US3596413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrading tool chip extractor and remover
Assignee: Individual
•
Filing: 1969-11-26
•
Granted: 1971-08-03
•
Expires: 1989-11-26
Abstract
Abstract A system for removing metal chips from a driven endless abrading tool to prolong the useful life of the tool. A magnet is provided to extract loosely clinging chips from the abrasive surface to remove the chips of the tool before the chips are ironed into such abrading tool by further abrading contact with a workpiece. A wind tunnel is provided and is in part formed by the magnet, and the abrasive surface of the tool, and an air stream passing through the tunnel exerts a force greater than the magnetically attractive force of the magnet to preclude the accumulation of chips on the magnet.
Inventors
- 👤 Donald R Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:45
CPC Classifications
B; B24; B24B; B24B53/00; B24B53/007; B24B53/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
96 words
In abrading apparatus, a driven abrading tool to abrade chips from a workpiece of magnetic material wherein at least some of the chips cling to the abrading surface of the tool, at least one permanent magnet disposed proximate the abrading surface of said tool to extract chips therefrom magnetically, and a member overlying the abrading surface of said tool and cooperating therewith to define an restricting passage wherein an air stream generated by the operation of said tool exerts a force greater than the magnetic force of said magnet to deflect the chips from said magnet.
Claim 2
Dependent Claim
96 words
In abrading apparatus, a driven abrading tool to abrade chips from a workpiece of magnetic material wherein at least some of the chips cling to the abrading surface of the tool, at least one permanent magnet disposed proximate the abrading surface of said tool to extract chips therefrom magnetically, and a member overlying the abrading surface of said tool and cooperating therewith to define an restricting passage wherein an air stream generated by the operation of said tool exerts a force greater than the magnetic force of said magnet to deflect the chips from said magnet.
Claim 3
Dependent Claim
25 words
In abrading apparatus as defined by claim 1 wherein said magnet is mounted on said member and has pole pieces exposed to the air stream.
Claim 4
Dependent Claim
21 words
In abrading apparatus as defined by claim 1 wherein said member is a head having a channeled face receiving said tool.
Claim 5
Dependent Claim
16 words
In abrading apparatus as defined by claim 3 wherein said pole forms in part said tunnel.
Claim 6
Dependent Claim
31 words
In abrading apparatus as defined by claim 1, the addition of a source of pressurized fluid directed into said tunnel in the direction of the air stream generated by said tool.
Claim 7
Dependent Claim
16 words
In abrading apparatus as defined by claim 1 wherein said abrading tool is a sanding belt.
Claim 8
Dependent Claim
16 words
In abrading apparatus as defined by claim 1 wherein said abrading tool is a grinding wheel.
References Cited (Backward Citations)
US3123951A
Cited
US3123950A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |