Patent US3899281A successfully refreshed from Google Patents.
US3899281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibrator apparatus, especially for producing large shaped carbon members
Assignee: Kloeckner Humboldt Deutz AG
•
Filing: 1973-03-26
•
Granted: 1975-08-12
•
Expires: 1993-03-26
Abstract
Abstract Vibrator apparatus for producing cast members of granular material includes a foundation, a vibratory table having an oscillating drive, spring means for vibratorily mounting the vibratory table on the foundation, and a molding box connected to the vibratory table, the spring means being disposed between the vibratory table and the foundation so that, in direction of vibration, the spring means are at least partly stressed in shear.
Inventors
- 👤 Willy Jakobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:11
CPC Classifications
B; B28; B28B; B28B1/00; B28B1/08; B28B1/087; B28B1/0873; B30; B30B; B30B11/00; B30B11/02; B30B11/022; Y; Y10; Y10S; Y10S181/00; Y10S181/40; Y10S181/401
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
147 words
In vibrator apparatus for producing cast members of granular material comprising a foundation, a vibratory table having an oscillating drive, solid elastic spring means for vibratorily mounting said vibratory table on said foundation, and a molding box connected to said vibratory table; wherein said spring means are disposed between said vibratory table and said foundation so that, in direction of vibration, said spring means are at least partly stressed in shear, said spring means comprising a plurality of pairs of spring members that are inclined at an angle of between 30* and 60* with respect to the plane of said foundation, each of said respective pairs of said spring members forming a spring unit, the members of each pair being mutually inclined symmetrically so that the unit has the shape of a peaked roof, the members of each pair being held in position by force of gravity.
Claim 2
Dependent Claim
147 words
In vibrator apparatus for producing cast members of granular material comprising a foundation, a vibratory table having an oscillating drive, solid elastic spring means for vibratorily mounting said vibratory table on said foundation, and a molding box connected to said vibratory table; wherein said spring means are disposed between said vibratory table and said foundation so that, in direction of vibration, said spring means are at least partly stressed in shear, said spring means comprising a plurality of pairs of spring members that are inclined at an angle of between 30* and 60* with respect to the plane of said foundation, each of said respective pairs of said spring members forming a spring unit, the members of each pair being mutually inclined symmetrically so that the unit has the shape of a peaked roof, the members of each pair being held in position by force of gravity.
Claim 3
Dependent Claim
47 words
Vibrator apparatus according to claim 1 including a holder device for said spring members, respectively, disposed on said foundation, said holder device comprising a box-shaped support member having an upper contact surface for the respective spring member, and a support frame laterally surrounding said upper contact surface.
Claim 4
Dependent Claim
32 words
Vibrator apparatus according to claim 2, wherein said support frame is formed with surfaces facing toward the respective spring member seated on said upper contact surface, which are at least partly curved.
References Cited (Backward Citations)
US2179959A
Cited
US2407168A
Cited
US2636719A
Cited
US2819060A
Cited
US2706112A
Cited
US3160376A
Cited
US3235244A
Cited
US3277551A
Cited
US3347502A
Cited
US3447671A
Cited
US3545706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |