US3650075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical profile grinders
Assignee: Wickman Machine Tool Sales Ltd
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Filing: 1970-02-10
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Granted: 1972-03-21
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Expires: 1990-02-10
Abstract
Abstract An optical profile grinding machine comprising a workpiece support, a grinding wheel support and means for producing relative movement between the grinding wheel and a workpiece, a platform supporting an enlarged layout of a profile to be reproduced on the workpiece, a microscope for viewing the layout through a reducing lens and the grinding wheel in superimposed relationship so that an operator can reproduce the profile on the workpiece.
Inventors
- 👤 Peter Alan Mason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:58
CPC Classifications
B; B24; B24B; B24B49/00; B24B49/12; B24B17/00; B24B17/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
93 words
An optical profile grinding machine comprising in combination, a workpiece support, apparatus for supporting a grinding wheel, means for producing relative movement between the grinding wheel and the workpiece, a platform for supporting an enlarged layout of a profile to be reproduced on the workpiece, a microscope having an eye piece and an objective lens, for viewing the workpiece and grinding wheel and further optical elements whereby an image of the layout on the platform can be reduced and superimposed upon the image of the workpiece and grinding wheel visible through the microscope.
Claim 2
Dependent Claim
93 words
An optical profile grinding machine comprising in combination, a workpiece support, apparatus for supporting a grinding wheel, means for producing relative movement between the grinding wheel and the workpiece, a platform for supporting an enlarged layout of a profile to be reproduced on the workpiece, a microscope having an eye piece and an objective lens, for viewing the workpiece and grinding wheel and further optical elements whereby an image of the layout on the platform can be reduced and superimposed upon the image of the workpiece and grinding wheel visible through the microscope.
Claim 3
Dependent Claim
62 words
An optical profile grinding machine as claimed in claim 1 in which the further optical elements include a reducing lens through which an image of the layout is transmitted, a prism on which the reduced image of the layout is reflected and through which the image of the workpiece is visible through the microscope at the same scale as the layout image.
Claim 4
Dependent Claim
32 words
An optical profile grinding machine as claimed in claim 2 in which the prism comprises two elements arranged in face to face contact, the interface of such elements forming the reflecting surface.
Claim 5
Dependent Claim
28 words
An optical profile grinding machine as claimed in claim 2 in which the image of the layout is reflected in a mirror before passing through the reducing lens.
Claim 6
Dependent Claim
32 words
An optical profile grinding machine as claimed in claim 1 in which the microscope has means for adjusting its position to allow viewing of different portions of the workpiece and layout images.
Claim 7
Dependent Claim
29 words
An optical profile grinding machine as claimed in claim 1 In which optical elements of the microscope include a pair of eyepiece lenses, a prism and the objective lens.
Claim 8
Dependent Claim
29 words
An optical profile grinding machine as claimed in claim 1 in which the optical elements of the microscope includes a single eyepiece lens, a prism and the objective lens.
Claim 9
Dependent Claim
37 words
An optical profile grinding machine as claimed in claim 1 in which a light source is disposed at the opposite side of the workpiece and grinding wheel, from said further optical elements, to illuminate the workpiece profile.
Claim 10
Dependent Claim
83 words
An optical profile grinding machine as claimed in claim 2 in which the prism is provided with a surface through which light transmitted from a light source can be transmitted, said prism having a further internally reflecting surface arranged to reflect light from said source onto the surface at which the layout is reflected, and said light being reflected in a direction to illuminate the workpiece, said direction of reflection being coincident the direction from which the workpiece is viewed by an operator.
Claim 11
Dependent Claim
24 words
An optical profile grinding machine as claimed in claim 1 in which the grinding wheel support apparatus is adjustable in a plurality of directions.
Claim 12
Dependent Claim
22 words
An optical profile grinding machine as claimed in claim 1 in which the workpiece support is adjustable in a plurality of directions.
Claim 13
Dependent Claim
36 words
An optical profile grinding machine as claimed in claim 1 in which the image of the layout passes through a reducing lens which is replaceable to permit changes in the reduction of the image created thereby.
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) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |