US4880312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing apparatus
Assignee: Individual
•
Filing: 1988-03-24
•
Granted: 1989-11-14
•
Expires: 2008-03-24
Abstract
Abstract A mixing apparatus for use in mixing liquids such as paints or oil base stains wherein the mixing apparatus consists of a plurality of imwardly extending perimeter baffles and upwardly extending inner baffles to obstruct the free flow of liquid during the rotation of the container and, in the preferred embodiment, the baffles are molded as an integral part of the liquid container to provide a convenient container wherein the liquid may be mixed by merely rotating the container.
Inventors
- 👤 John T. Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:34
CPC Classifications
B; B01; B01F; B01F31/00; B01F31/10; B01F33/00; B01F33/50; B01F33/501; B01F33/5011; B01F35/00; B01F35/50; B01F35/53; B01F35/531; B01F35/5312; Y; Y10; Y10S; Y10S366/00; Y10S366/605
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
175 words
A conveniently carryable integral plastic molded mixing apparatus for mixing paint, stain and like liquids typically subject to separation and settlement of their various components, comprising a cylindrical container, consisting of a bottom and a side having inner and outer surfaces and a handle for lifting and carrying the container a plurality of perimeter baffles molded into the container and extending upwardly from said bottom and inwardly from said inner surface, first and second inner baffles molded into the container and extending upwardly from said bottom and offset from the perimeter baffles, each other and the center of said bottom and oriented in a generally spaced parallel relation to said perimeter baffles, and said perimeter baffles extending upwardly approximately two-thirds and said first inner baffle extending upwardly approximately one-half the heighth of said inner surface to obstruct the free flow of liquid in said container when said container is manually rotated by the handle and to permit clean pouring of the liquid from the container without messy dripping out of the container from the baffles.
Claim 2
Dependent Claim
175 words
A conveniently carryable integral plastic molded mixing apparatus for mixing paint, stain and like liquids typically subject to separation and settlement of their various components, comprising a cylindrical container, consisting of a bottom and a side having inner and outer surfaces and a handle for lifting and carrying the container a plurality of perimeter baffles molded into the container and extending upwardly from said bottom and inwardly from said inner surface, first and second inner baffles molded into the container and extending upwardly from said bottom and offset from the perimeter baffles, each other and the center of said bottom and oriented in a generally spaced parallel relation to said perimeter baffles, and said perimeter baffles extending upwardly approximately two-thirds and said first inner baffle extending upwardly approximately one-half the heighth of said inner surface to obstruct the free flow of liquid in said container when said container is manually rotated by the handle and to permit clean pouring of the liquid from the container without messy dripping out of the container from the baffles.
Claim 3
Dependent Claim
22 words
The mixing apparatus of claim 1 wherein said a second inner baffle which extends upwardly partially the heighth of said inner surface.
Claim 4
Dependent Claim
39 words
The mixing apparatus of claim 1, wherein said cylindrical container includes a pair of handle attachments located opposingly along said outer surface of said side, and said baffles are oriented in a generally parallel orientation to said handle attachments.
Claim 5
Dependent Claim
36 words
The mixing apparatus of claim 1, wherein said first inner baffle is generally rectangular and includes a plurality of openings therein to provide a further route of flow for the liquid when said container is rotated.
Claim 6
Dependent Claim
43 words
The mixing apparatus of claim 2, wherein the perimeter baffles extend upwardly from the bottom of the container further than the first inner baffle, and said first inner baffle extends upwardly from the bottom of the container further than the second inner baffle.
References Cited (Backward Citations)
FR392508A
Cited
US1280458A
Cited
US1701187A
Cited
US1989019A
Cited
US2021495A
Cited
US2156541A
Cited
US2965274A
Cited
US3085281A
Cited
US3224742A
Cited
US3920226A
Cited
US4050678A
Cited
US4253772A
Cited
US4332482A
Cited
US4494878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-13 | 1993-05-15 | 1993-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-13 | 1997-05-15 | 1997-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-13 | 2001-05-15 | 2001-11-14 | $7700.00 | Window Closed / Lapsed |