US4037368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for deflashing small parts
Assignee: Toll Cryogenics Inc
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Filing: 1975-04-11
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Granted: 1977-07-26
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Expires: 1995-04-11
Abstract
Abstract Apparatus for removal of flash from small molded plastic and rubber parts, including a specially configured cryogenic shaking vessel and support and drive means for imparting a reciprocating rotational movement thereto. In the preferred embodiment the generally elongated shaker vessel has rounded ends and bottom, and the vessel is oscillated about an axis perpendicular to the longitudinal axis of the vessel, so that a maximum mixing of the product and the deflashing media, which may be sharply pointed objects such as chrome plated tacks, occurs within the shaking vessel.
Inventors
- 👤 William S. Kerwin
- 👤 John Rodney Nelson
- 👤 Hans Robert Toll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:13
CPC Classifications
B; B29; B29C; B29C37/00; B29C37/02; B24; B24B; B24B31/00; B24B31/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
53 words
The method of deflashing molded parts, comprising the steps of: a. placing a plurality of the parts to be deflashed in a generally elongated container having generally rounded ends; b. supporting the container with its longitudinal axis generally in a horizontal plane; and c. rotationally oscillating the container about a generally vertical axis.
Claim 2
Independent Claim
53 words
The method of deflashing molded parts, comprising the steps of: a. placing a plurality of the parts to be deflashed in a generally elongated container having generally rounded ends; b. supporting the container with its longitudinal axis generally in a horizontal plane; and c. rotationally oscillating the container about a generally vertical axis.
Claim 3
Dependent Claim
18 words
The method according to claim 1 further including the additional step of placing deflashing media in the container.
Claim 4
Dependent Claim
24 words
The method of claim 1 further including the step of cooling the parts to their embrittlement temperature before imparting the motion to the container.
References Cited (Backward Citations)
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US2022527A
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US2423019A
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GB663581A
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US2881571A
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US2912803A
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US3108408A
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US3093940A
Cited
US3333367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |