US3948105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Proportioning and mixing graduate
Assignee: Individual
•
Filing: 1975-04-01
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Granted: 1976-04-06
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Expires: 1995-04-01
Abstract
Abstract A three-compartment graduate having a main liquid-receiving compartment, a smaller spatially separated liquid-receiving compartment and a normally unfilled mixing compartment coextensively overlying the liquid-receiving compartments is provided with integrally embossed graduate marks and associated indicia along transparent walls of the liquid-receiving compartments visually identifying predetermined volume relationships between the contents within the respective compartments. The graduate enables rapid volume proportioning and mixing of the proportioned liquids within the single container, and is particularly adapted for titrating oil-gasoline mixtures used for the operation of two-cycle internal combustion engines.
Inventors
- 👤 Earl Johnson, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:26
CPC Classifications
G; G01; G01F; G01F19/00; F; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
188 words
A three compartment proportioning and mixing graduate of transparent material having an elongate top and a flat bottom, said graduate comprising a horizontally extending mixing compartment subjacently and coextensively underlying said top, a main liquid-receiving compartment and a spatially separated smaller liquid-receiving compartment each in communication with and extending downwardly from the ends of said mixing compartment, a horizontally extending neck interposed between said liquid-receiving compartments and bridging the space therebetween, said neck defining a restricted portion of said mixing compartment bounded along the upper surface by said top and along the lower surface by said neck, longitudinally spaced openings in said top, one above said main compartment and the other above said smaller compartment, a single row of vertically spaced graduate marks and associated indicia disposed along said main compartment for visibly indicating the level of the surface of a liquid therein, and an array of ratio-designated rows of vertically spaced graduate marks and associated indicia disposed on an upstanding side of said smaller compartment, the marks in said array being positioned to selectively indicate predetermined volume relationships of the liquid contained within the respective liquid-receiving compartments.
Claim 2
Dependent Claim
188 words
A three compartment proportioning and mixing graduate of transparent material having an elongate top and a flat bottom, said graduate comprising a horizontally extending mixing compartment subjacently and coextensively underlying said top, a main liquid-receiving compartment and a spatially separated smaller liquid-receiving compartment each in communication with and extending downwardly from the ends of said mixing compartment, a horizontally extending neck interposed between said liquid-receiving compartments and bridging the space therebetween, said neck defining a restricted portion of said mixing compartment bounded along the upper surface by said top and along the lower surface by said neck, longitudinally spaced openings in said top, one above said main compartment and the other above said smaller compartment, a single row of vertically spaced graduate marks and associated indicia disposed along said main compartment for visibly indicating the level of the surface of a liquid therein, and an array of ratio-designated rows of vertically spaced graduate marks and associated indicia disposed on an upstanding side of said smaller compartment, the marks in said array being positioned to selectively indicate predetermined volume relationships of the liquid contained within the respective liquid-receiving compartments.
Claim 3
Dependent Claim
26 words
The graduate as defined in claim 1, wherein the upstanding array-bearing side of the smaller compartment is coplanar with the indicia-bearing side of the main compartment.
Claim 4
Dependent Claim
26 words
The graduate as claimed in claim 1, wherein the top of the graduate and the underside of the main compartment lie in vertically spaced parallel planes.
Claim 5
Dependent Claim
108 words
The graduate as set forth in claim 1, in which the graduate marks disposed on said main compartment are spaced to designate ten differing liquid levels numbered 1 through 10, and said array of indicia and associated graduate marks disposed on said smaller compartment includes at least six parallel ratio-designated upstanding rows of graduate marks, the graduate marks of each row being numbered 1 through 10, the volume of a liquid within the smaller compartment as indicated by any graduate mark thereon being related to the volume within the main compartment indicated by a like numbered graduate mark thereon by the ratio designation of the particular row observed.
Claim 6
Dependent Claim
20 words
The graduate as claimed in claim 4, in which adjacent graduate marks on the main compartment designate identical volumes therein.
Claim 7
Dependent Claim
40 words
The graduate according to claim 1, wherein said smaller compartment is cantilevered from the outer end of said neck and depends therefrom to an intermediate elevation between that of the upper end of the main compartment and the underside thereof.
Claim 8
Dependent Claim
41 words
The graduate as claimed in claim 6, in which the opening providing access to the smaller compartment is fitted with a removable closure and a coextensive pouring spout is joined with the perimeter of the opening leading to the main compartment.
Claim 9
Dependent Claim
24 words
The graduate as defined in claim 6, wherein graduate marks and associated indicia are integrally embossed portions of the wall structure of the graduate.
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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) | 1979-04-06 | 1979-10-06 | 1980-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-06 | 1983-10-06 | 1984-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-06 | 1987-10-06 | 1988-04-06 | $7700.00 | Window Closed / Lapsed |