Patent US3779548A successfully refreshed from Google Patents.
US3779548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Finger-training apparatus
Assignee: Individual
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Filing: 1972-09-27
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Granted: 1973-12-18
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Expires: 1992-09-27
Abstract
Abstract A finger-training apparatus, comprising a grip portion and a forked portion formed in connection with the grip portion. The forked portion includes two spaced arms which support a couple of juxtaposed rollers rotatable therebetween. Gears interconnect the rollers whereby rotation of one of the rollers in one direction will cause synchronous rotation of the other roller in an opposite direction.
Inventors
- 👤 A Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:24
CPC Classifications
A; A63; A63B; A63B23/00; A63B23/035; A63B23/12; A63B23/16
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
96 words
A finger-training apparatus, comprising a grip portion shaped to be held by one hand of a human, a forked roller supporting portion including two spaced arms, two rollers positioned between said spaced arms and rotatably journalled thereto, means connecting said rollers whereby rotation of one of said rollers in one direction will cause synchronous rotation of the other roller in an opposite direction, and means connecting said grip portion and said roller supporting portion whereby at least one finger of the hand which grasps said grip portion may engage and digitally rotate one of said rollers.
Claim 2
Dependent Claim
96 words
A finger-training apparatus, comprising a grip portion shaped to be held by one hand of a human, a forked roller supporting portion including two spaced arms, two rollers positioned between said spaced arms and rotatably journalled thereto, means connecting said rollers whereby rotation of one of said rollers in one direction will cause synchronous rotation of the other roller in an opposite direction, and means connecting said grip portion and said roller supporting portion whereby at least one finger of the hand which grasps said grip portion may engage and digitally rotate one of said rollers.
Claim 3
Dependent Claim
23 words
A finger-training apparatus as set forth in claim 1 characterized in that said rollers have axes of rotation extending obliquely to each other.
Claim 4
Dependent Claim
20 words
A finger-training apparatus as set forth in claim 1 characterized in that said means connecting said rollers are intermeshing gears.
Claim 5
Dependent Claim
27 words
A finger-training apparatus as set forth in claim 1, characterized in that said rollers provide therearound means for facilitating engagement of the fingertips with the roller surfaces.
References Cited (Backward Citations)
AT109810B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |