US4335516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power driven micrometer
Assignee: Newport Stratford Inc
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Filing: 1980-03-24
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Granted: 1982-06-22
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Expires: 2000-03-24
Abstract
Abstract A power driven micrometer for engaging a workpiece surface has a rotatable screw and a motor for rotatingly driving the screw. The screw and motor are secured together for longitudinal travel as a unit, the screw being threadedly engaged and supported by a nut in the micrometer casing. A key precludes rotation of the motor relative to the casing while enabling longitudinal travel of the motor relative to the casing.
Inventors
- 👤 Arthur Edelstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:23
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/18
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
133 words
A power driven micrometer for engaging a workpiece surface comprising: (A) a support; (B) nut means secured to said support; (C) rotatable screw means threadedly engaged by and supported by said nut means; (D) means operatively connected to said screw means for rotatingly driving said screw means, said drive means and said screw means being secured together for longitudinal travel as a unit; (E) engaging means operatively secured to said unit for longitudinal travel therewith and for operatively engaging said workpiece; and (F) keying means for precluding rotation of said drive means relative to said support while enabling longitudinal travel of said drive means relative to said support; whereby rotation of said screw means relative to said nut means results in longitudinal travel of said screw means/drive means unit relative to said support.
Claim 2
Dependent Claim
133 words
A power driven micrometer for engaging a workpiece surface comprising: (A) a support; (B) nut means secured to said support; (C) rotatable screw means threadedly engaged by and supported by said nut means; (D) means operatively connected to said screw means for rotatingly driving said screw means, said drive means and said screw means being secured together for longitudinal travel as a unit; (E) engaging means operatively secured to said unit for longitudinal travel therewith and for operatively engaging said workpiece; and (F) keying means for precluding rotation of said drive means relative to said support while enabling longitudinal travel of said drive means relative to said support; whereby rotation of said screw means relative to said nut means results in longitudinal travel of said screw means/drive means unit relative to said support.
Claim 3
Dependent Claim
20 words
The micrometer of claim 1, wherein said support comprises a casing and said drive means is disposed within said casing.
Claim 4
Dependent Claim
25 words
The micrometer of claim 2, wherein said nut means supports said screw means and drive means with said drive means spaced inwardly from said casing.
Claim 5
Dependent Claim
59 words
The micrometer of claim 2, wherein said casing defines a longitudinal slot therein and wherein said keying means has a first portion secured to said drive means and a second portion adapted to travel longitudinally within said slot and be visible from outside of said casing, thereby to show the relative position of said drive means within said casing.
Claim 6
Dependent Claim
46 words
The micrometer of claim 1, wherein said keying means comprises a longitudinal slot in said support and a key, said key having a first portion secured to said drive means and a second portion disposed within said slot, thereby to preclude rotation of said drive means.
Claim 7
Dependent Claim
27 words
The micrometer of claim 5, wherein said engaging means comprises a portion of said keying means extending through and beyond said slot to engage the workpiece surface.
Claim 8
Dependent Claim
22 words
The micrometer of claim 1, wherein said engaging means comprises a portion of said screw means adapted to engage the workpiece surface.
Claim 9
Dependent Claim
22 words
The micrometer of claim 1, wherein said engaging means comprises a portion of said keying means adapted to engage the workpiece surface.
Claim 10
Dependent Claim
12 words
The micrometer of claim 1, wherein said drive means comprises a motor.
Claim 11
Dependent Claim
101 words
A power driven micrometer for engaging a work piece comprising: a housing having a threaded aperture receiving and engaging screw means; drive means for rotating said screw means, said drive means being secured to said screw means for longitudinal travel as a unit in said housing; means for engaging said workpiece operatively secured with respect to said unit for longitudinal travel therewith; and means for precluding rotation of said drive means relative to said housing while enabling longitudinal travel of said drive means relative to said support to provide longitudinal travel of said engaging means upon rotation of said screw means.
Claim 12
Dependent Claim
101 words
A power driven micrometer for engaging a work piece comprising: a housing having a threaded aperture receiving and engaging screw means; drive means for rotating said screw means, said drive means being secured to said screw means for longitudinal travel as a unit in said housing; means for engaging said workpiece operatively secured with respect to said unit for longitudinal travel therewith; and means for precluding rotation of said drive means relative to said housing while enabling longitudinal travel of said drive means relative to said support to provide longitudinal travel of said engaging means upon rotation of said screw means.
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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) | 1985-06-21 | 1985-12-21 | 1986-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-21 | 1989-12-21 | 1990-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-21 | 1993-12-21 | 1994-06-22 | $7700.00 | Window Closed / Lapsed |