US3811231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-separating vibratory finishing apparatus
Assignee: Tipton Manufacturing Corp
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Filing: 1970-11-02
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Granted: 1974-05-21
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Expires: 1990-11-02
Abstract
Abstract A self-separating vibratory finishing apparatus has an annular trough which is vibrated by a reversible motor having two eccentric weights, one of which leads or lags the other weight by a controlled angle automatically during rotation in each sense of rotation. A mass made up of workpieces and abrasive material effects a helical shifting motion in the direction opposite to the direction of motor rotation so that workpieces are surface finished. For separation purposes, a flap is moved downwardly into the mass in a direction so that the mass pushes it down. The mass overflows the flap onto a sieve, being aided by a flash gate having a special shape vertically positioned in the flowing mass upstream of the flap. The trough can also be helical and have a plurality of such gates disposed at intervals along the helical trough to permit the mass to ascend the trough for separation purposes.
Inventors
- 👤 H Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:11
CPC Classifications
B; B24; B24B; B24B31/00; B24B31/06; B24B31/073
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
288 words
A self-separating vibratory finishing apparatus comprising, in combination, a generally horizontal arcuate trough means adapted to hold a mass comprised of a quantity of finishing materials and workpieces to be finished, reversible electric motor means mounted on said trough means and having a vertical rotor, weight means mounted on said rotor, the position of which is automatically changeable upon a change of direction of rotation of said motor means and acts during rotation thereof for vibrating said arcuate trough means to cause said mass to effect a helical motion and motion along said trough means in one direction for finishing during rotation of said motor means in one direction and vibrating said arcuate trough means to cause said mass to effect a different helical motion and motion along said trough means in the other direction for separation of the components of the mass during rotation of the motor means in the other direction, sieve means disposed on said arcuate trough to retain finished workpieces thereon while permitting the finishing material to fall into said trough means, a flap member mounted adjacent to said sieve means for rotation around a horizontal axis and being upwardly rotated by said mass during movement of said mass in said one direction from a lowered position blocking said trough means to a generally horizontal position to permit free finishing movement of said mass along said Trough, said flap being downwardly rotated by said mass during movement of said mass in said other direction from said generally horizontal position to said lowered position to block said trough means and intercept the movement of said mass along said trough means in said other direction and cause the mass to be lifted up onto the sieve.
Claim 2
Dependent Claim
288 words
A self-separating vibratory finishing apparatus comprising, in combination, a generally horizontal arcuate trough means adapted to hold a mass comprised of a quantity of finishing materials and workpieces to be finished, reversible electric motor means mounted on said trough means and having a vertical rotor, weight means mounted on said rotor, the position of which is automatically changeable upon a change of direction of rotation of said motor means and acts during rotation thereof for vibrating said arcuate trough means to cause said mass to effect a helical motion and motion along said trough means in one direction for finishing during rotation of said motor means in one direction and vibrating said arcuate trough means to cause said mass to effect a different helical motion and motion along said trough means in the other direction for separation of the components of the mass during rotation of the motor means in the other direction, sieve means disposed on said arcuate trough to retain finished workpieces thereon while permitting the finishing material to fall into said trough means, a flap member mounted adjacent to said sieve means for rotation around a horizontal axis and being upwardly rotated by said mass during movement of said mass in said one direction from a lowered position blocking said trough means to a generally horizontal position to permit free finishing movement of said mass along said Trough, said flap being downwardly rotated by said mass during movement of said mass in said other direction from said generally horizontal position to said lowered position to block said trough means and intercept the movement of said mass along said trough means in said other direction and cause the mass to be lifted up onto the sieve.
Claim 3
Dependent Claim
69 words
A self-separating vibratory finishing apparatus as claimed in claim 1 in which said rotor means has a shaft, and said weight means comprises a pair of eccentric weights, one mounted on each end of said shaft for limited rotary movement freely in both directions, reversal of rotation of said motor causing automatic shifting of said weights from one extreme rotated position thereof to the other extreme rotated position thereof.
Claim 4
Dependent Claim
31 words
A self-separating vibratory finishing apparatus as claimed in claim 1 wherein said lowered position of said flap member is at an angle of from 80 to 40 degrees to the horizontal.
Claim 5
Dependent Claim
115 words
A self-separating vibratory finishing apparatus as claimed in claim 1 further comprising at least one flash gate member movably mounted on said trough means upstream of said flap member relative to the movement of said mass in said other direction and movable on said trough means from an inoperative position above said mass to an operative position where said flash gate member is vertically disposed in the moving mass with a gap between the lower end thereof and the adjacent portion of the bottom of the trough means, said flash gate member having the lower edge recessed on that portion near the outer side wall of the trough means for partly blocking the moving mass.
Claim 6
Dependent Claim
28 words
A self-separating vibratory finishing apparatus as claimed in claim 4 in which said trough means is an annular trough means and there is a single flash gate member.
Claim 7
Dependent Claim
42 words
A self-separating vibratory finishing apparatus as claimed in claim 1 wherein said trough means has an open top and an outer side wall having one portion vertically disposed and the remaining portion inwardly curved over the trough defined by said trough means.
Claim 8
Dependent Claim
153 words
A self-separating vibratory finishing apparatus comprising, in combination, a helically coiled trough means having vertically spaced turns and adapted to hold a mass comprised of a quantity of finishing materials and workpieces to be finished, electric motor means mounted on said trough means and having a vertical rotor, weight means mounted on said rotor, which during rotation thereof for vibrating said arcuate trough means to cause said mass to effect a helical motion and motion along said trough means in the upward direction for finishing during rotation of said motor means, sieve means disposed on said arcuate trough to retain finished workpieces thereon while permitting the finishing material to fall into said trough means, and a plurality of flash gate members disposed in spaced relationship along said arcuate trough means with a gap formed between the lower end of each flash gate and the adjacent portions of the bottom of the trough means.
Claim 9
Dependent Claim
153 words
A self-separating vibratory finishing apparatus comprising, in combination, a helically coiled trough means having vertically spaced turns and adapted to hold a mass comprised of a quantity of finishing materials and workpieces to be finished, electric motor means mounted on said trough means and having a vertical rotor, weight means mounted on said rotor, which during rotation thereof for vibrating said arcuate trough means to cause said mass to effect a helical motion and motion along said trough means in the upward direction for finishing during rotation of said motor means, sieve means disposed on said arcuate trough to retain finished workpieces thereon while permitting the finishing material to fall into said trough means, and a plurality of flash gate members disposed in spaced relationship along said arcuate trough means with a gap formed between the lower end of each flash gate and the adjacent portions of the bottom of the trough means.
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) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |