Patent US2644889A successfully refreshed from Google Patents.
Patent US3756520A successfully refreshed from Google Patents.
US3756520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass pulverizer
Assignee: COMMERCIAL HOLDINGS Ltd
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Filing: 1970-11-09
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Granted: 1973-09-04
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Expires: 1990-11-09
Abstract
Abstract A glass pulverization apparatus including a cylindrical pulverization chamber having a pair of case hardened steel impeller blades located therein for pulverizing glass articles or the like. The peripheral speed and the unit torque of the impeller blades along with a gap maintained between the end of the respective impeller blades and the surface of the cylindrical pulverization chamber ensures rapid pulverization of glass articles or the like. An escape aperture, which is offset from a vertical line normal to the horizontal axis of the drive shaft that rotates the impeller blades, provides for a secondary means of determining the end size of the pulverized glass. A receiving chute is positioned at a 45* angle to the cylindrical pulverization chamber to facilitate the rapid pulverization of the glass articles or the like.
Inventors
- 👤 M Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:40
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/02; B02C13/06; B02C19/00; B02C19/0056; B02C19/0081; B02C19/0087; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/60
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
178 words
Apparatus for pulverizing glass-like articles comprising: motor means including a drive shaft for providing rotatioal motion; a cylindrical chamber having an escape aperture, said cylindrical chamber having an inner cylindrical surface; pulverization means located within said cylindrical means located within said cylindrical chamber, said pulverization means including at least two impeller blades, located in parallel planes to each other and disc-like mounting means, said impeller blades being mounted to said disc-like mounting means, said disc-like mounting means being mounted to said drive shaft of said motor means, said distal end of each said impeller blade having a 1/4 inch, 45* chamfer to provide a 1/4 inch gap between said respective chamfered distal ends of said impeller blades and said inner cylindrical surface of said cylindrical chamber; receiving chute means having an input end and an output end said receiving chute means mounted to said cylindrical chamber for providing gravity feed of said glass-like articles to said cylindrical chamber; and receptacle means located below said cylindrical chamber in proximity of said escape aperture for receiving said pulverized glass-like articles.
Claim 2
Dependent Claim
178 words
Apparatus for pulverizing glass-like articles comprising: motor means including a drive shaft for providing rotatioal motion; a cylindrical chamber having an escape aperture, said cylindrical chamber having an inner cylindrical surface; pulverization means located within said cylindrical means located within said cylindrical chamber, said pulverization means including at least two impeller blades, located in parallel planes to each other and disc-like mounting means, said impeller blades being mounted to said disc-like mounting means, said disc-like mounting means being mounted to said drive shaft of said motor means, said distal end of each said impeller blade having a 1/4 inch, 45* chamfer to provide a 1/4 inch gap between said respective chamfered distal ends of said impeller blades and said inner cylindrical surface of said cylindrical chamber; receiving chute means having an input end and an output end said receiving chute means mounted to said cylindrical chamber for providing gravity feed of said glass-like articles to said cylindrical chamber; and receptacle means located below said cylindrical chamber in proximity of said escape aperture for receiving said pulverized glass-like articles.
Claim 3
Dependent Claim
42 words
Apparatus for pulverizing glass-like articles as recited in claim 1 wherein said drive shaft of said motor means rotates at a desired speed to provide sufficient unit torque to said impeller blades whereby said glass-like articles are pulverized to a powder-like form.
References Cited (Backward Citations)
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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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |