Patent US3813111A successfully refreshed from Google Patents.
US3813111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bumper construction for shopping cart
Assignee: ROBLIN IND INC US
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Filing: 1972-08-16
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Granted: 1974-05-28
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Expires: 1992-08-16
Abstract
Abstract A bumper system for a nestable shopping cart of the type having a wheeled lower frame, members upstanding from the lower frame near the rear end thereof, an upper frame carried by the upstanding members, a handle above and near the rear of the upper frame and a receptacle on the upper frame, the receptacle including a forward portion upwardly and rearwardly pivotable for nesting so that its bottom wall faces forwardly in opposition to the handle of a further similar cart nested in front thereof. The bumper system includes a transverse rear bumper member behind the rearmost of the upstanding members. A front bumper member is spaced forwardly of the upstanding members and has a pair of upstanding legs in forwardly spaced, overlapping relation with the rear bumper member. The spacing of the legs from the rear bumper member exceeds the horizontal spacing of the cart handle from the forwardly facing bottom wall of the receptacle portion positioned for nesting, so that nesting movement of the cart with respect to a further similar cart positioned in front thereof is stopped by contact between the opposed bumper members of the two carts and contact between the handle of the forwardly positioned cart with the forwardly facing bottom wall of the rearwardly positioned cart is prevented so as to avoid damage to such handle.
Inventors
- 👤 V Ruger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:02
CPC Classifications
B; B62; B62B; B62B5/00; B62B5/0006; B62B5/0009; B62B3/00; B62B3/14; B62B3/18; B62B3/182; B62B3/1476
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
273 words
In a nestable shopping cart of the type having a wheeled lower frame, members upstanding from said Frame near the rear end thereof, an upper frame carried by said upstanding members, a fixed manually engageable handle above and near the rear of said upper frame and a receptacle on said upper frame and including a forward portion upwardly and rearwardly pivotable for nesting to cause the bottom wall of said forward receptacle portion to face forwardly in horizontal opposition to the handle of a further similar cart nested in front thereof, the improvement positively preventing contact between said receptacle with the handle of said further cart and comprising in combination: a fixed rear bumper member behind the rearmost of said upstanding members and extending transversely thereof substantially the width of said cart, said rear bumper member being disposed vertically between said lower and upper frames; a fixed front bumper member spaced forwardly of and supported from said upstanding members and having a pair of upstanding legs, said legs each having a portion forwardly spaced from and extending above and below said rear bumper member, said spacing of said legs and rear bumper member exceeding the horizontal spacing of the cart handle from forwardly facing bottom wall of said receptacle portion positioned for nesting; whereby upon nesting of said cart with said further similar cart, the front bumper member of said cart will contact the rear bumper member of said further similar cart to positively prevent further nesting movement while the forwardly facing bottom wall of said cart remains spaced rearwardly from and out of contact with the handle of said further similar cart.
Claim 2
Dependent Claim
273 words
In a nestable shopping cart of the type having a wheeled lower frame, members upstanding from said Frame near the rear end thereof, an upper frame carried by said upstanding members, a fixed manually engageable handle above and near the rear of said upper frame and a receptacle on said upper frame and including a forward portion upwardly and rearwardly pivotable for nesting to cause the bottom wall of said forward receptacle portion to face forwardly in horizontal opposition to the handle of a further similar cart nested in front thereof, the improvement positively preventing contact between said receptacle with the handle of said further cart and comprising in combination: a fixed rear bumper member behind the rearmost of said upstanding members and extending transversely thereof substantially the width of said cart, said rear bumper member being disposed vertically between said lower and upper frames; a fixed front bumper member spaced forwardly of and supported from said upstanding members and having a pair of upstanding legs, said legs each having a portion forwardly spaced from and extending above and below said rear bumper member, said spacing of said legs and rear bumper member exceeding the horizontal spacing of the cart handle from forwardly facing bottom wall of said receptacle portion positioned for nesting; whereby upon nesting of said cart with said further similar cart, the front bumper member of said cart will contact the rear bumper member of said further similar cart to positively prevent further nesting movement while the forwardly facing bottom wall of said cart remains spaced rearwardly from and out of contact with the handle of said further similar cart.
Claim 3
Dependent Claim
109 words
The apparatus of claim 1 including an upwardly opening secondary receptacle fixed to and extending between said upstanding members for connecting same together intermediate said lower and upper frames, the secondary receptacle including forward and rearward walls respectively including said legs and said rear bumper member, said secondary receptacle including a bottom wall, said bottom wall being spaced below said rear bumper member and having a forward edge disposed at the lower ends of said legs, said legs each having a rearward extension underlying said bottom wall of said secondary receptacle, the upper ends of said legs being connected by a transverse bight portion above said rear bumper member.
Claim 4
Dependent Claim
31 words
The apparatus of claim 2 in which said legs, bight portion, extensions and rear bumper member are of steel rod and said walls of said secondary receptacle are of wire mesh.
Claim 5
Dependent Claim
155 words
The apparatus of claim 2 in which said upstanding members comprise a pair of transversely spaced rear upstanding members and a pair of transversely spaced forward upstanding members forwardly spaced from said rear upstanding members, said secondary receptacle having side walls inboard of said upstanding members and extending from said rear upstanding members beyond said forward upstanding members, said rear bumper member being fixed to the rear face of said rear upstanding members, and including a support rod fixed therebelow to the front face of said rear upstanding members and to the rear ends of said extensions, a generally U-shaped perimeter rod extending forwardly from said rear bumper member adjacent each end thereof along the top of said side walls to the front end of said secondary receptacle and transversely along said front end between and beyond intermediate portions of said legs for defining therewith the location of a front wall of said secondary receptacle.
Claim 6
Dependent Claim
60 words
The apparatus of claim 1 in which said forward bumper member further includes a pair of transversely spaced, substantially horizontal extensions respectively connecting to and extending rearwardly from the lower end of said upstanding legs and including transverse means spaced below said rear bumper member for fixing the rear ends of said extensions to said upstanding members of said cart.
Claim 7
Dependent Claim
57 words
The apparatus of claim 5 in which said front bumper member further includes a transverse bight extending between and connecting The upper ends of said legs above the rod of said rear bumper member, said bight, legs and extensions being integral and providing said front bumper member with an inverted, transversely disposed U-shape with ends bent rearwardly.
Claim 8
Dependent Claim
59 words
The apparatus of claim 6 in which said upstanding members of said cart comprise spaced forward and rearward pairs of upstanding cart members and said transverse means include transverse rods respectively spanning said pairs and fixed thereto below the level of said rear bumper member, said transverse rods being fixed to and supporting said extensions at spaced points thereon.
Claim 9
Dependent Claim
32 words
The apparatus of claim 7 including a substantially horizontal U-shaped brace having arms extending forwardly from said rear bumper member and a transverse central portion backing said legs intermediate the ends thereof.
Claim 10
Dependent Claim
34 words
The apparatus of claim 8 in which said front and rear bumper members, transverse rods, brace and upstanding members are fixedly welded together to define a rigid, unitary bumper system integrated with said cart.
Claim 11
Dependent Claim
32 words
The apparatus of claim 8 including a substantially rectalinear, open-top secondary receptacle and in which said front and rear bumper members support the front, bottom and rear walls of said secondary receptacle.
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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) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |