Patent US3633719A successfully refreshed from Google Patents.
US3633719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support assembly for a concrete mixer chute
Assignee: CONSTRUCTION MACHINERY CO
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Filing: 1969-02-17
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Granted: 1972-01-11
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Expires: 1989-02-17
Abstract
Abstract A support assembly for a concrete mixer chute including a support member rotatably secured to the concrete mixer frame below the mixing drum discharge opening. The upper end of the chute is connected to the upper end of the support member and is connected intermediate its length to the lower end of the support member. The chute and support member are rotatable about a vertical axis with respect to the mixer so that the concrete can be directed to the desired unloading point. A first gear segment is rigidly secured to the support element for rotation therewith and a second gear element is movably mounted on the mixer frame. The second gear segment is movable into and out of engagement with the first gear segment to permit the chute and supporting member to be locked in various positions of their rotatable movement to maintain the chute in the desired unloading position. Means are also provided to maintain the second gear segment in its engaged position and its disengaged position with respect to the first gear segment.
Inventors
- 👤 Cecil G Lynch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:00
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/42; B28C5/4203; B28C5/4234; B28C5/4244; B28C5/4248; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5681
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
332 words
In a discharge chute support for concrete mixers or the like, a frame means, a support means operatively secured to said frame means, a support member operatively rotatably secured to said support means and adapted to be secured to said discharge chute and to rotatably support the same with respect to said frame means, a locking means selectively locking said support member in various positions of its rotatable movement with respect to said support means, said locking means including a first locking means rigidly secured to said support member for rotation therewith, a second locking means operatively secured to and movably mounted on said support means, said first and second locking means having first and second registering portions provided thereon respectively adapted to be selectively interlocked with each other at times, said second locking means being movable from a first position wherein said registering portions are not interlocked to a second position wherein said registering portions are interlocked, said discharge chute being maintained in various positions of its rotatable movement with respect to said support means when the registering elements are interlocked, said first and second registering portions being comprised of first and second gear segments respectively, said second gear segment being mounted on a horizontally disposed pivotal rod means, a handle means connected to said rod means for pivotally moving said second gear segment into and out of engagement with said first gear segment, said handle means including an end portion which is secured to said rod means in an eccentric relationship with respect to said second gear segment and said rod means, and a spring means yieldably engaging said end portion of said handle means when said gear segments are interlocked to yieldably maintain the same in said interlocked position, said spring means being elongated and including an arcuate portion adapted to receive said end portion of said handle means when said second gear segment has been moved to a position out of interlocking engagement with said first gear segment.
Claim 2
Dependent Claim
332 words
In a discharge chute support for concrete mixers or the like, a frame means, a support means operatively secured to said frame means, a support member operatively rotatably secured to said support means and adapted to be secured to said discharge chute and to rotatably support the same with respect to said frame means, a locking means selectively locking said support member in various positions of its rotatable movement with respect to said support means, said locking means including a first locking means rigidly secured to said support member for rotation therewith, a second locking means operatively secured to and movably mounted on said support means, said first and second locking means having first and second registering portions provided thereon respectively adapted to be selectively interlocked with each other at times, said second locking means being movable from a first position wherein said registering portions are not interlocked to a second position wherein said registering portions are interlocked, said discharge chute being maintained in various positions of its rotatable movement with respect to said support means when the registering elements are interlocked, said first and second registering portions being comprised of first and second gear segments respectively, said second gear segment being mounted on a horizontally disposed pivotal rod means, a handle means connected to said rod means for pivotally moving said second gear segment into and out of engagement with said first gear segment, said handle means including an end portion which is secured to said rod means in an eccentric relationship with respect to said second gear segment and said rod means, and a spring means yieldably engaging said end portion of said handle means when said gear segments are interlocked to yieldably maintain the same in said interlocked position, said spring means being elongated and including an arcuate portion adapted to receive said end portion of said handle means when said second gear segment has been moved to a position out of interlocking engagement with said first gear segment.
Claim 3
Dependent Claim
42 words
The apparatus of claim 1 wherein the axis of said end portion of said handle means is disposed above the axis of said rod means and is disposed above the plane of said second gear segment when said gear segments are interlocked.
Claim 4
Dependent Claim
44 words
The apparatus of claim 2 wherein the axis of said end portion of said handle means is disposed above the axis of said rod means and is disposed below the registering portion of said second locking means when said gear segments are not interlocked.
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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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |