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US3740904A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of honing gear teeth with a resilient worm shaped hone

Assignee: Koshifuji Tekkosho K K
•
Filing: 1971-10-28
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Granted: 1973-06-26
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Expires: 1991-10-28
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Abstract

Abstract A worm-shape or screw-shape hone, for honing gear teeth, has the tooth profile of the basic rack at its normal plane. The hone is formed by molding synthetic polymers in which there are dispersed abrasive particles, to provide a Shore hardness of 15* - 75* and a Young''s modulus 0.5 - 70 X 103 kg/cm2. The hone is engaged with the gear to be finished and is rotated by a motor with the hone driving the gear. During honing of the gear, the hone is fed parallel to the axis or tooth trace of the gear over the whole face width of the gear. The polymer material may comprise a cocured blend of polyurethane rubber and epoxy resin having a suitable flexibility, good resiliency and high abrasion resistance, and the abrasive particles may comprise alundum or carborundum, the abrasive particles being exposed at the working surface of the hone.

Inventors

  • 👤 M Ainoura

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 05:09
CPC Classifications
B; B23; B23F; B23F21/00; B23F21/03; B23F21/035; B23F19/00; B23F19/05; B23F19/052; B23F23/00; B23F23/10; B24; B24D; B24D18/00

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 34 words
A method of honing gear teeth with a worm-shaped hone, as claimed in claim 1, in which, during honing of the gear, the center distance between said hone and said gear is maintained constant.
Claim 2
Dependent Claim 31 words
A method of honing gear teeth with a worm-shaped hone, as claimed in claim 1, in which, during honing, the center distance between said hone and said gear is varied slightly.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-06-25 1976-12-25 1977-06-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-06-25 1980-12-25 1981-06-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-06-25 1984-12-25 1985-06-26 $7700.00 Window Closed / Lapsed

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