Patent US4718204A successfully refreshed from Google Patents.
US4718204A
Expired / Lapsed
US
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Lamellar end grinding wheel
Assignee: Individual
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Filing: 1986-05-09
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Granted: 1988-01-12
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Expires: 2006-05-09
Abstract
Abstract The invention relates to a lamellar end grinding wheel in which abrasive flaps engage over one another in tile-like manner along the circumferential zones of a circular disc-shaped back plate and are advantageously fixed with the aid of fingers. The abrasive flaps are also anchored in the back plate in that thickened portions are provided along one or both sides of the rear edge region thereof. The anchoring means can also comprise the abrasive flaps having one or more slot-like recesses in the edge region thereof and through these can be passed fingers or finger portions.
Inventors
- 👤 Gerd Eisenblatter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:53
CPC Classifications
B; B24; B24D; B24D13/00; B24D13/14; B24D13/16
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
81 words
Lamellar end grinding wheel, in which abrasive flaps overlap one another in tile-like manner and are fixed along the circumferential zone of a circular disc-shaped flexible back plate and project through radial slots in the circumferential zone, said back plate being a sheet metal plate and said abrasive flaps being held by clamping by edges of the radial slots and each of said slots including at least one finger being shaped onto an edge of said radial slots for said clamping.
Claim 2
Dependent Claim
81 words
Lamellar end grinding wheel, in which abrasive flaps overlap one another in tile-like manner and are fixed along the circumferential zone of a circular disc-shaped flexible back plate and project through radial slots in the circumferential zone, said back plate being a sheet metal plate and said abrasive flaps being held by clamping by edges of the radial slots and each of said slots including at least one finger being shaped onto an edge of said radial slots for said clamping.
Claim 3
Dependent Claim
17 words
Lamellar end grinding wheel according to claim 1, wherein the fingers are subdivided into several finger portions.
Claim 4
Dependent Claim
21 words
Lamellar end grinding wheel according to claim 1, wherein reciprocally displaced fingers are fitted to two facing edges of said slots.
Claim 5
Dependent Claim
23 words
Lamellar end grinding wheel according to claim 1, wherein each finger has projecting stamping points extending towards the base of the abrasive flap.
Claim 6
Dependent Claim
18 words
Lamellar end grinding wheel according to claim 4, wherein the stamping points are constructed as angular, acute-angled edges.
Claim 7
Dependent Claim
57 words
Lamellar end grinding wheel according to claim 1, wherein on the side of the back plate remote from a working surface is provided a supporting disc, the circumferential edges of the back plate and supporting disc are firmly interconnected and between the back plate and supporting disc are firmly secured the rear ends of the abrasive flaps.
Claim 8
Dependent Claim
23 words
Lamellar end grinding wheel according to claim 1, wherein on a rear edge region of each abrasive flap is provided an anchoring means.
Claim 9
Dependent Claim
27 words
Lamellar end grinding wheel according to claim 7, wherein the anchoring means on the rear edge region is constructed as a thickened portion of the abrasive flap.
Claim 10
Dependent Claim
33 words
Lamellar end grinding wheel according to claim 8, wherein the thickened portion comprises rivets which are inserted in the abrasive flap at a certain point along the edge of the rear edge region.
Claim 11
Dependent Claim
23 words
Lamellar end grinding wheel according to claim 8, wherein the thickened portion comprises adhesive beads applied to either side of the abrasive flap.
Claim 12
Dependent Claim
23 words
Lamellar end grinding wheel according to claim 8, wherein the thickened portion comprises edge strips fitted to either side of the abrasive flap.
Claim 13
Dependent Claim
41 words
Lamellar end grinding wheel according to claim 7, wherein said anchoring means comprises at least one recess arranged in a rear edge region of the abrasive flap and through which can be passed said finger or at least one finger portion.
Claim 14
Dependent Claim
30 words
Lamellar end grinding wheel according to claim 7, wherein said anchoring means comprises two laterally open recesses on each abrasive flap for the engagement of ends of each radial slot.
Claim 15
Dependent Claim
18 words
Lamellar end grinding wheel according to claim 1, wherein the abrasive flaps are bonded to the back plate.
Claim 16
Dependent Claim
72 words
Lamellar end grinding wheel, in which abrasive flaps overlap one another in tile-like manner and are fixed along the circumferential zone of a circular disc-shaped, flexible back plate and project through radial slots in a circumferential zone, a rear end of each abrasive flap includes an anchoring means formed by a completely surrounded recess of each abrasive flap and a flat, arcuate strip passed through said recess of several juxtaposed abrasive flaps.
Claim 17
Dependent Claim
72 words
Lamellar end grinding wheel, in which abrasive flaps overlap one another in tile-like manner and are fixed along the circumferential zone of a circular disc-shaped, flexible back plate and project through radial slots in a circumferential zone, a rear end of each abrasive flap includes an anchoring means formed by a completely surrounded recess of each abrasive flap and a flat, arcuate strip passed through said recess of several juxtaposed abrasive flaps.
Claim 18
Dependent Claim
67 words
Lamellar end grinding wheel, in which abrasive flaps overlap one another in tile-like manner, project through radial slots in the circumferential zone of a circular disc-shaped flexible back plate and are held by clamping along the circumferential zone characterized in that the clamping effect is formed by in each case at least one finger and that the latter is shaped onto the edge of a radial slot.
Claim 19
Dependent Claim
67 words
Lamellar end grinding wheel, in which abrasive flaps overlap one another in tile-like manner, project through radial slots in the circumferential zone of a circular disc-shaped flexible back plate and are held by clamping along the circumferential zone characterized in that the clamping effect is formed by in each case at least one finger and that the latter is shaped onto the edge of a radial slot.
Claim 20
Dependent Claim
17 words
Lamellar end grinding wheel according to claim 16, wherein the fingers are subdivided into several finger portions.
Claim 21
Dependent Claim
20 words
Lamellar end grinding wheel according to claim 16, wherein reciprocally displaced fingers are fitted to two facing edges of slots.
Claim 22
Dependent Claim
23 words
Lamellar end grinding wheel according to claim 16, wherein each finger has projecting stamping points extending towards the base of the abrasive flap.
Claim 23
Dependent Claim
18 words
Lamellar end grinding wheel according to claim 19, wherein the stamping points are constructed as angular, acute-angled edges.
Claim 24
Dependent Claim
56 words
Lamellar end grinding wheel according to claim 16, wherein by clamping each flap by means of at least one finger, the ends of the abrasive flaps comprise a slot-like recess, through which is passed a finger or a corresponding finger portion and that each finger or corresponding finger portion, which passes through a slot-like recess, tapers.
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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) | 1991-01-11 | 1991-07-13 | 1992-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-11 | 1995-07-13 | 1996-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-11 | 1999-07-13 | 2000-01-12 | $7700.00 | Window Closed / Lapsed |