater than the diameter of the vertical member and the space between the upper and lower parts slightly greater than the distance between the end of the vertical member and the underside of the horizontal.
Claim 2
Dependent Claim 132 words
In a scaffolding element of the kind comprising a right angled triangular frame consisting of a vertical member, a horizontal member extending from near the upper end of the vertical member, an inclined member extending upwardly from near the lower end of the vertical member, an end element at the ends of horizontal and inclined members the improvement that the end element comprises a locating and locking yoke having an upper part and a lower part both fixed as to vertical movement relative to the horizontal member the upper part having an aperture of a diameter slightly greater than the diameter of the vertical member and the space between the upper and lower parts slightly greater than the distance between the end of the vertical member and the underside of the horizontal.
Claim 3
Dependent Claim 38 words
A scaffolding element as claimed in claim 1 in which the lower part is provided with a slot extending transversely to the direction of the vertical member and being slightly wider than the diameter of the vertical member.
Claim 4
Dependent Claim 25 words
A scaffolding element as claimed in claim 1 further comprising a collar on the vertical member near its upper end and above the horizontal member.
Claim 5
Dependent Claim 36 words
A scaffolding element as claimed in claim 1, wherein the lower part of said locating and locking yoke includes hook means for holding the vertical member of an adjacent second scaffolding element in hooked relationship thereto.
Claim 6
Dependent Claim 90 words
A construction comprising at least two courses of scaffolding elements each of which courses comprises at least three scaffolding elements as claimed in claim 2 the end of each scaffolding element having the vertical member of an adjacent element in that course passing through the aperture in the upper part and being received in the end of the slot in the lower part of the element, there further being provided locating pin means entering into and connecting the adjacent upper and lower ends of aligned vertical members of two courses.
Claim 7
Dependent Claim 19 words
A construction as claimed in claim 5 in which the locating pin means are separate from the scaffolding elements.
Claim 8
Dependent Claim 28 words
A construction as claimed in claim 6 further comprising locking pin means engaging the vertical members and the locating pin means to locate the latter to the frame.
Claim 9
Dependent Claim 159 words
A scaffold comprising a plurality of interlocked scaffolding elements, said scaffolding elements comprising a right-angled triangular frame consisting of a vertical member, a horizontal member extending from near the upper end of the vertical member, an inclined member extending upwardly from near the lower end of the vertical member to the end of the horizontal member furthest from said vertical member, and a locating and locking yoke at the end of said horizontal and inclined members, said yoke having an upper part and a lower part both fixed as to vertical movement relative to the horizontal member, the upper part having an aperture of a diameter slightly greater than the diameter of said vertical member, the lower member including means to hookedly engage the vertical member of an adjacent scaffolding element, the space between the upper and lower parts being slightly greater than the distance between the end of said vertical member and the underside of the horizontal member.
Claim 10
Dependent Claim 159 words
A scaffold comprising a plurality of interlocked scaffolding elements, said scaffolding elements comprising a right-angled triangular frame consisting of a vertical member, a horizontal member extending from near the upper end of the vertical member, an inclined member extending upwardly from near the lower end of the vertical member to the end of the horizontal member furthest from said vertical member, and a locating and locking yoke at the end of said horizontal and inclined members, said yoke having an upper part and a lower part both fixed as to vertical movement relative to the horizontal member, the upper part having an aperture of a diameter slightly greater than the diameter of said vertical member, the lower member including means to hookedly engage the vertical member of an adjacent scaffolding element, the space between the upper and lower parts being slightly greater than the distance between the end of said vertical member and the underside of the horizontal member.
Claim 11
Dependent Claim 39 words
The scaffold of claim 8, wherein said lower part includes a slot extending generally transversely to the direction of the vertical member, and being slightly wider than the diameter of the vertical member, for hookedly engaging said vertical member.

References Cited (Backward Citations)

US1553800A Cited
US3245188A Cited
US3156329A Cited
US3490189A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-07-25 1981-01-24 1981-07-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-07-25 1985-01-24 1985-07-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-07-25 1989-01-24 1989-07-26 $7700.00 Window Closed / Lapsed

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