US4324050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scale magnifier
Assignee: Individual
•
Filing: 1980-02-11
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Granted: 1982-04-13
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Expires: 2000-02-11
Abstract
Abstract A magnifier for facilitating visual perception of scale markings on a scale, such as an engineer's scale, includes a magnifying element and a mounting attachment for supporting the magnifying element above the scale. The mounting attachment also includes a pivot connection for permitting selective tilting of the magnifying element about a pivot axis extending generally parallel to the longitudinal axis of the scale. The mounting attachment further permits manual shifting of the magnifier in directions generally paralleling the longitudinal axis of the scale.
Inventors
- 👤 John R. Weir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:03
CPC Classifications
G; G02; G02B; G02B25/00; G02B25/002; G02B25/005; G01; G01B; G01B3/00; G01B3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A magnifier for facilitating visual perception of scale markings on an engineer's scale having three apexes comprising: a mount including legs which detachably engage the scale with portions extending above a first one of the apexes and joining to form a sleeve means; a magnifying element connected to said mount so that it spans across the first apex, said magnifying element being dimensioned to extend laterally above the viewable scale markings adjacent the other two apexes; and pivot means interconnecting said mount and said magnifying element by being rotatably accepted in said sleeve means, said pivot means being disposed above the first apex, when said mount engages the scale and defining a pivot axis which extends generally parallel to the longitudinal axis of the scale and above the first apex so that said magnifying element may be tilted via said sleeve means and pivot means in a selected one of two directions about the pivot axis and above the first apex to enable magnification of a selected one of the viewable scale markings adjacent the other two apexes.
Claim 2
Dependent Claim
178 words
A magnifier for facilitating visual perception of scale markings on an engineer's scale having three apexes comprising: a mount including legs which detachably engage the scale with portions extending above a first one of the apexes and joining to form a sleeve means; a magnifying element connected to said mount so that it spans across the first apex, said magnifying element being dimensioned to extend laterally above the viewable scale markings adjacent the other two apexes; and pivot means interconnecting said mount and said magnifying element by being rotatably accepted in said sleeve means, said pivot means being disposed above the first apex, when said mount engages the scale and defining a pivot axis which extends generally parallel to the longitudinal axis of the scale and above the first apex so that said magnifying element may be tilted via said sleeve means and pivot means in a selected one of two directions about the pivot axis and above the first apex to enable magnification of a selected one of the viewable scale markings adjacent the other two apexes.
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) | 1985-04-12 | 1985-10-12 | 1986-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-12 | 1989-10-12 | 1990-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-12 | 1993-10-12 | 1994-04-13 | $7700.00 | Window Closed / Lapsed |