US4164098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding wheel
Assignee: Individual
•
Filing: 1977-09-13
•
Granted: 1979-08-14
•
Expires: 1997-09-13
Abstract
Abstract A grinding wheel in which at least one core material of open-mesh fabric woven of glass fiber yarn and at least one core material of floral design made by forming glass fiber yarn in floral pattern of long and short petals are embedded as reinforcing core materials.
Inventors
- 👤 Hiroshi Akita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:58
CPC Classifications
B; B24; B24D; B24D7/00; B24D7/02; B24D7/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
144 words
An offset grinding wheel for grinding on a radial face thereof comprising abrasive grains, at least one reinforcing core, said at least one reinforcing core comprising an open mesh fabric of fibreglass cord, a central opening, at least one reinforcing network, said abrasive grains and reinforcing core and reinforcing network all bonded in a resinous bonding material, and said reinforcing network comprising yarn of fibreglass, said network further comprising a symmetrical radial pattern of long segments and short segments, each said segment including an apex and arms, said arms tangent to the central opening of said grinding wheel, said arms being straight, the apices of said long segments and said short segments diametrically apposed, said long segments equal to approximately eighty percent of the radius of said grinding wheel, said short segments equal to approximately sixty percent of the radius of said grinding wheel.
Claim 2
Dependent Claim
144 words
An offset grinding wheel for grinding on a radial face thereof comprising abrasive grains, at least one reinforcing core, said at least one reinforcing core comprising an open mesh fabric of fibreglass cord, a central opening, at least one reinforcing network, said abrasive grains and reinforcing core and reinforcing network all bonded in a resinous bonding material, and said reinforcing network comprising yarn of fibreglass, said network further comprising a symmetrical radial pattern of long segments and short segments, each said segment including an apex and arms, said arms tangent to the central opening of said grinding wheel, said arms being straight, the apices of said long segments and said short segments diametrically apposed, said long segments equal to approximately eighty percent of the radius of said grinding wheel, said short segments equal to approximately sixty percent of the radius of said grinding wheel.
Claim 3
Dependent Claim
11 words
The invention of claim 1 including a plurality of reinforcing cores.
Claim 4
Dependent Claim
11 words
The invention of claims 1 including a plurality of reinforcing networks.
Claim 5
Dependent Claim
11 words
The invention of claim 2 including a plurality of reinforcing networks.
Claim 6
Dependent Claim
13 words
The invention of claim 1 wherein said reinforcing network comprises a continuous yarn.
References Cited (Backward Citations)
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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) | 1982-08-13 | 1983-02-12 | 1983-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-08-13 | 1987-02-12 | 1987-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-08-13 | 1991-02-12 | 1991-08-14 | $7700.00 | Window Closed / Lapsed |