US3735964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powered mechanical shaker device
Assignee: Individual
•
Filing: 1972-02-07
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Granted: 1973-05-29
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Expires: 1992-02-07
Abstract
Abstract An open top, open end cradle for the jar containing the material to be mixed by shaking has a resilient pad in one end cooperating with a coiled compression spring on a hinged closure at the other end that is suitably secured in closed position, as by a crossin, is subjected to vigorous oscillation with minimum vibration of the support on which the electric drive motor furnishing the power is mounted, suitable cushioning friction pads and feet secured to the bottom of the base, reducing likelihood of creeping relative to a table top or the like on which the shaker may be set. A supporting boss centrally located on one side of the cradle assures good balance as the axis of oscillation extends substantially through the center of the load being oscillated, which accounts for the small vibration involved in the operation of the device, and the horizontal drive shaft extending from the boss is carried in a bearing fixed to and extending upwardly from the base, so that a radius arm attached to the driven end of the shaft can be operated directly by a roller carried on a driven disk mounted on the end of the armature shaft of the aforesaid motor, the roller operating lengthwise of a groove provided in one side of the aforesaid radius arm to give simple harmonic motion with quiet and smooth operation and substantially a minimum number of parts required and the maximum compactness. A generally U-shaped inverted guard carried on the base encloses the aforesaid disk and radius arm for safety in operation.
Inventors
- 👤 R K Lorenzen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:03
CPC Classifications
B; B01; B01F; B01F31/00; B01F31/20; B01F31/23; B01F35/00; B01F35/40; B01F35/42
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
136 words
In a powered mechanical shaker device a substantially horizontal base, a single elongated bearing supported rigidly in parallel spaced fixed relation to said base, a drive shaft oscillatable in said bearing and extending from opposite ends thereof, an elongated radius arm fixed to one end of said shaft and having a longitudinally extending runway thereon, an electric motor mounted on said base operating a crank pin in a circle at a predetermined radius relative thereto operable lengthwise of said runway to transmit simple harmonic motion substantially, directly to said shaft in its oscillation, and a substantially horizontal cradle fixedly mounted on the other end of said shaft for oscillatory motion and having means for securing therein a container of material to be shaken continuously for a given length of time as for mixing of the material.
Claim 2
Dependent Claim
136 words
In a powered mechanical shaker device a substantially horizontal base, a single elongated bearing supported rigidly in parallel spaced fixed relation to said base, a drive shaft oscillatable in said bearing and extending from opposite ends thereof, an elongated radius arm fixed to one end of said shaft and having a longitudinally extending runway thereon, an electric motor mounted on said base operating a crank pin in a circle at a predetermined radius relative thereto operable lengthwise of said runway to transmit simple harmonic motion substantially, directly to said shaft in its oscillation, and a substantially horizontal cradle fixedly mounted on the other end of said shaft for oscillatory motion and having means for securing therein a container of material to be shaken continuously for a given length of time as for mixing of the material.
Claim 3
Dependent Claim
147 words
In a powered mechanical shaker device, a substantially horizontal base, a single elongated bearing supported rigidly in parallel spaced fixed relation to said base, a drive shaft oscillatable in said bearing and extending from opposite ends thereof, an elongated radius arm fixed to one end of said shaft and having a longitudinally extending runway thereon, an electric motor mounted on said base having a flywheel fixed to the armature shaft thereof and carrying a crank pin operating in a circle at a predetermined radius relative thereto operable lengthwise of said runway to transmit simple harmonic motion substantially, directly to said shaft in its oscillation, and a substantially horizontal cradle fixedly mounted on the other end of said shaft for oscillatory motion and having means for securing therein a container of material to be shaken continuously for a given length of time as for mixing of the material.
Claim 4
Dependent Claim
147 words
In a powered mechanical shaker device, a substantially horizontal base, a single elongated bearing supported rigidly in parallel spaced fixed relation to said base, a drive shaft oscillatable in said bearing and extending from opposite ends thereof, an elongated radius arm fixed to one end of said shaft and having a longitudinally extending runway thereon, an electric motor mounted on said base having a flywheel fixed to the armature shaft thereof and carrying a crank pin operating in a circle at a predetermined radius relative thereto operable lengthwise of said runway to transmit simple harmonic motion substantially, directly to said shaft in its oscillation, and a substantially horizontal cradle fixedly mounted on the other end of said shaft for oscillatory motion and having means for securing therein a container of material to be shaken continuously for a given length of time as for mixing of the material.
Claim 5
Dependent Claim
30 words
A powered mechanical shaker device as set forth in claim 1 wherein said crank pin carries a roller freely rotatable relative thereto and operable in said runway with rolling friction.
Claim 6
Dependent Claim
56 words
A powered mechanical shaker device as set forth in claim 1 wherein said crank pin carries a roller freely rotatable relative thereto and operable in said runway with rolling friction, the runway being in the form of a groove in said radius arm in which the roller is retained against axial displacement from said crank pin.
Claim 7
Dependent Claim
30 words
A powered mechanical shaker device as set forth in claim 2 wherein said crank pin carries a roller freely rotatable relative thereto and operable in said runway with rolling friction.
Claim 8
Dependent Claim
35 words
A powered mechanical shaker device as set forth in claim 5 wherein said flywheel is formed of a light weight material and carries a counterweight thereon in diametrically opposed balancing relationship to said crank pin.
Claim 9
Dependent Claim
56 words
A powered mechanical shaker device as set forth in claim 2 wherein said crank pin carries a roller freely rotatable relative thereto and operable in said runway with rolling friction, the runway being in the form of a groove in said radius arm in which the roller is retained against axial displacement from said crank pin.
Claim 10
Dependent Claim
35 words
A powered mechanical shaker device as set forth in claim 2 wherein said flywheel is formed of a light weight material and carries a counterweight thereon in diametrically opposed balancing relationship to said crank pin.
Claim 11
Dependent Claim
71 words
A powered mechanical shaker device as set forth in claim 1 wherein said cradle is of open top generally rectangular form with a horizontal boss centrally located fixed on one side thereof to which the end of the drive shaft is fixed, so that the axis about which the cradle and container therein are oscillated passes approximately through the center of the load being oscillated, permitting rapid shaking with minimum vibration.
Claim 12
Dependent Claim
81 words
A powered mechanical shaker device as set forth in claim 9 wherein the cradle is open at one end where a closure is provided, there being a compressible resilient cushion pad in the other end of said cradle to bear against one end of a container, the closure having a coiled compression spring mounted on the inside thereof arranged to be compressed endwise by contact with the other end of a container, and means for securing the closure in closed position.
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) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |