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US4640431A Expired / Lapsed US ⏱️ 0.0 years remaining

Dual-chambered oil changing container

Assignee: Individual
•
Filing: 1985-07-03
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Granted: 1987-02-03
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Expires: 2005-07-03
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Abstract

Abstract There is disclosed a dual-chambered container suited for use in changing the engine oil of a motor vehicle. The container comprises two chambers, one for receiving the used engine oil as it is drained from the motor vehicle and another chamber that contains new oil for replenishing the engine's oil reservoir with fresh oil. The two chambers are independent yet integrally bonded together to form the unique container. Each chamber has its own opening and closure means for receiving, transporting, and dispensing the engine oil.

Inventors

  • 👤 Robert W. Harrison

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 15:23
CPC Classifications
B; B65; B65D; B65D21/00; B65D21/02; B65D21/0209; B65D21/0228; F; F01; F01M; F01M11/00; F01M11/04; F01M11/0458; F16; F16N; F16N31/00; F16N31/002; F16N31/004; Y; Y10; Y10S; Y10S220/00; Y10S220/06

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 99 words
A dual-chambered oil changing container comprising: (a) a new oil chamber having a generally flat configuration defined by upper and lower broad, spaced surfaces, said upper surface having a shallow recess and a converging downward slope to a used oil inlet; and (b) a used oil chamber situated beneath said new oil chamber, said used oil chamber having a generally flat configuration defined by a broad, spaced top and base, said top having a cylindrical extension that extends from said top through said lower surface of said new oil chamber and is integrally connected to said used oil inlet.
Claim 2
Dependent Claim 99 words
A dual-chambered oil changing container comprising: (a) a new oil chamber having a generally flat configuration defined by upper and lower broad, spaced surfaces, said upper surface having a shallow recess and a converging downward slope to a used oil inlet; and (b) a used oil chamber situated beneath said new oil chamber, said used oil chamber having a generally flat configuration defined by a broad, spaced top and base, said top having a cylindrical extension that extends from said top through said lower surface of said new oil chamber and is integrally connected to said used oil inlet.
Claim 3
Dependent Claim 34 words
A dual-chambered oil changing container as described in claim 1 further comprising a new oil opening located on the front of said new oil chamber and a removable closure means for sealing said opening.
Claim 4
Dependent Claim 18 words
A dual-chambered oil changing container, as described in claim 2, wherein said closure means is a female cap.
Claim 5
Dependent Claim 29 words
A dual-chambered oil changing container, as described in claim 3, further comprising an integral handle formed on the front of said new oil chamber containing said new oil opening.
Claim 6
Dependent Claim 26 words
A dual-chambered oil changing container, as described in claim 1, wherein said inlet is configured to accommodate a removable plug for sealing said used oil chamber.
Claim 7
Dependent Claim 26 words
A dual-chambered oil changing container as described in claim 1, wherein the capacities of said new oil chamber and said used oil chamber are substantially equal.
Claim 8
Dependent Claim 55 words
A dual-chambered oil changing container, as described in claim 1, wherein said used oil chamber is of sufficient capacity to hold the volume of used oil contained in a motor vehicle engine oil reservoir and said new oil chamber is of sufficient capacity of hold the volume of new oil necessary to refill said reservoir.
Claim 9
Dependent Claim 38 words
A dual-chambered oil changing container, as described in claim 7, wherein the capacity of said new oil chamber is approximately three to five quarts and the capacity of said used oil chamber is approximately three to five quarts.
Claim 10
Dependent Claim 43 words
A dual-chambered oil changing container, as described in claim 1, wherein said new oil chamber overhangs the perimeter of said used oil chamber thereby providing a grip portion surrounding said container to assist positioning said container underneath a vehicle for collecting used oil.
Claim 11
Dependent Claim 25 words
A dual-chambered oil changing container, as described in claim 1, wherein said new and used oil chambers are separated horizontally by a double wall thickness.
Claim 12
Dependent Claim 130 words
A dual-chambered oil changing container, as described in claim 1, wherein said upper surface of new oil chamber is configured with a planar section extending inwardly from the outer perimeter of said new oil chamber, and a connecting portion extending downward between the inward end of said planar section and the beginning of said downwardly sloping funnel-like upper surface, whereby the perimeter defined by said connecting portion is slightly larger than the periphery of said used oil chamber and said dual-chambered oil changing containers are thereby stackable in a resting relationship with said base of said used oil chamber of one container resting on the outer portion of said funnel-like upper surface of another container within the confines of said planar section and said connecting portion of said other container.
Claim 13
Dependent Claim 33 words
A dual-chambered oil changing container, as described in claim 1, wherein said top of said used oil chamber slopes slightly upwardly from the perimeter of said used oil chamber to said cylindrical extension.
Claim 14
Dependent Claim 171 words
A dual-chambered oil changing container comprising: (a) a new oil chamber having a generally flat configuration defined by upper and lower broad, spaced surfaces and one or more upper side walls to enclose said new oil chamber, said upper surfaces having a broad shallow recess that slopes downwardly to a used oil inlet that is fitted with a removable plug; (b) a used oil chamber situated beneath said new oil chamber, said used oil chamber having a configuration generally similar to that of said new oil chamber and a broad, spaced top and base, and one or more lateral walls that extend between said top and base to enclose said used oil chamber, said top having a cylindrical extension that passes through said new oil chamber to said used oil inlet; (c) a new oil opening located on said upper side wall of said new oil chamber and a closure means for removably sealing said opening; and (d) a handle integral with said upper side wall of said new oil chamber.
Claim 15
Dependent Claim 171 words
A dual-chambered oil changing container comprising: (a) a new oil chamber having a generally flat configuration defined by upper and lower broad, spaced surfaces and one or more upper side walls to enclose said new oil chamber, said upper surfaces having a broad shallow recess that slopes downwardly to a used oil inlet that is fitted with a removable plug; (b) a used oil chamber situated beneath said new oil chamber, said used oil chamber having a configuration generally similar to that of said new oil chamber and a broad, spaced top and base, and one or more lateral walls that extend between said top and base to enclose said used oil chamber, said top having a cylindrical extension that passes through said new oil chamber to said used oil inlet; (c) a new oil opening located on said upper side wall of said new oil chamber and a closure means for removably sealing said opening; and (d) a handle integral with said upper side wall of said new oil chamber.
Claim 16
Dependent Claim 29 words
A dual-chambered oil changing container, as described in claim 13, wherein said new oil chamber and said used oil chamber are separate chambers bonded together to form said container.

References Cited (Backward Citations)

US1568830A Cited
US1951498A Cited
US4098398A Cited
US4296838A Cited
US4403692A Cited
US4488584A Cited
US4524866A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-02-02 1990-08-04 1991-02-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-02-02 1994-08-04 1995-02-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-02-02 1998-08-04 1999-02-03 $7700.00 Window Closed / Lapsed

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