US3730009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite drive wheel
Assignee: Borg Warner Corp
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Filing: 1971-12-15
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Granted: 1973-05-01
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Expires: 1991-12-15
Abstract
Abstract Composite drive wheel devices are disclosed herein to provide illustrations of this invention. These wheels include a stamped circular plate having tooth roots on the periphery thereof with a plastic toothed rim molded over the tooth roots.
Inventors
- 👤 R Mead
- 👤 G Zimmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:48
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/02; F16H55/06; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19893; Y10T74/19949; Y10T74/19963; Y10T74/19967
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
116 words
A composite drive wheel device comprising a drive wheel plate, having an arcuate periphery and a peripheral flange, the outer portion of said flange extending through the plane of the drive wheel plate, a separate tooth root flange ribbon, said tooth root ribbon being corrugated and axially open with alternate radially outwardly extending tooth roots and radially inwardly extending portions, said radially inwardly extending portions being secured to the peripheral flange of said plate, and a plastic rim secured on said tooth root flange ribbon and to said outer portion of said flange, said plastic rim having radially outwardly extending teeth respectively and complementally positioned over and around the teeth of said tooth root flange ribbon.
Claim 2
Dependent Claim
116 words
A composite drive wheel device comprising a drive wheel plate, having an arcuate periphery and a peripheral flange, the outer portion of said flange extending through the plane of the drive wheel plate, a separate tooth root flange ribbon, said tooth root ribbon being corrugated and axially open with alternate radially outwardly extending tooth roots and radially inwardly extending portions, said radially inwardly extending portions being secured to the peripheral flange of said plate, and a plastic rim secured on said tooth root flange ribbon and to said outer portion of said flange, said plastic rim having radially outwardly extending teeth respectively and complementally positioned over and around the teeth of said tooth root flange ribbon.
Claim 3
Dependent Claim
37 words
A composite drive wheel device as defined in claim 1 wherein said ribbon is frictionally secured to said plate flange by open channel clips frictionally positioned over said plate flange and said inner portions of said ribbon.
Claim 4
Dependent Claim
35 words
A composite drive wheel device as defined in claim 1 wherein said ribbon is secured to said peripheral plate flange by encircling clips positioned around said plate flange and said inner portion of said ribbon.
Claim 5
Dependent Claim
30 words
A composite drive wheel device as defined in claim 1 wherein said peripheral plate flange is provided with axially tapered indentations adjacent said radially outwardly extending portions of said ribbon.
Claim 6
Dependent Claim
38 words
A composite drive wheel device as defined in claim 1 wherein said radially outwardly extending tooth roots of said ribbon are provided with embossments on an extending surface thereof to aid in the retention of the plastic rim.
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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) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |