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US3612291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cantilever rack with truss uprights
Assignee: PALTIER CORP
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Filing: 1969-03-19
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Granted: 1971-10-12
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Expires: 1989-03-19
Abstract
Abstract A cantilever rack having upright columns formed of a truss construction and being tapered upwardly to provide a structure of maximum strength and stability with a minimum of material. The columns each include a pair of generally C-shaped channels which are inclined toward each other to provide a wider column base than top and are interconnected by horizontal and diagonal truss members. The upright columns are secured to the rack base by tension fasteners which incur only minimal shearing stresses.
Inventors
- 👤 Leroy F Skubic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:24
CPC Classifications
A; A47; A47B; A47B47/00; A47B47/02; A47B47/021; A47B47/028; A47B47/022
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
253 words
A cantilever rack comprising a base, a plurality of upright columns supported by said base in spaced side-by-side intervals, means securing said columns to said base, said columns each having a truss construction consisting of a pair of opposed individual uninterrupted channels interconnected by alternating horizontal and diagonal truss members, the lower ends of alternate diagonal truss members of each column being secured to the same channel of that column and the lower ends of the other diagonal truss members being secured to the other channel of said column, said channels each having a pair of parallel legs joined by a web, said channels of each pair being inclined toward each other to form an upwardly tapered column having a base wider than the top when viewed from the side, connecting rods secured to corresponding horizontal truss members of adjacent columns for preventing relative lateral movement of said columns, diagonal tension rods joining said connecting rods, a load-supporting arm secured to and vertically positionable on one side channel of each column, said load-supporting arm having a bracket shaped to conform closely to the outer surface of one of said column channels and an arm members extending outwardly from said bracket, said bracket having axially aligned appertures, said channel legs upon which said arm is positionable each having aligned vertically spaced appertures, and a pin for insertion through said bracket appertures and selected channel appertures to selectively position said arm at a predetermined elevation on said column with said bracket closely engaging said channel.
Claim 2
Dependent Claim
253 words
A cantilever rack comprising a base, a plurality of upright columns supported by said base in spaced side-by-side intervals, means securing said columns to said base, said columns each having a truss construction consisting of a pair of opposed individual uninterrupted channels interconnected by alternating horizontal and diagonal truss members, the lower ends of alternate diagonal truss members of each column being secured to the same channel of that column and the lower ends of the other diagonal truss members being secured to the other channel of said column, said channels each having a pair of parallel legs joined by a web, said channels of each pair being inclined toward each other to form an upwardly tapered column having a base wider than the top when viewed from the side, connecting rods secured to corresponding horizontal truss members of adjacent columns for preventing relative lateral movement of said columns, diagonal tension rods joining said connecting rods, a load-supporting arm secured to and vertically positionable on one side channel of each column, said load-supporting arm having a bracket shaped to conform closely to the outer surface of one of said column channels and an arm members extending outwardly from said bracket, said bracket having axially aligned appertures, said channel legs upon which said arm is positionable each having aligned vertically spaced appertures, and a pin for insertion through said bracket appertures and selected channel appertures to selectively position said arm at a predetermined elevation on said column with said bracket closely engaging said channel.
Claim 3
Dependent Claim
47 words
The cantilever rack of claim 1 in which said channel legs terminate with flanges which define a longitudinal opening to the interior of said channel which is narrower than the width of said channel, and said truss members connecting said column channels are secured to said flanges.
Claim 4
Dependent Claim
85 words
The cantilever rack of claim 1 in which a reinforcing rod is disposed adjacent the outside surface of each channel web within said concave recess, said recess and reinforcing rod having relatively small cross-sectional dimensions in comparison to said channel so as not to obstruct the insertion of said shelf-securing pins through said channel legs, and said rod being contained in said recess below the outer surface of the web to permit mounting of said arm bracket on said column channel immediately adjacent said web.
Claim 5
Dependent Claim
65 words
The cantilever rack of claim 1 in which a reinforcing rod is disposed within the concave recess of said column channel below the outer surface of said web, a flat reinforcing plate secured to the outer channel web surface and extending longitudinally along said channel, and said arm bracket being shaped to conform closely to the outer surface of said reinforcing plate and column channel.
Claim 6
Dependent Claim
102 words
The cantilever rack of claim 1 in which said means for securing each said column to said base includes sleeves mounted near the bottom of said column channel, said base having sleeves at corresponding positions below said column sleeves, a mounting plate connecting the lower ends of the channels of each column and being formed with notches which receive the upper portion of said base sleeves to prevent relative lateral movement of said column relative to said base, and tension fastening means securing said column sleeves and corresponding base sleeves to prevent vertical movement of said column with respect to said base.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |