US3655168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable cement mixer
Assignee: Individual
•
Filing: 1970-08-20
•
Granted: 1972-04-11
•
Expires: 1990-08-20
Abstract
Abstract A cement mixer having a frame with a pair of spaced rotating supporting rods projecting upward therefrom and adapted to support a container in which cement is to be mixed and a bearing wheel positioned between the two supporting rods and adapted to engage the bottom of a container to support same from sliding down the rods into contact with the frame.
Inventors
- 👤 Ralph Frank Lord
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:03
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/08; B28C5/18; B28C5/1806; B28C5/1818
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
81 words
A mixer comprising a frame, a pair of spaced substantially parallel rods rotatably mounted in said frame for rotation on axes of rotation, a supporting section of each of said rods projecting from said frame in cantilever fashion at an angle to a supporting surface on which the frame may be mounted and adapted to support and rotate a container substantially along its entire length, a bearing wheel mounted on said frame and projecting therefrom between said pair of supporting sections.
Claim 2
Dependent Claim
81 words
A mixer comprising a frame, a pair of spaced substantially parallel rods rotatably mounted in said frame for rotation on axes of rotation, a supporting section of each of said rods projecting from said frame in cantilever fashion at an angle to a supporting surface on which the frame may be mounted and adapted to support and rotate a container substantially along its entire length, a bearing wheel mounted on said frame and projecting therefrom between said pair of supporting sections.
Claim 3
Dependent Claim
67 words
A mixer as defined in claim 1, wherein said bearing wheel is adapted to engage and support a container that may be mounted on and rotated by said supporting section, said wheel being positioned between said supporting sections closer to one of said sections than the other whereby said wheel contacts said container on its upwardly moving side as said container is rotated by said supporting sections.
Claim 4
Dependent Claim
43 words
A mixer as defined in claim 2, wherein one of said support sections extends at an angle to said axis of rotation sufficient to cause said container to vibrate by the eccentricity of said one of said supporting sections bearing against said container.
Claim 5
Dependent Claim
44 words
A mixer as defined in claim 2, wherein both of said supporting sections are at an angle of about 1* to 3* to said axes of rotation whereby said container is vibrated by the eccentricity of said sections relative to said axis of rotation.
Claim 6
Dependent Claim
26 words
A mixer as defined in claim 2, further comprising means to rotate said rods, driving both of said rods and thereby both of said supporting sections.
Claim 7
Dependent Claim
27 words
A mixer as defined in claim 5, wherein said supporting sections of said rods are covered with a friction sleeve adapted to engage and drive said container.
Claim 8
Dependent Claim
30 words
A mixer as defined in claim 6, wherein said wheel is mounted for rotation on a caster body which is rotatable on an axis parallel to said axes of rotation.
Claim 9
Dependent Claim
42 words
A mixer as defined in claim 6, wherein one of said support sections extends at an angle of about 1* to 3* to said axis of rotation whereby said container is vibrated by the eccentricity of said one of said supporting sections.
Claim 10
Dependent Claim
40 words
A mixer as defined in claim 6, wherein both of said supporting sections are at a slight angle to said axes of rotation whereby said container is vibrated by the eccentricity of said sections relative to said axis of rotation.
Claim 11
Dependent Claim
44 words
A mixer as defined in claim 1, wherein both of said supporting sections are at an angle of about 1* to 3* to said axes of rotation whereby said container is vibrated by the eccentricity of said sections relative to said axis of rotation.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |