Patent US4577671A successfully refreshed from Google Patents.
US4577671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casting decoring device
Assignee: Individual
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Filing: 1984-06-21
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Granted: 1986-03-25
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Expires: 2004-06-21
Abstract
Abstract A casting decoring device to decore metal castings by vibration within an enclosure. The enclosure provides a dust and sound isolation of the casting from the environment with the casting held in an isolation fixture within. A time control circuit is provided to cycle the device according to the size and number of castings within to be treated.
Inventors
- 👤 Mark C. Stephan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:33
CPC Classifications
B; B22; B22D; B22D29/00; B22D29/001; B22D29/005
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
162 words
A casting decoring device comprising in combination an enclosure having side walls, a top and apertured bottom, a door on said enclosure having a main support frame with a sound isolation panel secured thereto and a plurality of roller assemblies thereon, means for soundproofing said enclosure, a door guide means on said enclosure, a pair of door clamps comprising pneumatic piston and cylinder assemblies selectively activated mounted on said enclosure movably engaging said door assembly in sealing relation to said enclosure, a support fixture removably positioned within said enclosure, isolation means on said support fixture isolating said fixture from said apertured bottom, said isolation means comprising isolation bags positioned between an isolation support plate and said support fixture, a plurality of locator wells on said apertured bottom aligned with support feet extending from said isolation support plate, a pneumatic gun removably secured on said support fixture, means for centrally controlling said pneumatic gun and said door clamps in an interdependent controlled cycle.
Claim 2
Dependent Claim
162 words
A casting decoring device comprising in combination an enclosure having side walls, a top and apertured bottom, a door on said enclosure having a main support frame with a sound isolation panel secured thereto and a plurality of roller assemblies thereon, means for soundproofing said enclosure, a door guide means on said enclosure, a pair of door clamps comprising pneumatic piston and cylinder assemblies selectively activated mounted on said enclosure movably engaging said door assembly in sealing relation to said enclosure, a support fixture removably positioned within said enclosure, isolation means on said support fixture isolating said fixture from said apertured bottom, said isolation means comprising isolation bags positioned between an isolation support plate and said support fixture, a plurality of locator wells on said apertured bottom aligned with support feet extending from said isolation support plate, a pneumatic gun removably secured on said support fixture, means for centrally controlling said pneumatic gun and said door clamps in an interdependent controlled cycle.
Claim 3
Dependent Claim
33 words
The casting decoring device of claim 1 wherein said door guide means comprises guide tracks secured to said means for supporting said enclosure and a counter weight in communication with said door assembly.
Claim 4
Dependent Claim
46 words
The casting decoring device of claim 1 wherein said central control means comprises a control system having an inlet supply line, a plurality of line filters and pressure regulators, pilot control switches, an on/off switch, a timer and pilot control and supply lines interconnecting the same.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-24 | 1989-09-23 | 1990-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-24 | 1993-09-23 | 1994-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-24 | 1997-09-23 | 1998-03-25 | $7700.00 | Window Closed / Lapsed |