US3762013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball assembly of an indexing device
Assignee: SHINPO INDUSTRIAL CO Ltd
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Filing: 1972-07-10
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Granted: 1973-10-02
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Expires: 1992-07-10
Abstract
Abstract A ring member of high hardness and a ring member of low hardness are combined. A row of balls as indexing elements are forcibly fitted between the two ring members. Basic surfaces are provided on the side of the ring member of high hardness. Indentations due to the forced fitting of the balls are created on the ring member of low hardness only.
Inventors
- 👤 M Irie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:24
CPC Classifications
F; F16; F16D; F16D71/00; F16D71/04; B; B23; B23Q; B23Q16/00; B23Q16/02; B23Q16/021; Y; Y10; Y10T; Y10T74/00; Y10T74/14; Y10T74/1476
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
Ball assembly of an indexing device wherein steel balls are used as indexing elements, comprising a ring member of high hardness, a ring member of low hardness and a row of balls forcibly fitted between the above two ring members, basic surfaces for determining the accurate positioning of the balls being provided on the ring member of high hardness and identations due to the forced fitting of the balls being created on the ring member of low hardness only.
Claim 2
Dependent Claim
79 words
Ball assembly of an indexing device wherein steel balls are used as indexing elements, comprising a ring member of high hardness, a ring member of low hardness and a row of balls forcibly fitted between the above two ring members, basic surfaces for determining the accurate positioning of the balls being provided on the ring member of high hardness and identations due to the forced fitting of the balls being created on the ring member of low hardness only.
References Cited (Backward Citations)
US3116543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |