US3642133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibrating screen with one or more groups of screening elements
Assignee: Individual
•
Filing: 1969-06-02
•
Granted: 1972-02-15
•
Expires: 1989-06-02
Abstract
Abstract A vibrating screen comprises a main frame and at least two parallel pluralities of separate screening members. The members of each plurality feed one to another in cascade and each of the members is separately resiliently mounted on the main frame for independent vibrating movement relative to the main frame and relative to each other. Vibrating means and motor means for driving the vibrating means are provided for the screening members.
Inventors
- 👤 Michele Venanzetti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:55
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/28; B07B1/284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A vibrating screen comprising a main frame, at least two parallel pluralities of separate screening members, the members of each plurality feeding one to another in cascade in each longitudinal plurality, separate means resiliently mounting each of said members on the main frame for independent vibrating movement of each of said members relative to said main frame and relative to eAch other, vibrator means connected to each of said screening members, and motor means for driving said vibrator means.
Claim 2
Dependent Claim
79 words
A vibrating screen comprising a main frame, at least two parallel pluralities of separate screening members, the members of each plurality feeding one to another in cascade in each longitudinal plurality, separate means resiliently mounting each of said members on the main frame for independent vibrating movement of each of said members relative to said main frame and relative to eAch other, vibrator means connected to each of said screening members, and motor means for driving said vibrator means.
References Cited (Backward Citations)
US3097537A
Cited
US2115110A
Cited
DE868547C
Cited
US2779470A
Cited
US2775347A
Cited
US3506122A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-14 | 1975-08-16 | 1976-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-14 | 1979-08-16 | 1980-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-14 | 1983-08-16 | 1984-02-15 | $7700.00 | Window Closed / Lapsed |