Patent US4034515A successfully refreshed from Google Patents.
US4034515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertical grinder
Assignee: Individual
•
Filing: 1976-04-19
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Granted: 1977-07-12
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Expires: 1996-04-19
Abstract
Abstract A vertical grinder wherein at least two rotating grinding tanks are provided on a horizontally movable bed body, vertically movable and rotatable rotary tanks containing grinding materials respectively for coarse, medium and lustrous finishes are arranged in parallel with them, a vertically movable main spindle is provided above one of said rotary tanks and a plurality of collect chucks are made rotatable and are suspended with a work fitted on the peripheral edge of the lower end surface of said main spindle and are inserted in turn into said rotary tanks respectively for coarse, medium and lustrous finishes to grind the work.
Inventors
- 👤 Ietatsu Ohno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:19
CPC Classifications
B; B24; B24B; B24B31/00; B24B31/003
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
65 words
A vertical grinder comprising a bed body movable in the horizontal direction, a plurality of grinding tanks containing respectively different kinds of grinding materials and arranged in parallel on said bed body, a vertically movable main spindle provided above the grinding tanks and at least one collet chuck rotatably provided on the lower end surface of said main spindle so as to fit a work.
Claim 2
Dependent Claim
65 words
A vertical grinder comprising a bed body movable in the horizontal direction, a plurality of grinding tanks containing respectively different kinds of grinding materials and arranged in parallel on said bed body, a vertically movable main spindle provided above the grinding tanks and at least one collet chuck rotatably provided on the lower end surface of said main spindle so as to fit a work.
Claim 3
Dependent Claim
21 words
The grinder according to claim 1 wherein said grinding tanks are rotatable by a drive unit provided in said bed body.
Claim 4
Dependent Claim
47 words
The grinder according to claim 1 wherein said bed body has a body frame having grooves for moving the bed body and having a pair of supporting columns erected at both ends and said main spindle is fitted to a movable column guided by said supporting columns.
Claim 5
Dependent Claim
17 words
The grinder according to claim 1 wherein said collet chucks suspend a work by a vacuum attraction.
Claim 6
Dependent Claim
30 words
The grinder according to claim 1 wherein a container of a work is set at a setting service station arranged in parallel with said grinding tank on said body bed.
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) | 1980-07-11 | 1981-01-10 | 1981-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-11 | 1985-01-10 | 1985-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-11 | 1989-01-10 | 1989-07-12 | $7700.00 | Window Closed / Lapsed |