Patent US3749372A successfully refreshed from Google Patents.
US3749372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yieldable support means and drive mechanism for concrete mixer drums
Assignee: Funk Manufacturing Co
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Filing: 1972-01-27
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Granted: 1973-07-31
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Expires: 1992-01-27
Abstract
Abstract A drive mechanism for concrete mixer drums which includes a suitable gear reducing means or transmission having an output shaft rigidly secured to the mixer drum for transmitting rotation thereto. The transmission is supported by a yieldable or flexible annular support member interposed between the transmission housing and an outer ring which is secured to the truck or vehicle supporting the mixer drum.
Inventors
- 👤 J Funk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:44
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/373; F16F1/3732; B; B28; B28C; B28C5/00; B28C5/42; B28C5/4203; B28C5/4206; B28C5/421; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2109
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
89 words
A drive mechanism for vehicle mounted concrete mixer drums and comprising a power source, a rotatable output shaft rigidly secured to the mixer drum, gear train means interposed between the power source and the output shaft for transmitting rotation thereto, non-rotatable housing means supporting the rotatable output shaft, support means disposed around the housing means and rigidly secured to the vehicle, yieldable means interposed between the housing means and support means for absorbing substantially all of the relative movement of the housing means with respect to the support means.
Claim 2
Dependent Claim
89 words
A drive mechanism for vehicle mounted concrete mixer drums and comprising a power source, a rotatable output shaft rigidly secured to the mixer drum, gear train means interposed between the power source and the output shaft for transmitting rotation thereto, non-rotatable housing means supporting the rotatable output shaft, support means disposed around the housing means and rigidly secured to the vehicle, yieldable means interposed between the housing means and support means for absorbing substantially all of the relative movement of the housing means with respect to the support means.
Claim 3
Dependent Claim
33 words
A drive mechanism for vehicle mounted concrete mixer drums as set forth in claim 1 wherein the yieldable means comprises a substantially annular elastomer member bonded between the housing means and support means.
Claim 4
Dependent Claim
61 words
A drive mechanism for vehicle mounted concrete mixer drums as set forth in claim 1 wherein the yieldable means is of a substantially annular configuration and of a substantially over-all wedge-shaped side configuration whereby the greater volume thereof is disposed at the lower portion of the housing means for efficiently supporting the weight of the mixer drum and absorbing vibrations thereof.
Claim 5
Dependent Claim
56 words
A drive mechanism or vehicle mounted concrete mixer drums as set forth in claim 1 wherein the yieldable means comprises a pair of concentrically spaced metallic rings having a yieldable matdrial bonded therebetween, one of said metallic rings being supported by the support means, and the other of said metallic rings supporting the non-rotatable housing means.
Claim 6
Dependent Claim
30 words
A drive mechanism for vehicle mounted concrete mixer drums as set forth in claim 4 wherein the annular space between the metallic rings is of a substantially arcuate cross-sectional configuration.
Claim 7
Dependent Claim
29 words
A drive mechanism for vehicle mounted concrete mixer drums as set forth in claim 4 wherein the annular space between the metallic rings is substantially conical in cross-sectional configuration.
Claim 8
Dependent Claim
26 words
A drive mechanism for vehicle mounted concrete mixer drums as set forth in claim 4 wherein the annular space between the metallic rings is substantially cylindrical.
Claim 9
Dependent Claim
36 words
A drive mechanism for vehicle mounted concrete mixer drums as set forth in claim 4 wherein the inner periphery of one metallic ring is concave and the outer periphery of the other metallic rings is convex.
Claim 10
Dependent Claim
36 words
A drive mechanism for vehicle mounted concrete mixer drums as set forth in claim 4 wherein the inner periphery of one metallic ring is convex and the outer periphery of the other metallic ring is concave.
Claim 11
Dependent Claim
34 words
A drive mechanism for vehicle mounted concrete mixer drums as set forth in claim 1 wherein the yieldable means comprises a generally circular undulated flexible member interposed between the housing means and support means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |