Patent US4155588A successfully refreshed from Google Patents.
Patent US4862909A successfully refreshed from Google Patents.
US4862909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drainage pan for liquid waste containers
Assignee: Individual
•
Filing: 1989-03-03
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Granted: 1989-09-05
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Expires: 2009-03-03
Abstract
Abstract A drainage pan for liquid waste containers which includes a Z-bar suction pump assembled with the wall thereof for draining the liquid waste leaked from a liquid waste container, an overflow drain pipe disposed at the upper portion of the wall thereof for draining liquid waste overflow leaked from the liquid waste container, and a plurality of gradually declining supports disposed on the bottom thereof for supporting a liquid waste container whereby the drainage pan prevents the liquid waste from contaminating humans or the ground.
Inventors
- 👤 Il Y. Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:10
CPC Classifications
F; F04; F04F; F04F10/00; F04B; F04B43/00; F04B43/08; Y; Y10; Y10T; Y10T137/00; Y10T137/2713; Y10T137/2842; Y10T137/2877; Y10T137/2897; Y10T137/5762
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
152 words
A drainage pan assembly for a liquid waste container which comprises a drainage pan body including a bottom and a wall for receiving said liquid waste container, said wall being provided with a receptacle extending therefrom, a manually operated suction pump connected to a suction pipe and a drain pipe connected to said suction pipe, said suction pipe being removably insertable within said receptacle so that it extends into close proximity to the bottom of the drainage pan, an aperture disposed in the top wall portion of said drainage pan body, and an overflow conduit connected to said aperture and said drain pipe so that said overflow conduit provides continuous drainage through said aperture exterior of the drainage pan whether or not the pump is operative, wherein said drainage pan collects liquid waste which leaks from the liquid waste container and said liquid waste is easily removed by operating the suction pump.
Claim 2
Dependent Claim
152 words
A drainage pan assembly for a liquid waste container which comprises a drainage pan body including a bottom and a wall for receiving said liquid waste container, said wall being provided with a receptacle extending therefrom, a manually operated suction pump connected to a suction pipe and a drain pipe connected to said suction pipe, said suction pipe being removably insertable within said receptacle so that it extends into close proximity to the bottom of the drainage pan, an aperture disposed in the top wall portion of said drainage pan body, and an overflow conduit connected to said aperture and said drain pipe so that said overflow conduit provides continuous drainage through said aperture exterior of the drainage pan whether or not the pump is operative, wherein said drainage pan collects liquid waste which leaks from the liquid waste container and said liquid waste is easily removed by operating the suction pump.
Claim 3
Dependent Claim
27 words
The drainage pan of claim 1, wherein the receptacle contains an aperture and the suction pipe connected to the suction pump is slidably engaged in said aperture.
Claim 4
Dependent Claim
31 words
The drainage pan of claim 2, wherein the suction pipe has a diagonally cut end portion to facilitate the complete removal of the liquid waste collected in the drainage pan body.
Claim 5
Dependent Claim
20 words
The drainage pan of claim 1, wherein the suction pump has a push plate disposed thereon for said manual operation.
Claim 6
Dependent Claim
30 words
The drainage pan of claim 1, wherein the drain pipe and the overflow conduit each have a flexible portion, whereby the position of the drain pipe can be readily adjusted.
Claim 7
Dependent Claim
20 words
The drainage pan of claim 1, wherein the receptacle extends from the wall into the interior of the drainage pan.
Claim 8
Dependent Claim
28 words
The drainage pan of claim 1 wherein a plurality of inclined supports are disposed in the bottom of the drain pan body for supporting the liquid waste container.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1992-09-04 | 1993-03-06 | 1993-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-04 | 1997-03-06 | 1997-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-04 | 2001-03-06 | 2001-09-05 | $7700.00 | Window Closed / Lapsed |