Patent US3589746A successfully refreshed from Google Patents.
US3589746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire shelf cart
Assignee: INTERNATIONAL INDUSTRIES Inc 5500 MUDDY CREEK RD CINCINNATI OH A IL CORP
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Filing: 1969-10-16
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Granted: 1971-06-29
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Expires: 1989-10-16
Abstract
Abstract A wire shelf cart equipped with casters and having a plurality of horizontal wire shelves joined at opposite ends by upstanding wire frames, the shelves and end frames defining channels or recesses in which L-shaped mounting clips are received for rigidly interlocking such frames and shelves.
Inventors
- 👤 Leslie R Inglis
- 👤 Howard N Bollinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:31
CPC Classifications
B; B62; B62B; B62B3/00; B62B3/002; A; A47; A47B; A47B57/00; A47B57/06; A47B57/12; B62B3/006; B62B2301/00; B62B2301/05
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
150 words
A cart having a plurality of horizontal shelves and a pair of vertical end frames, each of said shelves having a pair of parallel side channel members defining inwardly facing horizontal channels and having openings extending horizontally through said members adjacent the ends thereof, said end frames having upstanding frame portions disposed laterally outwardly of said channel members, each frame portion on each side of said shelves having vertical elements and horizontal elements defining apertures communicating with said openings of said channel members, and L-shaped mounting clips rigidly interconnecting said shelves and said end frames, each clip extending through said opening and said aperture and having a horizontal leg received in said horizontal channel, each clip also having a vertical leg disposed in one of said apertures between said vertical elements and tightly engaging said vertical elements to hold said end frames and shelves at right angles to each other.
Claim 2
Dependent Claim
150 words
A cart having a plurality of horizontal shelves and a pair of vertical end frames, each of said shelves having a pair of parallel side channel members defining inwardly facing horizontal channels and having openings extending horizontally through said members adjacent the ends thereof, said end frames having upstanding frame portions disposed laterally outwardly of said channel members, each frame portion on each side of said shelves having vertical elements and horizontal elements defining apertures communicating with said openings of said channel members, and L-shaped mounting clips rigidly interconnecting said shelves and said end frames, each clip extending through said opening and said aperture and having a horizontal leg received in said horizontal channel, each clip also having a vertical leg disposed in one of said apertures between said vertical elements and tightly engaging said vertical elements to hold said end frames and shelves at right angles to each other.
Claim 3
Dependent Claim
33 words
The structure of claim 1 in which each clip is provided with means engaging one of said vertical elements for locking said shelves at said selected vertical positions relative to said end frames.
Claim 4
Dependent Claim
36 words
The structure of claim 1 in which said vertical leg of each said clip is provided with a pair of outwardly projecting ear portions, said ear portions being in tight frictional engagement with said vertical elements.
Claim 5
Dependent Claim
38 words
The structure of claim 1 in which the lowermost of said plurality of shelves comprises the base portion of said cart, and caster assemblies secured to said lowermost shelf and to the L-shaped clips for said lowermost shelf.
Claim 6
Dependent Claim
18 words
The structure of claim 1 in which said vertical elements of said end frames are formed of wire.
Claim 7
Dependent Claim
18 words
The structure of claim 5 in which said horizontal elements of said end frames are formed of wire.
Claim 8
Dependent Claim
29 words
The structure of claim 6 in which means are provided by said clip and said frame member for locking said clip against vertical sliding movement along said vertical elements.
Claim 9
Dependent Claim
32 words
The structure of claim 7 in which said means comprises a horizontal frame member secured to said vertical elements, and a hook portion provided by said clip and engaging said horizontal element.
Claim 10
Dependent Claim
16 words
The structure of claim 8 in which said vertical and horizontal elements are formed of wire.
Claim 11
Dependent Claim
124 words
In combination, a shelf having a horizontal side member of generally C-shaped cross section having a vertical wall portion and upper and lower horizontal wall portions formed integrally therewith and defining a horizontal channel, an upstanding frame member engaging the surface of said vertical wall portion opposite from said channel, said frame member including a pair of spaced and rigidly interconnected vertical elements, said vertical wall portion of said side member having an opening communicating with the space between said vertical elements, and an L-shaped mounting clip extending through said opening and rigidly and frictionally securing said shelf and frame member together, said clip having a horizontal leg snugly received in said channel and having a vertical leg tightly received between said vertical elements.
Claim 12
Dependent Claim
124 words
In combination, a shelf having a horizontal side member of generally C-shaped cross section having a vertical wall portion and upper and lower horizontal wall portions formed integrally therewith and defining a horizontal channel, an upstanding frame member engaging the surface of said vertical wall portion opposite from said channel, said frame member including a pair of spaced and rigidly interconnected vertical elements, said vertical wall portion of said side member having an opening communicating with the space between said vertical elements, and an L-shaped mounting clip extending through said opening and rigidly and frictionally securing said shelf and frame member together, said clip having a horizontal leg snugly received in said channel and having a vertical leg tightly received between said vertical elements.
Claim 13
Dependent Claim
37 words
The structure of claim 10 in which said vertical leg of said clip is provided with a pair of outwardly projecting ear portions formed integrally therewith and disPosed between said vertical elements in tight frictional engagement therewith.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |