US4261106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a linear digital scale
Assignee: Mitutoyo Manufacturing Co Ltd
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Filing: 1979-05-31
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Granted: 1981-04-14
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Expires: 1999-05-31
Abstract
Abstract A linear digital scale including an extended linear digital scale made up with a plurality of relatively small digital scale pieces which are connected and fixed together, and its manufacturing method in which graduation coincidence by use of a standard scale removes the errors produced at bound and fixed sections.
Inventors
- 👤 Kinji Takizawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:02
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/26; G01D5/32; G01D5/34; G01D5/347; G01D5/34707; G01B; G01B11/00; G01B11/02; G01D5/34746; G01D5/34753; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49895; Y10T29/49902
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
125 words
A method of manufacturing a long, linear digital scale comprising the steps of: placing at least two linear scale pieces longitudinally with one end of each of said two linear scale pieces adjacent to each other on a flat surface; providing a linear scale superposed to said two linear scale pieces and overlapping said two adjacent ends of said linear scale pieces; moving one of said linear scale pieces longitudinally until scale graduations on said one linear scale piece coincide with scale graduations on said superposed linear scale; moving another of said two linear scale pieces longitudinally until scale graduations on said another linear scale piece coincide with said scale graduations on said superposed linear scale; and permanently fixing said two linear scale pieces together.
Claim 2
Independent Claim
125 words
A method of manufacturing a long, linear digital scale comprising the steps of: placing at least two linear scale pieces longitudinally with one end of each of said two linear scale pieces adjacent to each other on a flat surface; providing a linear scale superposed to said two linear scale pieces and overlapping said two adjacent ends of said linear scale pieces; moving one of said linear scale pieces longitudinally until scale graduations on said one linear scale piece coincide with scale graduations on said superposed linear scale; moving another of said two linear scale pieces longitudinally until scale graduations on said another linear scale piece coincide with said scale graduations on said superposed linear scale; and permanently fixing said two linear scale pieces together.
Claim 3
Dependent Claim
27 words
A method of manufacturing a long, linear digital scale according to claim 1 wherein said linear scale pieces are moved utilizing a micrometer type precision transfer instrument.
Claim 4
Independent Claim
28 words
A method of manufacturing a long, linear digital scale according to claims 1 or 2 wherein said two linear scale pieces are fixed together utilizing a binding agent.
Claim 5
Independent Claim
38 words
A method of manufacturing a long, linear digital scale according to claims 1 or 2 wherein said two linear scale pieces are fixed together utilizing a reinforcing board along at least one side of said linear scale pieces.
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) | 1984-04-13 | 1984-10-13 | 1985-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-13 | 1988-10-13 | 1989-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-13 | 1992-10-13 | 1993-04-14 | $7700.00 | Window Closed / Lapsed |