US5033637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for storing waste fluids
Assignee: U-Fuel Inc
•
Filing: 1990-08-22
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Granted: 1991-07-23
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Expires: 2010-08-22
Abstract
Abstract A system for storing waste fluids such as engine oil in bulk, which can be situated at a service station or other centralized waste storage facility. The system is charactrized by a relatively large tank having an access opening which is surrounded by a receptacle. A removable grate is provided within the receptacle over the access opening, so that articles such as oil filters may be placed in the receptacle for draining. The tank is supported relative to the ground or other flat surface by a pedestal. The system is an integral unit which may be deployed by a crane or other lifting mechanism to a desired location.
Inventors
- 👤 R. Michael Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:16
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/78; B67C; B67C11/00; B67C11/02; F; F16; F16N; F16N31/00; F16N31/002; F16N35/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
115 words
A system for storing waste fluids in bulk, which may be situated at a service station or like establishment, comprising: a tank having an access opening defined therein; a stationary pedestal beneath said tank for supporting said tank on a flat, horizontal surface; an upstanding receptacle on top of said tank surrounding said access opening, said receptacle including at least one side wall defining an upper opening, and a lid member hingedly mounted to said side wall for covering said upper opening; and a removable grate provided within said receptacle over said access opening, said grate being adapted for supporting at least one inverted oil filter, whereby waste oil can be drained from the filter.
Claim 2
Independent Claim
115 words
A system for storing waste fluids in bulk, which may be situated at a service station or like establishment, comprising: a tank having an access opening defined therein; a stationary pedestal beneath said tank for supporting said tank on a flat, horizontal surface; an upstanding receptacle on top of said tank surrounding said access opening, said receptacle including at least one side wall defining an upper opening, and a lid member hingedly mounted to said side wall for covering said upper opening; and a removable grate provided within said receptacle over said access opening, said grate being adapted for supporting at least one inverted oil filter, whereby waste oil can be drained from the filter.
Claim 3
Dependent Claim
26 words
A system according to claim 1, further comprising step means adjacent said tank for providing an operator a place to stand during servicing of said receptacle.
Claim 4
Dependent Claim
15 words
A system according to claim 2, wherein said step means is supported by said pedestal.
Claim 5
Dependent Claim
32 words
A system according to claim 1, wherein said tank comprises an outer wall, an inner wall and thermal insulation material provided in a space between said outer wall and said inner wall.
Claim 6
Dependent Claim
27 words
A system according to claim 4, further comprising means for indicating whether fluid has leaked in to said space between said inner wall and said outer wall.
Claim 7
Dependent Claim
17 words
A system according to claim 1, wherein said pedestal comprises a pair of elongate metallic skid members.
Claim 8
Dependent Claim
20 words
A system according to claim 1, wherein said receptacle includes a funnel surface for guiding fluid into said access opening.
Claim 9
Dependent Claim
18 words
A system according to claim 1, further comprising means for selectively lifting said lid towards an open position.
Claim 10
Dependent Claim
17 words
A system according to claim 8, wherein said lid lifting means includes a manually depressible foot pedal.
Claim 11
Dependent Claim
34 words
A system according to claim 1, further comprising means for indicating when said tank has become filled to a predetermined level, whereby an operator will know that it is time to empty the tank.
Claim 12
Dependent Claim
20 words
A system according to claim 1, wherein said tank includes at least one lifting lug on an upper surface thereof.
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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) | 1994-07-22 | 1995-01-21 | 1995-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-22 | 1999-01-21 | 1999-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-22 | 2003-01-21 | 2003-07-23 | $7700.00 | Window Closed / Lapsed |