Patent US2640755A successfully refreshed from Google Patents.
Patent US4597225A successfully refreshed from Google Patents.
US4597225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interchangeable support disc for diamond-bearing plates of circular milling cutters
Assignee: Individual
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Filing: 1985-07-01
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Granted: 1986-07-01
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Expires: 2005-07-01
Abstract
Abstract An interchangeable support disc for diamond-bearing plates used in circular milling cutters for the planing of stones, marbles, granite and the like comprises a plurality of such plates mounted on discs which are in turn connected by screws to a circular support member so that the discs may easily be replaced. The parallelepipedal shape of the diamond bearing plates is particularly advantageous for the polishing of marble, granite, and similar materials because it contributes to the stability of the device. The screws are located out of center of the discs and closer to the center of the circular support member.
Inventors
- 👤 Marcello Toncelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:20
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/18; B28D1/186; B28D1/188
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A circular milling cutter for stone, marble, granite and the like, which comprises: (a) a circular support member for rotating about a center and (1) having an annular array of circular recesses (5); (b) a circular disc (3) mounted on said circular support rotatable member (1) in each said recess (5); (c) a screw (2) which connects each said discs to said circular support rotating member; said screw passing perpendicularly to the plane of each of said discs; (d) a diamond bearing plate (4) mounted on each of said discs (3), said plate being of parallelopipedal shape, wherein said screw is located closer to the center of said circular support rotating member (1) than said diamond-bearing plate, said screw being located eccentrically with respect to the center of each of said discs (3), and said diamond-bearing plate being welded to said disc.
Claim 2
Dependent Claim
142 words
A circular milling cutter for stone, marble, granite and the like, which comprises: (a) a circular support member for rotating about a center and (1) having an annular array of circular recesses (5); (b) a circular disc (3) mounted on said circular support rotatable member (1) in each said recess (5); (c) a screw (2) which connects each said discs to said circular support rotating member; said screw passing perpendicularly to the plane of each of said discs; (d) a diamond bearing plate (4) mounted on each of said discs (3), said plate being of parallelopipedal shape, wherein said screw is located closer to the center of said circular support rotating member (1) than said diamond-bearing plate, said screw being located eccentrically with respect to the center of each of said discs (3), and said diamond-bearing plate being welded to said disc.
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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) | 1989-06-30 | 1989-12-30 | 1990-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-30 | 1993-12-30 | 1994-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-30 | 1997-12-30 | 1998-07-01 | $7700.00 | Window Closed / Lapsed |