Patent US3673694A successfully refreshed from Google Patents.
US3673694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Setting device for a boring tool
Assignee: Individual
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Filing: 1970-03-26
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Granted: 1972-07-04
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Expires: 1990-03-26
Abstract
Abstract This specification discloses a fixture suitable for use in machine shops for setting boring tools for boring holes to accurate dimensions. The fixture has a frame on which a dial indicator is supported in position spaced from a plunger. A rocking bar is supported on a fulcrum between the indicator and the plunger. The distance from the dial indicator point to the fulcrum is twice the distance from the plunger to the fulcrum. The fixture base has pads on it suitable to be supported on a machine table.
Inventors
- 👤 Robert Adam
- 👤 Dayle Keefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:14
CPC Classifications
B; B23; B23Q; B23Q17/00; B23Q17/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
151 words
A fixture comprising a frame, said frame having a base and a beam disposed generally parallel to said base and rigidly fixed to said base, means on said base for supporting it on a machine table, a dial indicator, a plunger reciprocably supported in said frame, a post fixed on said base, said dial indicator being supported on said post at a position spaced from said plunger, an axle on said base swingably supporting said beam, a point on said dial indicator and a point on said plunger, said points engaging said beam, the space between said plunger point of said dial indicator and said axle being twice as great as the distance from said point on said plunger to said axle, said plunger having a top thereon adapted to be engaged by a test bar whereby the dial indicator will indicate twice the magnitude of the movement of said plunger.
Claim 2
Dependent Claim
151 words
A fixture comprising a frame, said frame having a base and a beam disposed generally parallel to said base and rigidly fixed to said base, means on said base for supporting it on a machine table, a dial indicator, a plunger reciprocably supported in said frame, a post fixed on said base, said dial indicator being supported on said post at a position spaced from said plunger, an axle on said base swingably supporting said beam, a point on said dial indicator and a point on said plunger, said points engaging said beam, the space between said plunger point of said dial indicator and said axle being twice as great as the distance from said point on said plunger to said axle, said plunger having a top thereon adapted to be engaged by a test bar whereby the dial indicator will indicate twice the magnitude of the movement of said plunger.
Claim 3
Dependent Claim
41 words
The fixture recited in claim 1 wherein said means on the bottom of said frame are pads for supporting said frame on said machine table, and the side edges of said frame comprise surfaces perpendicular to said bottom of said pads.
Claim 4
Dependent Claim
18 words
The machine recited in claim 1 wherein said plunger is slidably received in an opening in said beam.
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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |