US3811226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knife grinding and honing machine
Assignee: Individual
•
Filing: 1972-12-19
•
Granted: 1974-05-21
•
Expires: 1992-12-19
Abstract
Abstract A pair of generally parallel shafts are supported from a base for simultaneous and equal inverse lateral shifting toward and away from each other and the shafts each include a plurality of grinding wheels mounted thereon for rotation therewith. The grinding wheels of one shaft may be overlapped in relation to the grinding wheels of the other shaft as the shafts are shifted toward each other and spring structure is provided and yieldingly urges the shafts toward each other. Adjustable abutment structure is provided for limiting movement of one of the shafts toward the other and a rotary motor is drivingly connected to the shafts for equally rotating the latter in opposite directions.
Inventors
- 👤 H Beyer
- 👤 F Gangelhoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:32
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/36; B24B3/54
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
73 words
A knife grinding and honing machine comprising a base, two generally parallel shafts, means supporting the shafts from the base for simultaneous inverse lateral shifing toward and away from each other, means yieldingly urging said shafts toward each other, means adjustably limiting movement of at least one of said shafts toward the other, said shafts having grinding wheels mounted thereon including overlapped outer peripheral portions, and motor means drivingly connected to said shafts.
Claim 2
Dependent Claim
73 words
A knife grinding and honing machine comprising a base, two generally parallel shafts, means supporting the shafts from the base for simultaneous inverse lateral shifing toward and away from each other, means yieldingly urging said shafts toward each other, means adjustably limiting movement of at least one of said shafts toward the other, said shafts having grinding wheels mounted thereon including overlapped outer peripheral portions, and motor means drivingly connected to said shafts.
Claim 3
Dependent Claim
25 words
The combination of claim 1 wherein said shafts are oscillatable about generally parallel axes spaced to one side of a plane containing the first-mentioned axes.
Claim 4
Dependent Claim
48 words
The combination of claim 1 wherein said means supporting the shafts for simultaneous inverse lateral shifting toward and away from each other include means enabling the shafts to be sufficiently shifted away from each other to cause the grinding wheels mounted thereon to move out of overlapped relation.
Claim 5
Dependent Claim
20 words
The combination of claim 1 wherein each of said shafts has a plurality of axially spaced grinding wheels mounted thereon.
Claim 6
Dependent Claim
25 words
The combination of claim 1 wherein said motor means is drivingly connected to said shafts for rotating the latter equally in opposite directions of rotation.
Claim 7
Dependent Claim
20 words
The combination of claim 5 wherein each of said shafts has a pluraality of axially spaced grinding wheels mounted thereon.
Claim 8
Dependent Claim
48 words
The combination of claim 6 wherein said means supporting the shafts for simultaneous inverse lateral shifting toward and away from each other include means enabling the shafts to be sufficiently shifted away from each other to cause the grinding wheels mounted thereon to move out of overlapped relation.
Claim 9
Dependent Claim
25 words
The combination of claim 7 wherein said shafts are oscillatable about generally parallel axes spaced to one side of a plane containing the first-mentioned axes.
Claim 10
Dependent Claim
27 words
The combination of claim 8 wherein said motor means includes means for infinitely varying the speed of rotation of said shafts between predetermined low and high speeds.
References Cited (Backward Citations)
US631842A
Cited
US1370381A
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US1180727A
Cited
US2228385A
Cited
US2482633A
Cited
US2617235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |