US3920260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cart shelf supporting structure
Assignee: COLSON Co
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Filing: 1975-02-12
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Granted: 1975-11-18
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Expires: 1995-02-12
Abstract
Abstract A cart having a wheeled base defining spaced uprights provided for adjustably supporting the shelf member on the uprights for selectively defining a horizontal support shelf and a vertical side retainer wall. The cart includes structure for slidably and pivotably mounting the shelf member to one or more of the uprights to effect the desired selective positioning.
Inventors
- 👤 Joe R Downing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:28
CPC Classifications
B; B62; B62B; B62B3/00; B62B3/002; B62B3/005; B62B3/006; B62B3/02; B62B2202/00; B62B2202/66; B62B2206/00; B62B2206/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
170 words
In a cart having a wheeled base defining spaced uprights at the sides of the cart, and a shelf member, structure for adjustably supporting the shelf member on said uprights for selectively defining a horizontal support shelf and a vertical side retainer wall comprising: means defining slide supports; means defining elongated slides on the shelf member extending in a width direction of the shelf member and slidable one each through said slide supports; means for pivotally mounting said slide supports one each to the uprights at one side of the cart for pivoting about a horizontal axis perpendicular to the side-to-side direction of the cart whereby the shelf member may be pivoted about said axis and translated perpendicular to said axis; and means for retaining the shelf member selectively in a horizontal position across the cart from side-to-side thereof to define a horizontal support shelf across the cart, or in a vertical position at said one side of the cart to define a vertical retainer wall along said one side.
Claim 2
Dependent Claim
170 words
In a cart having a wheeled base defining spaced uprights at the sides of the cart, and a shelf member, structure for adjustably supporting the shelf member on said uprights for selectively defining a horizontal support shelf and a vertical side retainer wall comprising: means defining slide supports; means defining elongated slides on the shelf member extending in a width direction of the shelf member and slidable one each through said slide supports; means for pivotally mounting said slide supports one each to the uprights at one side of the cart for pivoting about a horizontal axis perpendicular to the side-to-side direction of the cart whereby the shelf member may be pivoted about said axis and translated perpendicular to said axis; and means for retaining the shelf member selectively in a horizontal position across the cart from side-to-side thereof to define a horizontal support shelf across the cart, or in a vertical position at said one side of the cart to define a vertical retainer wall along said one side.
Claim 3
Dependent Claim
32 words
The cart shelf supporting structure of claim 1 wherein said retaining means comprises means for retaining the shelf member in a plurality of vertical positions at said one side of the cart.
Claim 4
Dependent Claim
73 words
The cart shelf supporting structure of claim 1 wherein said retaining means comprises means for retaining the shelf member in a first vertical position at the bottom of the cart for retaining objects in the cart against movement outwardly therefrom through said one side, and in a second vertical position spaced above the bottom of the cart for permitting movement of objects through said one side of the cart at said bottom thereof.
Claim 5
Dependent Claim
40 words
The cart shelf supporting structure of claim 1 wherein said retaining means comprises means for retaining the shelf member in a first position extending downwardly from said slide supports and in a second position extending upwardly from said slide supports.
Claim 6
Dependent Claim
51 words
The cart shelf supporting structure of claim 1 wherein said uprights at said one side of the cart are disposed at the front and rear ends of the cart, respectively, said shelf member extending substantially from side-to-side and from end to end of the cart in said horizontal support shelf disposition.
Claim 7
Dependent Claim
22 words
The cart shelf supporting structure of claim 1 wherein said shelf member has a width approximately one-half the height of said uprights.
Claim 8
Dependent Claim
136 words
The cart shelf supporting structure of claim 1 wherein said retaining means comprises means for retaining the shelf member in a first vertical position at the bottom of the cart for retaining objects in the cart against movement outwardly therefrom through said one side, and in a second vertical position spaced above the bottom of the cart for permitting movement of objects through said one side of the cart at said bottom thereof, said retaining means including a bracket on one side portion of said shelf member and cooperating retaining elements at bottom and top portions of said uprights at said one side of the cart adapted to retain the shelf member in a vertical position against pivoting about said axis when the shelf member is disposed in either of said first or second vertical positions.
Claim 9
Dependent Claim
27 words
The cart shelf supporting structure of claim 1 wherein said slides comprise end wires on said shelf member extending substantially from side edge to side edge thereof.
Claim 10
Dependent Claim
23 words
The cart shelf supporting structure of claim 1 wherein said slide supports comprise means defining a througH opening slidably receiving said elongated slides.
Claim 11
Dependent Claim
38 words
The cart shelf supporting structure of claim 1 wherein said retaining means include support members carried on the uprights at the opposite side of the cart for supporting the shelf member removably in the horizontal support shelf disposition.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |