US3971358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and arrangement for dressing of grinding wheels
Assignee: Saint Gobain Diamantwerkzeuge GmbH and Co KG
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Filing: 1974-04-29
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Granted: 1976-07-27
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Expires: 1994-04-29
Abstract
Abstract A grinding wheel is rotated and contacted with two driven dressing rollers which are so driven that they will remove material from the grinding wheel in alternately opposite dressing directions but at identical relative dressing speeds.
Inventors
- 👤 Wlodzimierz Sawluk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:38
CPC Classifications
B; B24; B24B; B24B53/00; B24B53/003; B24B53/06; B24B53/07
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
72 words
A method of dressing and sharpening a grinding wheel, comprising the steps of rotating a grinding wheel at a predetermined speed; contacting the grinding wheel simultaneously with two dressing rollers; and jointly driving each of said dressing rollers with a peripheral speed different from the other and being different from the grinding wheel speed and in mutually opposite dressing directions to remove material from said grinding wheel with identical relative dressing speeds.
Claim 2
Independent Claim
72 words
A method of dressing and sharpening a grinding wheel, comprising the steps of rotating a grinding wheel at a predetermined speed; contacting the grinding wheel simultaneously with two dressing rollers; and jointly driving each of said dressing rollers with a peripheral speed different from the other and being different from the grinding wheel speed and in mutually opposite dressing directions to remove material from said grinding wheel with identical relative dressing speeds.
Claim 3
Dependent Claim
27 words
A method as defined in claim 1; and further comprising the step of moving said grinding wheel along its axis of rotation during the step of dressing.
Claim 4
Independent Claim
84 words
An apparatus for dressing and sharpening of grinding wheels, comprising mounting means mounting a grinding wheel for rotation at a predetermined peripheral speed; a pair of adjacent dressing rollers in contact with said grinding wheel; and drive means driving each of said dressing rollers at a peripheral speed different from the other and each being different from the predetermined peripheral speed of said grinding wheel and so that the dressing directions of said dressing rollers are mutually opposite and the dressing speeds are identical.
Claim 5
Independent Claim
84 words
An apparatus for dressing and sharpening of grinding wheels, comprising mounting means mounting a grinding wheel for rotation at a predetermined peripheral speed; a pair of adjacent dressing rollers in contact with said grinding wheel; and drive means driving each of said dressing rollers at a peripheral speed different from the other and each being different from the predetermined peripheral speed of said grinding wheel and so that the dressing directions of said dressing rollers are mutually opposite and the dressing speeds are identical.
Claim 6
Dependent Claim
54 words
An apparatus as defined in claim 3, wherein said drive means comprises a motor, a first transmission connecting said motor with one of said dressing rollers and having a transmission ratio of ##EQU10## and a second transmission connecting said motor with the other of said dressing rollers and having a transmission ratio of ##EQU11##
Claim 7
Dependent Claim
58 words
An apparatus as defined in claim 3, wherein said rollers have identical diameters; and wherein said drive means comprises a motor, a first transmission connecting said motor with one of said rollers and having a transmission ratio of ##EQU12## and a second transmission connecting said one roller with the other roller and having a transmission ratio of ##EQU13##
Claim 8
Dependent Claim
24 words
An apparatus as defined in claim 3, wherein said rollers have different diameters; and wherein said drive means rotates said rollers at identical rpm.
Claim 9
Dependent Claim
67 words
An apparatus as defined in claim 3, wherein said drive means comprises a motor, a first transmission connecting said motor with one of said rollers, and a second transmission connecting said motor with the other of said rollers, each of said transmissions comprising at least one replaceable pulley that can be exchanged for a pulley having a different diameter, and a drive belt cooperating with said pulley.
Claim 10
Dependent Claim
15 words
An apparatus as defined in claim 3, wherein said rollers have profiled circumferentially extending faces.
Claim 11
Dependent Claim
13 words
An apparatus as defined in claim 3, wherein said rollers are of steel.
Claim 12
Dependent Claim
21 words
An apparatus as defined in claim 3, wherein said rollers are of a hard metal other than steel, i.e. tungsten carbide.
Claim 13
Dependent Claim
30 words
An apparatus as defined in claim 3, wherein said rollers are in part of low carbon steel and in part of a hard metal, i.e. tungsten carbide other than steel.
Claim 14
Dependent Claim
18 words
An apparatus as defined in claim 3, wherein said rollers are provided with a layer of diamantine material.
Claim 15
Dependent Claim
20 words
An apparatus as defined in claim 3, wherein said rollers are provided with a layer of cubic-crystalline boric nitride material.
Claim 16
Dependent Claim
40 words
An apparatus as defined in claim 3, wherein said drive means comprises a motor and a pair of transmissions which connect said motor with the respective rollers, one of said transmissions being adjustable and having a continuously variable transmission ratio.
Claim 17
Dependent Claim
51 words
An apparatus as defined in claim 3, wherein said drive means comprises a motor, a first transmission connecting said motor with one of said rollers, and a second transmission connecting said one roller with the other of said rollers, both of said transmissions being adjustable and having continuously variable transmission ratios.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-27 | 1980-01-26 | 1980-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-27 | 1984-01-26 | 1984-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-27 | 1988-01-26 | 1988-07-27 | $7700.00 | Window Closed / Lapsed |