Patent US3745719A successfully refreshed from Google Patents.
US3745719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding wheel for floor grinding machine
Assignee: Individual
•
Filing: 1971-12-13
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Granted: 1973-07-17
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Expires: 1991-12-13
Abstract
Abstract A flat steel wheel is provided for a floor grinding machine. The wheel which is provided with a group of regularly distributed diamond matrices is further provided with a group of regularly distributed tungsten carbide buttons, which protrude from the wheel to a lesser extent than the diamond matrices and, provide for evening the wear of the matrices should one matrix tend to wear more rapidly than another. Instead of the flat wheel, a spider can be used in which abrasive elements are replaceably mounted. Carbide buttons are located on the spider to prevent wear and destruction of the same.
Inventors
- 👤 F Oswald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:52
CPC Classifications
B; B24; B24D; B24D7/00; B24D7/06; B24D7/066
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
75 words
A grinding device comprising a support, a plurality of grinding means mounted on said support, and wear resistant means on said support and distributed among said grinding means, said wear resistant means having a greater resistance to deterioration due to grinding than said grinding means, said grinding means and wear resistant means extending at least generally in the same direction from said support and being of different heights prior to deterioration of said grinding means.
Claim 2
Dependent Claim
75 words
A grinding device comprising a support, a plurality of grinding means mounted on said support, and wear resistant means on said support and distributed among said grinding means, said wear resistant means having a greater resistance to deterioration due to grinding than said grinding means, said grinding means and wear resistant means extending at least generally in the same direction from said support and being of different heights prior to deterioration of said grinding means.
Claim 3
Dependent Claim
15 words
A device as claimed in claim 1 wherein said grinding means includes spaced diamond matrices.
Claim 4
Dependent Claim
15 words
A device as claimed in claim 2 wherein said wear resistant means are carbide buttons.
Claim 5
Dependent Claim
28 words
A device as claimed in claim 3 wherein said support is a circular steel wheel having a generally flat face to which said matrices and buttons are affixed.
Claim 6
Dependent Claim
25 words
A device as claimed in claim 4 wherein said matrices are elongated mambers which are regularly distributed on said face in radial and circumferential attitudes.
Claim 7
Dependent Claim
24 words
A device as claimed in claim 5 wherein said buttons are regularly distributed on said face on an imaginary circle concentric with said wheel.
Claim 8
Dependent Claim
36 words
A device as claimed in claim 3 wherein said matrices have a generally common initial height of which a portion, adjacent the support, is devoid of diamonds, said buttons having a height corresponding to said portion.
Claim 9
Dependent Claim
29 words
A device as claimed in claim 3 wherein the support is provided with bores in which said buttons are located, said buttons having a brazed connection with said support.
Claim 10
Dependent Claim
14 words
A device as claimed in claim 3 wherein the buttons are tungsten carbide buttons.
Claim 11
Dependent Claim
17 words
A device as claimed in claim 4 wherein said wheel is provided with a central mounting opening.
Claim 12
Dependent Claim
37 words
A device as claimed in claim 1 wherein said support is a spider including pairs of spaced depending lips, abrasive blocks between the lips of each said pair, and carbide buttons on the bottom of the lips.
Claim 13
Dependent Claim
16 words
A device as claimed in claim 11 wherein the blocks before wearing extend below said buttons.
References Cited (Backward Citations)
US2442129A
Cited
US3121982A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |