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US3638814A Expired / Lapsed US ⏱️ 0.0 years remaining

Support stand

Assignee: Individual
•
Filing: 1970-06-18
•
Granted: 1972-02-01
•
Expires: 1990-06-18
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Abstract

Abstract The disclosure relates to a knockdown support stand having a plurality of upright members adapted to interlockingly engage a plurality of interconnecting crossmembers. The ends of each crossmember is notched and yieldingly retained within an aperture in the upright member. The upright member is fabricated from pliable tubular material and is provided with a longitudinal slot to permit flexibility in the diametrical direction. The tubular member is molded to resiliently bear against the notched portion of the crossmember, much in the manner of a spring clip, and will thus firmly hold the crossmember in position. The tubular member can further be urged radially inward to facilitate entry or removal of the crossmember into or out of the aperture during assembly or disassembly of the support stand. An extension member is provided for attachment to one or more of the upright members in order to anchor the support stand to the surrounding surface. The notched portions of the crossmember and the apertures in the upright members are shown in several modified embodiments and furthermore the general configuration of the support stand as shown may be rectangular, circular, or triangular.

Inventors

  • 👤 Mae H Lowery

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 16:40
CPC Classifications
A; A47; A47B; A47B47/00; A47B47/02; A47B47/021; A47B47/027; A47F; A47F5/00; A47F5/10; A47F5/13; Y; Y10; Y10T; Y10T403/00; Y10T403/33

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 97 words
A knockdown support stand comprising a plurality of upright pliable tubular members defining registered apertures therein, a plurality of interconnecting crossmembers, means for releasably interlocking the crossmembers within said apertures, the crossmembers defining a notched portion at either end thereof where the notched portion includes two opposite opposing substantially upright walls defining a notch, and a longitudinal slot defined with the upright member, said slot providing for diametrical stability in the upright members, said upright member further being adapted to resiliently bear against the notched portion of the crossmember to interlockingly engage the crossmember within the aperture.
Claim 2
Dependent Claim 97 words
A knockdown support stand comprising a plurality of upright pliable tubular members defining registered apertures therein, a plurality of interconnecting crossmembers, means for releasably interlocking the crossmembers within said apertures, the crossmembers defining a notched portion at either end thereof where the notched portion includes two opposite opposing substantially upright walls defining a notch, and a longitudinal slot defined with the upright member, said slot providing for diametrical stability in the upright members, said upright member further being adapted to resiliently bear against the notched portion of the crossmember to interlockingly engage the crossmember within the aperture.
Claim 3
Dependent Claim 28 words
A knockdown support stand as claimed in claim 1, further including an extension member fixed to the upright member for anchoring the support stand to the surrounding surface.
Claim 4
Dependent Claim 40 words
A knockdown support stand as claimed in claim 2, wherein the extension member and upright member each define registered openings, and further including a bifurcated pin positioned through said aligned openings for securing the extension member to the upright member.
Claim 5
Dependent Claim 28 words
A knockdown support stand as claimed in claim 3, further including a cap member adapted to be press fit within an open end of said tubular upright member.
Claim 6
Dependent Claim 29 words
A knockdown support stand as claimed in claim 4, wherein there are four upright members and the interconnecting crossmembers defining the support stand conform to a generally rectangular configuration.
Claim 7
Dependent Claim 29 words
A knockdown support stand as claimed in claim 4, wherein there are three upright members and the interconnecting crossmembers defining the support stand conform to a generally triangular configuration.
Claim 8
Dependent Claim 28 words
A knockdown support stand as claimed in claim 4, wherein there are three upright members and the interconnecting crossmembers defining the support stand conform a generally circular configuration.
Claim 9
Dependent Claim 28 words
A knockdown support stand as claimed in claim 4, wherein the apertures in the upright member define a keyway to securely seat the notched portion of the crossmember.

References Cited (Backward Citations)

US421383A Cited
US1795060A Cited
US1598727A Cited
US2793759A Cited
US2969155A Cited
US3204779A Cited
US3252433A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-01-31 1975-08-02 1976-02-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-01-31 1979-08-02 1980-02-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-01-31 1983-08-02 1984-02-01 $7700.00 Window Closed / Lapsed

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