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US3944308A Expired / Lapsed US ⏱️ 0.0 years remaining

Frame for supporting articles

Assignee: Expo Nord AB
•
Filing: 1974-07-23
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Granted: 1976-03-16
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Expires: 1994-07-23
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Abstract

Abstract A frame for supporting articles comprises a plurality of bars which have angularly bent longitudinal portions and make angles with each other, some of the longitudinal portions extending in contiguous relation and being locked together by locking means engaging the channels in the bars.

Inventors

  • 👤 Eric Sigfrid Persson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-10 02:30
CPC Classifications
F; F16; F16B; F16B12/00; F16B12/40; A; A47; A47B; A47B13/00; A47B13/02; A47B13/06; A47B17/00; A47B17/02; A47B47/00; A47B47/02; A47B47/03; A47B91/00; A47B91/005; A47C; A47C5/00; A47C5/04; F16B12/10; A47B2200/00; A47B2200/0011; A47B2200/002; A47B2200/0021; A47B2200/0022

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 151 words
A frame for supporting articles, comprising a plurality of bars forming a framework of open construction, means on said bars defining a channel which extends throughout the length of said bars and has a constricted channel side opening which opens into a side surface of said bars, said bars having angularly bent longitudinal portions and making angles with each other, some of said portions extending in touching contiguous relation, each pair of the contiguously extending bar portions turning their channel side openings towards one another, and locking means detachably introduced into the channels of each pair of the contiguously extending bar portions and engaging therein under locking action, said locking means extending through the channel side openings from channel to channel, whereby the frame may be readily assembled and disassembled and when assembled presents an appearance in which the locking means are not visible with these side openings in side-by-side alignment.
Claim 2
Dependent Claim 151 words
A frame for supporting articles, comprising a plurality of bars forming a framework of open construction, means on said bars defining a channel which extends throughout the length of said bars and has a constricted channel side opening which opens into a side surface of said bars, said bars having angularly bent longitudinal portions and making angles with each other, some of said portions extending in touching contiguous relation, each pair of the contiguously extending bar portions turning their channel side openings towards one another, and locking means detachably introduced into the channels of each pair of the contiguously extending bar portions and engaging therein under locking action, said locking means extending through the channel side openings from channel to channel, whereby the frame may be readily assembled and disassembled and when assembled presents an appearance in which the locking means are not visible with these side openings in side-by-side alignment.
Claim 3
Dependent Claim 51 words
A frame according to claim 1, wherein at least some of said bars are bent into the shape of a U having a web portion and two limb end portions, said limb end portions being interconnected in pairs by the intermediary of said locking means for the formation of frame legs.
Claim 4
Dependent Claim 43 words
A frame according to claim 2, wherein one of said bars is bent into the shape of a ring which extends along said web portions of said U-shaped bars and is interconnected with said U-shaped bars by the intermediary of said locking means.
Claim 5
Dependent Claim 24 words
A frame according to claim 2, wherein the channel formed in the web of the U-shaped bar engages slidable retaining means for sliding leaves.
Claim 6
Dependent Claim 19 words
A frame according to claim 2, wherein the webs of two interconnected U-shaped bars are arranged at different levels.
Claim 7
Dependent Claim 37 words
A frame according to claim 2, wherein the two interconnected limbs of two U-shaped bars in the frame together constitute a framing or bracket for an appliance, such as a lighting apparatus, telephone support or the like.
Claim 8
Dependent Claim 113 words
A frame according to claim 1, wherein at least some of said bars are bent into the shape of a U having a web portion and two limb end portions, said limb end portions being interconnected in pairs by the intermediary of said locking means for the formation of frame legs, each U-shaped bar having a side surface which is at right angles to the plane of the U-shaped bar and faces outwardly therefrom, said side surface adjoining on one side a bar side surface projecting therefrom approximately at right angles away from said U-shaped bar and adjoining on the other side the bar side surface in which opens the channel side opening.
Claim 9
Dependent Claim 72 words
A frame according to claim 1, wherein at least some of said bars are bent into the shape of a U having a web portion and two limb end portions, said limb end portions being interconnected in pairs by the intermediary of said locking means for the formation of frame legs, means on said U-shaped bars defining a groove which opens into a bar side surface facing inwardly of the U-shaped bar.
Claim 10
Dependent Claim 69 words
A frame according to claim 1, wherein said bars are individually bent into the shape of a U having a web portion and two limb end portions, the web portions of said U-shaped bars being interconnected by the intermediary of said locking means for the formation of a pedestal which can be placed on a base, supported by the limb end portions projecting from one end of the pedestal.
Claim 11
Dependent Claim 51 words
A frame according to claim 1, wherein said bars are individually bent into L-shape and said bars are interconnected at their one L-arm by the intermediary of said locking means for the formation of a pedestal from one end of which extend the other L-arms of said bars in different directions.

References Cited (Backward Citations)

US2474318A Cited
US3059983A Cited
FR1255448A Cited
US3233942A Cited
FR1513248A Cited
US3439466A Cited
US3443530A Cited
US3533586A Cited
US3645036A Cited
DK92181A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-03-16 1979-09-15 1980-03-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-03-16 1983-09-15 1984-03-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-03-16 1987-09-15 1988-03-16 $7700.00 Window Closed / Lapsed

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