Patent US1467440A successfully refreshed from Google Patents.
Patent US4402826A successfully refreshed from Google Patents.
US4402826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibrating screen
Assignee: NAUCHNO-ISSLEDOVATELSKY I PROEKTNY INSTITUT PO OBOGASCHENIJU I AGLOMERTSII RUD CHERNYKH METALLOV USSR KRIVOI ROG
•
Filing: 1981-11-06
•
Granted: 1983-09-06
•
Expires: 2001-11-06
Abstract
Abstract In a vibrating screen, an oscillation driver is connected with a box carrg a screen member at a portion wherein one center of oscillation of the box is located, and is disposed relative to the screen member of the box in an opposite relationship with a bearing damper. Bearing levers supporting the box are disposed substantially perpendicular to the central axis of inertia of the latter and are adjacent the box at a portion of location of its another center of oscillation.
Inventors
- 👤 Alexandr D. Uchitel
- 👤 Evgeny A. Zelov
- 👤 Leonid J. Brener
- 👤 Evgeny G. Baturov
- 👤 Anatoly G. Derbas
- 👤 Kim D. Ivchenko
- 👤 Jury K. Kuevda
- 👤 Ivan T. Khomich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:29
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/28; B07B1/284; B07B1/42
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
181 words
A vibrating screen, comprising a frame; a bearing damper; bearing levers provided with hinges at both ends thereof; a box having at least one screen member and hingedly connected to said frame by said bearing damper and said bearing levers, said levers being substantially perpendicular to the central axis of inertia of said box and hingedly adjoining said box at a region of one center of oscillation of said box; and an oscillation driver connected to said box and adjoining said box at a region of another center of oscillation of said box, and disposed relative to said screen member of said box in an opposite relationship to said bearing damper; the positional arrangement of said oscillation driver, levers, and damper causes, with operation of said driver, said screen to vibrate with a non-uniform vibration field such that said screen vibrates in the region of said one center of oscillation with a substantially tangential trajectory with respect to its plane, and vibrates in the region of said another center of oscillation with a substantially perpendicular trajectory with respect to its plane.
Claim 2
Dependent Claim
181 words
A vibrating screen, comprising a frame; a bearing damper; bearing levers provided with hinges at both ends thereof; a box having at least one screen member and hingedly connected to said frame by said bearing damper and said bearing levers, said levers being substantially perpendicular to the central axis of inertia of said box and hingedly adjoining said box at a region of one center of oscillation of said box; and an oscillation driver connected to said box and adjoining said box at a region of another center of oscillation of said box, and disposed relative to said screen member of said box in an opposite relationship to said bearing damper; the positional arrangement of said oscillation driver, levers, and damper causes, with operation of said driver, said screen to vibrate with a non-uniform vibration field such that said screen vibrates in the region of said one center of oscillation with a substantially tangential trajectory with respect to its plane, and vibrates in the region of said another center of oscillation with a substantially perpendicular trajectory with respect to its plane.
Claim 3
Dependent Claim
21 words
A vibrating screen as claimed in claim 1, wherein said oscillation driver is an inertial vibrator mounted directly on said box.
Claim 4
Dependent Claim
65 words
A vibrating screen as claimed in claim 1, wherein said screen member of said box is inclined to the horizontal at a portion between the centers of oscillation of said box and has an inlet portion and an outlet portion, said portions being disposed at corresponding angles of inclination to the horizon greater than the angle of inclination to the horizon of said screen member.
Claim 5
Dependent Claim
34 words
A vibrating screen as claimed in claim 1, wherein axes of rotation of hinges of said bearing levers at the ends adjoining said box coincide with said one center of oscillation of said box.
Claim 6
Dependent Claim
245 words
A vibrating screen, comprising a frame; a bearing damper; bearing levers provided with hinges at both ends thereof; a box having at least one screen member and hingedly connected to said frame by said bearing damper and said bearing levers, said screen member being inclined to the horizontal at a portion between the centers of oscillation of said box and having an inlet portion and an outlet portion, said portions being at corresponding angles of inclination to the horizon greater than the angle of inclination to the horizon of said screen member, said bearing levers being substantially perpendicular to the central axis of inertia of said box and hingedly adjoining said box so that axes of rotation of the hinges of said levers coincide with one center of oscillation of said box; and an oscillation driver consisting of an inertial vibrator mounted directly on said box at a portion of another center of oscillation of said box, and disposed relative to said screen member of said box in an opposite relationship to said bearing damper; the positional arrangement of said oscillation driver, levers, and damper causes, with operation of said driver, said screen to vibrate with a non-uniform vibration field such that said screen vibrates in the region of said one center of oscillation with a substantially tangential trajectory with respect to its plane, and vibrates in the region of said another center of oscillation with a substantially perpendicular trajectory with respect to its plane.
Claim 7
Dependent Claim
245 words
A vibrating screen, comprising a frame; a bearing damper; bearing levers provided with hinges at both ends thereof; a box having at least one screen member and hingedly connected to said frame by said bearing damper and said bearing levers, said screen member being inclined to the horizontal at a portion between the centers of oscillation of said box and having an inlet portion and an outlet portion, said portions being at corresponding angles of inclination to the horizon greater than the angle of inclination to the horizon of said screen member, said bearing levers being substantially perpendicular to the central axis of inertia of said box and hingedly adjoining said box so that axes of rotation of the hinges of said levers coincide with one center of oscillation of said box; and an oscillation driver consisting of an inertial vibrator mounted directly on said box at a portion of another center of oscillation of said box, and disposed relative to said screen member of said box in an opposite relationship to said bearing damper; the positional arrangement of said oscillation driver, levers, and damper causes, with operation of said driver, said screen to vibrate with a non-uniform vibration field such that said screen vibrates in the region of said one center of oscillation with a substantially tangential trajectory with respect to its plane, and vibrates in the region of said another center of oscillation with a substantially perpendicular trajectory with respect to its plane.
References Cited (Backward Citations)
US3236381A
Cited
US3703236A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-05 | 1987-03-07 | 1987-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-05 | 1991-03-07 | 1991-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-05 | 1995-03-07 | 1995-09-06 | $7700.00 | Window Closed / Lapsed |