US3883994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Profile grinding apparatus
Assignee: Individual
•
Filing: 1973-11-12
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Granted: 1975-05-20
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Expires: 1993-11-12
Abstract
Abstract A precision profile machine for making tools and dies for the metal and woodworking industries including a grinding head pivotally displaceable at least 180* so as to be selectively positioned above or below the work piece. The grinding wheel spindle and the tracing stylus remain in alignment with each other during pivotable displacement of the grinding wheel to positions above or below the work piece.
Inventors
- 👤 Charles L Dellinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:15
CPC Classifications
B; B24; B24B; B24B17/00; Y; Y10; Y10T; Y10T29/00; Y10T29/50; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/302968
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
124 words
A machine for shaping a surface of a work piece comprising; a base structure, a support frame mounted upon said base structure, a head assembly displaceable upon said support frame, a work table for supporting a work piece, a shaping tool having an axial shaft mounted in said head assembly and adapted to be placed in working relation to a work piece, follower means mounted upon said support frame and adapted to engage a template attached to the work piece, said follower means including an axially aligned stylus displaceable with said shaping tool, means mounting said head assembly for rotation between positions above and below a work piece located upon said work table, and means for axially moving said tool independently of said stylus.
Claim 2
Dependent Claim
124 words
A machine for shaping a surface of a work piece comprising; a base structure, a support frame mounted upon said base structure, a head assembly displaceable upon said support frame, a work table for supporting a work piece, a shaping tool having an axial shaft mounted in said head assembly and adapted to be placed in working relation to a work piece, follower means mounted upon said support frame and adapted to engage a template attached to the work piece, said follower means including an axially aligned stylus displaceable with said shaping tool, means mounting said head assembly for rotation between positions above and below a work piece located upon said work table, and means for axially moving said tool independently of said stylus.
Claim 3
Dependent Claim
24 words
A machine as recited in claim 1, and further including means adjustably mounted said head assembly and said follower means upon said support frame.
Claim 4
Dependent Claim
30 words
A machine as recited in claim 1, wherein said support frame is capable of rotation to simultaneously displace said head assembly and said follower means relative to said base structure.
Claim 5
Dependent Claim
29 words
A machine as recited in claim 3, wherein said stylus and said shaping tool are maintained in axial alignment during rotation of said head assembly and said follower means.
Claim 6
Dependent Claim
24 words
A machine as recited in claim 1, and further including means for oscillating said head assembly and shaping tool relative to said support frame.
Claim 7
Dependent Claim
24 words
A machine as recited in claim 5, and further including a balancing assembly for intermittently applying a biasing force to said oscillating head assembly.
Claim 8
Dependent Claim
21 words
A machine as recited in claim 6, and further including means for releasably securing said balancing means upon said support frame.
Claim 9
Dependent Claim
32 words
A machine as recited in claim 1, and further including means for effecting rotation of said work table upon rotation of said head assembly between locations above or below said work table.
Claim 10
Dependent Claim
37 words
A machine as recited in claim 8, wherein said means for effecting rotation of said work table includes means for angularly adjusting said work table relative to said base structure, said support frame and said head assembly.
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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |