US3666096A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable vibrating screener
Assignee: Midwestern Industries Inc
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Filing: 1969-11-28
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Granted: 1972-05-30
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Expires: 1989-11-28
Abstract
Abstract A portable material separator to be used with a container having an opening of any shape in the top thereof. A vibrating device is attached to a plane which rests on a plurality of cushions. The cushions are mounted on a base plate which fits within the opening in, and rests on top of, the container. A screen spans the opening in the container and is mounted in a frame which rests on the plate and therefore receives vibrations therefrom. A clamping means holds the above described assembly in a properly spaced relationship.
Inventors
- 👤 Laverne J Riesbeck
- 👤 Willis A Blackwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:47
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/28; B07B1/34
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
175 words
A material screening device for use with a container capable of collecting material passing through the screen and having an opening in the top thereof defined by a lip comprising, base frame means resting on the lip of the container having associated therewith a means for aligning the screening device with the container and having an opening therein substantially corresponding to the opening in the top of the container, a vibrator plate resiliently mounted on said base frame means and having an opening therein substantially corresponding to the opening in the top of the container, vibrating means attached to said vibrator plate, screen mounting means carrying a screen for overlying the opening in the container and resting on said vibrator plate, and means holding said screen mounting means on said vibrator plate so that vibrations from said vibrating means are transmitted to said screen whereby at least some of the material placed on said screen will pass through said screen and the openings in said vibrator plate and base frame means and into the container.
Claim 2
Dependent Claim
175 words
A material screening device for use with a container capable of collecting material passing through the screen and having an opening in the top thereof defined by a lip comprising, base frame means resting on the lip of the container having associated therewith a means for aligning the screening device with the container and having an opening therein substantially corresponding to the opening in the top of the container, a vibrator plate resiliently mounted on said base frame means and having an opening therein substantially corresponding to the opening in the top of the container, vibrating means attached to said vibrator plate, screen mounting means carrying a screen for overlying the opening in the container and resting on said vibrator plate, and means holding said screen mounting means on said vibrator plate so that vibrations from said vibrating means are transmitted to said screen whereby at least some of the material placed on said screen will pass through said screen and the openings in said vibrator plate and base frame means and into the container.
Claim 3
Dependent Claim
34 words
A material screening device according to claim 1 having an input guiding frame resting on said screen mounting means and held thereagainst by said means holding said screen mounting means on said vibrator plate.
Claim 4
Dependent Claim
41 words
A material screening device according to claim 1 wherein said means for holding said screen mounting means on said vibrator plate is a clamp permanently affiXed to said base frame and adapted to selectively engage and hold said screen mounting means.
Claim 5
Dependent Claim
24 words
A material screening device according to claim 1 wherein cushioning means between said base frame and said vibrating plate provide the resilient mounting therebetween.
Claim 6
Dependent Claim
20 words
A material screening device according to claim 1 having means for centering said screen over the opening in the container.
Claim 7
Dependent Claim
36 words
A material screening device according to claim 5, wherein said means for centering said screen comprises dowel pin means extending upwardly from said base frame adapted to center said screen mounting means on said base plate.
Claim 8
Dependent Claim
115 words
A material screening device for use with a container having an opening in the top thereof comprising, base frame means for resting on the top of the container, a vibrator plate resiliently mounted on said base frame means, vibrating means attached to said vibrator plate, screen mounting means carrying a screen for overlying the container and resting on said vibrator plate, skirt means extending downwardly into the container so as to guide the material into the container and prevent the material form lodging between said base frame means and said vibrator plate, and means holding said screen mounting means on said vibrator plate so that vibrations from said vibrating means are transmitted to said screen.
Claim 9
Dependent Claim
115 words
A material screening device for use with a container having an opening in the top thereof comprising, base frame means for resting on the top of the container, a vibrator plate resiliently mounted on said base frame means, vibrating means attached to said vibrator plate, screen mounting means carrying a screen for overlying the container and resting on said vibrator plate, skirt means extending downwardly into the container so as to guide the material into the container and prevent the material form lodging between said base frame means and said vibrator plate, and means holding said screen mounting means on said vibrator plate so that vibrations from said vibrating means are transmitted to said screen.
Claim 10
Dependent Claim
140 words
A material separating device comprising, a container means for receiving material through an opening in the top thereof, a base frame resting on the upper edge of said container and having an opening therein, said base frame including a means for maintaining alignment with said container means, a vibrator plate resiliently mounted on said base frame and having an opening therein, vibrating means attached to said vibrator plate, screen mounting means carrying a screen which spans the opening in said container means and rests on said vibrator plate, and means holding said screen mounting means on said vibrator plate so that vibrations from said vibrating means are transmitted to said screen whereby a selected portion of the material to be separated placed on said screen is passed through said screen, base frame and vibrator plate and into said container means.
Claim 11
Dependent Claim
140 words
A material separating device comprising, a container means for receiving material through an opening in the top thereof, a base frame resting on the upper edge of said container and having an opening therein, said base frame including a means for maintaining alignment with said container means, a vibrator plate resiliently mounted on said base frame and having an opening therein, vibrating means attached to said vibrator plate, screen mounting means carrying a screen which spans the opening in said container means and rests on said vibrator plate, and means holding said screen mounting means on said vibrator plate so that vibrations from said vibrating means are transmitted to said screen whereby a selected portion of the material to be separated placed on said screen is passed through said screen, base frame and vibrator plate and into said container means.
Claim 12
Independent Claim
136 words
A device for screening material into a container comprising, a base frame having an opening therein, a vibrator plate resiliently mounted on said base frame and having an opening therein, means to align said base frame and said vibrator plate with the container, means to vibrate said vibrator plate attached to said vibrator plate, screen mounting means for carrying a screen means for overlying the openings in said base frame and said vibrator plate and resting on said vibrator plate, means holding said screen mounting means on said vibrator plate so that vibrations from said vibrating means are transmitted to said screen means whereby at least some of the material placed on said screen means will pass through said screen means and the openings in said vibrator plate and said base frame and into the container.
Claim 13
Independent Claim
136 words
A device for screening material into a container comprising, a base frame having an opening therein, a vibrator plate resiliently mounted on said base frame and having an opening therein, means to align said base frame and said vibrator plate with the container, means to vibrate said vibrator plate attached to said vibrator plate, screen mounting means for carrying a screen means for overlying the openings in said base frame and said vibrator plate and resting on said vibrator plate, means holding said screen mounting means on said vibrator plate so that vibrations from said vibrating means are transmitted to said screen means whereby at least some of the material placed on said screen means will pass through said screen means and the openings in said vibrator plate and said base frame and into the container.
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) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |