US3815201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for manufacturing a gear wheel
Assignee: Teleflex Inc
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Filing: 1973-06-18
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Granted: 1974-06-11
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Expires: 1993-06-18
Abstract
Abstract This disclosure relates to a gear wheel and method for making the same which is used in an assembly including a flexible motion transmitting core element utilized to transmit motion in a curved path. The gear wheel includes a circular metal wheel comprised of two substantially identical metal halves mated together to define a peripheral groove with helical teeth disposed therein for engaging helical windings on the core element and a plastic hub portion molded partially about the circular metal wheel including an axial bore therethrough for receiving a support member or drive shaft.
Inventors
- 👤 W Conrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:36
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/14; B21; B21D; B21D53/00; B21D53/26; B21D53/28; F; F16; F16H; F16H55/00; F16H55/32; F16H55/36; F16H55/50; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49462; Y10T29/49467; Y10T29/4948; Y10T29/4998
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
76 words
A method for manufacturing a gear wheel comprising the steps of forming at least two metal sections of substantially identical shape and shaping helical gear teeth in a concave depression on the peripheries thereof; mating and joining said sections to cause said gear teeth in each of said sections to be aligned with said gear teeth in the other of said sections, and molding a plastic hub member partially about said sections to support said sections.
Claim 2
Independent Claim
76 words
A method for manufacturing a gear wheel comprising the steps of forming at least two metal sections of substantially identical shape and shaping helical gear teeth in a concave depression on the peripheries thereof; mating and joining said sections to cause said gear teeth in each of said sections to be aligned with said gear teeth in the other of said sections, and molding a plastic hub member partially about said sections to support said sections.
Claim 3
Dependent Claim
36 words
The method as set forth in claim 1 wherein forming is further defined as rotating at least a portion of a tool to simultaneously form said sections and form said helical teeth on the periphery thereof.
Claim 4
Dependent Claim
35 words
The method as set forth in claim 2 wherein forming is further defined as simultaneously forming alignment means including at least one protrusion and depression on the mating surfaces of each of said metal sections.
Claim 5
Dependent Claim
22 words
The method as set forth in claim 1 wherein said joining is further defined as permanently bonding said two metal sections together.
Claim 6
Dependent Claim
19 words
The method as set forth in claim 4 wherein bonding is defined as brazing said two metal sections together.
Claim 7
Independent Claim
89 words
A method for manufacturing a gear wheel assembly of the type used for moving a motion transmitting element comprising the steps of stamping with a stamping tool at least two substantially identical metal gear halves and forming arcuate grooves defining helical gear teeth in a concave depression on the peripheries thereof by substantially simultaneously rotating said stamping tool; and mating and joining said halves whereby said gear teeth in each of said metal gear halves are aligned with the gear teeth in the other of saId metal gear halves.
Claim 8
Independent Claim
89 words
A method for manufacturing a gear wheel assembly of the type used for moving a motion transmitting element comprising the steps of stamping with a stamping tool at least two substantially identical metal gear halves and forming arcuate grooves defining helical gear teeth in a concave depression on the peripheries thereof by substantially simultaneously rotating said stamping tool; and mating and joining said halves whereby said gear teeth in each of said metal gear halves are aligned with the gear teeth in the other of saId metal gear halves.
References Cited (Backward Citations)
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US3429700A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |