US4702223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diamond grinder assembly and snap-fit mounting means for scarifier case
Assignee: Equipment Dev Co Inc
•
Filing: 1986-04-10
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Granted: 1987-10-27
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Expires: 2006-04-10
Abstract
Abstract A scarifier case for mounting on disc rotor grinders, wherein the case is designed to snap attach and quick disconnect selected grinder inserts in the case without requiring the case to be removed from the rotor disc to change a selected grinder insert.
Inventors
- 👤 Leo Swan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:38
CPC Classifications
E; E02; E02F; E02F5/00; E02F5/30
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
155 words
A case for suitable attachment to the rotor disc of a grinder, in combination with an insert grinding assembly, comprising a rectangular flat plate having an outboard side and an inboard side, said plate having quick connection means at each opposite end between the walls of the case and the opposite ends of the said plate, wherein the case wall at one end is formed with an inturned lip coacting with an outboard end of the flat plate to thereby permit engagement under said lip, wherein the improvement, comprises: a compressible block for positioning within the case to yieldably resist depression of the plate when it is engaged under said lip thereby urging the end to engage upwardly against the underside of said lip, said compressible block being substantially coextensive with the inboard side of said plate; and a plurality of segments having selected grinding properties secured to the outboard side of said flat plate.
Claim 2
Dependent Claim
155 words
A case for suitable attachment to the rotor disc of a grinder, in combination with an insert grinding assembly, comprising a rectangular flat plate having an outboard side and an inboard side, said plate having quick connection means at each opposite end between the walls of the case and the opposite ends of the said plate, wherein the case wall at one end is formed with an inturned lip coacting with an outboard end of the flat plate to thereby permit engagement under said lip, wherein the improvement, comprises: a compressible block for positioning within the case to yieldably resist depression of the plate when it is engaged under said lip thereby urging the end to engage upwardly against the underside of said lip, said compressible block being substantially coextensive with the inboard side of said plate; and a plurality of segments having selected grinding properties secured to the outboard side of said flat plate.
Claim 3
Dependent Claim
17 words
A case as described in claim 1, wherein the said segments are formed of diamond grinding material.
Claim 4
Dependent Claim
31 words
A case as described in claim 1, further comprising: position locating means secured to the inboard side of said plate for positioning said insert grinding assembly against said compressible support means.
Claim 5
Dependent Claim
30 words
A case as claimed in claim 3, wherein said position locating means comprises transversely spaced bars extending from the underside of the said plate and engaging said compressible support means.
Claim 6
Dependent Claim
13 words
A case as described in claim 1, wherein said compressible block is rubber.
References Cited (Backward Citations)
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US3179103A
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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) | 1990-10-26 | 1991-04-27 | 1991-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-26 | 1995-04-27 | 1995-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-26 | 1999-04-27 | 1999-10-27 | $7700.00 | Window Closed / Lapsed |