US3963226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refuse container edge protector
Assignee: Individual
•
Filing: 1974-11-11
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Granted: 1976-06-15
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Expires: 1994-11-11
Abstract
Abstract A protector for the bottom edge of a refuse can comprising a band of elastomer material formed into an annulus which is sleeved over the bottom chime of a refuse can. The band is molded about a steel coil spring which forms an annular passage within the band. The passage communicates with partially closed radial ports formed band. The spring is adapted to underlie the chime and by the coils of the spring deflecting axially serves as a shock absorbing means when the container is dropped. Also, air is compressed within the passage and spurts through the leaky ports. This augments the action of the spring and absorbs the rim crushing blows.
Inventors
- 👤 John J. Jankowski, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:42
CPC Classifications
B; B65; B65F; B65F1/00; B65F1/02; B65D; B65D25/00; B65D25/20; B65D25/24; B65F1/14; Y; Y10; Y10S; Y10S248/00; Y10S248/907
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
68 words
An edge protector for a container comprising an elastomer annulus adapted to fit about the lower edge of the container and having an air spring portion and a metal spring associated therewith, said springs disposed to operate conjunctively to absorb drop shocks imposed on the container, and said air spring comprising a tubular chamber formed in the annulus and partially-closed ports communicating the air chamber with the atmosphere.
Claim 2
Dependent Claim
68 words
An edge protector for a container comprising an elastomer annulus adapted to fit about the lower edge of the container and having an air spring portion and a metal spring associated therewith, said springs disposed to operate conjunctively to absorb drop shocks imposed on the container, and said air spring comprising a tubular chamber formed in the annulus and partially-closed ports communicating the air chamber with the atmosphere.
Claim 3
Dependent Claim
20 words
The invention according to claim 1 and said metal spring comprising a coil spring oriented axially circumferentially of the annulus.
Claim 4
Dependent Claim
31 words
The invention according to claim 1 and said air spring comprising an annular chamber concentric within said annulus and said metal spring comprising a helical coil within said chamber concentric therewith.
Claim 5
Dependent Claim
32 words
The invention according to claim 1 and said annulus having a bottom body portion molded about said metal spring and having a pair of upstanding annular bands defining a chime-admitting slot therein.
Claim 6
Dependent Claim
35 words
The invention according to claim 4 and said annular bands being concentrically arranged and one of the bands comprising an inner band terminating in an upper edge, having thereon a radially inwardly extending bottom-panel-engaging flange.
Claim 7
Dependent Claim
39 words
The invention according to claim 1 and said air spring comprising a tubular annular chamber formed in said annulus concentric therewith, and said metal spring being disposed in supporting relation to the said air chamber to resist collapse thereof.
Claim 8
Dependent Claim
19 words
The invention according to claim 6 and said ports comprising air metering means communicating said chamber with the exterior.
Claim 9
Dependent Claim
23 words
The invention according to claim 7 and said metal spring comprising a plurality of closely spaced helical coils embedded into said elastomer annulus.
Claim 10
Dependent Claim
28 words
The invention according to claim 1 and said metal spring comprising clip means, each clip means being U-shaped and having opposing legs clamping said air spring portion therebetween.
Claim 11
Dependent Claim
75 words
An edge protector for a container bottom comprising a bottom edge portion, an elastomeric element having means for attachment to said edge portion and including an air spring formed in said element and combined exhaust and inlet means for air extending from said air spring to the atmosphere, and helical spring means arranged as a hoop within said air spring and having hook ends hooked to each other for holding said protector in assembled position.
Claim 12
Dependent Claim
75 words
An edge protector for a container bottom comprising a bottom edge portion, an elastomeric element having means for attachment to said edge portion and including an air spring formed in said element and combined exhaust and inlet means for air extending from said air spring to the atmosphere, and helical spring means arranged as a hoop within said air spring and having hook ends hooked to each other for holding said protector in assembled position.
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) | 1979-06-15 | 1979-12-15 | 1980-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-15 | 1983-12-15 | 1984-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-15 | 1987-12-15 | 1988-06-15 | $7700.00 | Window Closed / Lapsed |