US3976284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete mixer trailer
Assignee: Individual
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Filing: 1975-06-23
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Granted: 1976-08-24
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Expires: 1995-06-23
Abstract
Abstract A concrete mixer truck and a concrete mixer trailer with each adapted for mixing a concrete mix in transit and at a construction site and for discharging the mix at the site. The concrete mixer trailer towed by a concrete mixer truck includes a leading axle, an intermediate axle, and a trailing axle mounted on a trailer frame in longitudinally spaced relation and each having dual wheels on each of the opposite ends thereof for substantially equal weight distribution thereon. A longitudinally adjustable tongue structure has one end thereof pivotally connected to a leading end portion of the trailer frame for vertical swinging movement and the other end thereof adapted to be connected to a concrete mixing truck. An extensible member has one end thereof pivotally connected to an intermediate portion of the tongue structure and the other end of the extensible member engages a suitable support surface whereby the extensible member is adapted to support the tongue structure when disconnected from the prime mover and to selectively raise and lower the other end of the tongue structure. The trailer has a prime mover for driving the drum and a water tank and other equipment for mixing and discharging concrete at a building site. A concrete mixer drum is rotatably mounted on the trailer frame and has structures thereon for receiving concrete mix and discharging same after mixing.
Inventors
- 👤 Danny R. Hupp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:53
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/16
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
185 words
A concrete mixer trailer comprising: a. a trailer frame having a leading end portion and a trailer end portion; b. at least three longitudinally spaced transverse axles mounted on said trailer frame and arranged as a leading axle and an intermediate axle and a trailing axle, said leading, intermediate and trailing axles being substantially equally spaced with each having dual wheels on opposite ends thereof; c. a tongue structure having one end with transversely spaced pivotal connections to the leading end portion of said trailer frame for vertical swinging movement about a horizontal axis, the other end of said tongue structure being adapted to be pivotally connected to a prime mover; and d. a concrete mixer drum rotatably mounted on said trailer frame and having means thereon for receiving concrete mix and for discharging the concrete mix from said drum after mixing therein, said drum being generally longitudinally of the trailer frame with the mid-portion thereof positioned over the intermediate axle with all of the axles being within the length of the drum and thereby under same for substantially equal weight distribution on said axles.
Claim 2
Dependent Claim
185 words
A concrete mixer trailer comprising: a. a trailer frame having a leading end portion and a trailer end portion; b. at least three longitudinally spaced transverse axles mounted on said trailer frame and arranged as a leading axle and an intermediate axle and a trailing axle, said leading, intermediate and trailing axles being substantially equally spaced with each having dual wheels on opposite ends thereof; c. a tongue structure having one end with transversely spaced pivotal connections to the leading end portion of said trailer frame for vertical swinging movement about a horizontal axis, the other end of said tongue structure being adapted to be pivotally connected to a prime mover; and d. a concrete mixer drum rotatably mounted on said trailer frame and having means thereon for receiving concrete mix and for discharging the concrete mix from said drum after mixing therein, said drum being generally longitudinally of the trailer frame with the mid-portion thereof positioned over the intermediate axle with all of the axles being within the length of the drum and thereby under same for substantially equal weight distribution on said axles.
Claim 3
Dependent Claim
101 words
A concrete mixer trailer as set forth in claim 1 wherein said tongue structure includes: a. a tongue frame portion including the one end of said tongue structure; b. longitudinally extending guide means mounted on said tongue frame portion; c. a connection portion received in said guide means and longitudinally movable relative to said tongue frame portion for varying the length of the tongue structure, said connection portion including the other end of said tongue structure; and d. fastening means engageable with said connection portion and said guide means for retaining a selected spacing between the ends of said tongue structure.
Claim 4
Dependent Claim
115 words
A concrete mixer trailer as set forth in claim 1 including: 1. a drum drive motor mounted on said trailer frame adjacent to and operatively connected to said concrete mixer drum for selectively rotating same; b. a tank mounted on the leading end portion of said trailer frame and positioned adjacent said drum drive motor; c. a flow member extending from said tank and communicating with said concrete mixer drum for controlled flow of mixing water thereinto; and d. said drive motor and mixer drum being arranged on said trailer frame substantially within the length from the front of the wheels on the leading axle to the rear of the wheel on the trailing axle.
Claim 5
Dependent Claim
94 words
A concrete mixer trailer as set forth in claim 2 including: a. a fluid operated extensible member having one end thereof pivotally mounted on said tongue structure and a foot member on the other end thereof for engaging a support surface for selectively raising and lowering said other end of said tongue structure; b. a fluid tank mounted on said tongue structure and having flow members communicating with said extensible member; and c. power means mounted on said tongue structure and including pump means for selectively effecting extension and retraction of said foot member.
Claim 6
Dependent Claim
229 words
In combination: a. a prime mover having a concrete mixer drum rotatably mounted thereon and having means thereon for receiving concrete mix and for discharging the concrete mix from said drum after mixing therein; b. a trailer frame having a leading end portion and a trailing end portion; c. three longitudinally spaced transverse axles mounted on said trailer frame and arranged as a leading axle and an intermediate axle and a trailing axle, said three axles being substantially equally spaced with each having dual wheels on opposite ends thereof; d. a tongue structure having one end thereof having transversely spaced pivotal connections to the leading end portion of said trailer frame for vertical swinging movement about a horizontal axis, the other end of said tongue structure being removably and pivotally connected to said prime mover; and e. a concrete mixer drum rotatably mounted on said trailer frame and having means thereon for receiving concrete mix and for discharging the concrete mix from said drum after mixing therein said drum being generally longitudinally of the trailer frame with the mid-portion thereof positioned over the intermediate axle and with all of the axles within the length of the drum and thereby under same for substantially equal weight distribution on said axles, the weight distribution and tongue connections providing turning of the trailer about the intermediate axle in trailing movement around turns.
Claim 7
Dependent Claim
229 words
In combination: a. a prime mover having a concrete mixer drum rotatably mounted thereon and having means thereon for receiving concrete mix and for discharging the concrete mix from said drum after mixing therein; b. a trailer frame having a leading end portion and a trailing end portion; c. three longitudinally spaced transverse axles mounted on said trailer frame and arranged as a leading axle and an intermediate axle and a trailing axle, said three axles being substantially equally spaced with each having dual wheels on opposite ends thereof; d. a tongue structure having one end thereof having transversely spaced pivotal connections to the leading end portion of said trailer frame for vertical swinging movement about a horizontal axis, the other end of said tongue structure being removably and pivotally connected to said prime mover; and e. a concrete mixer drum rotatably mounted on said trailer frame and having means thereon for receiving concrete mix and for discharging the concrete mix from said drum after mixing therein said drum being generally longitudinally of the trailer frame with the mid-portion thereof positioned over the intermediate axle and with all of the axles within the length of the drum and thereby under same for substantially equal weight distribution on said axles, the weight distribution and tongue connections providing turning of the trailer about the intermediate axle in trailing movement around turns.
Claim 8
Dependent Claim
107 words
In combination as set forth in claim 5 including: a. a drum motor mounted on said trailer frame adjacent to and operatively connected to said concrete mixer drum for selectively rotating same; b. a tank mounted on the leading end portion of said trailer frame and positioned adjacent said drum drive motor; c. a flow member extending from said tank and communicating with said concrete mixer drum for controlled flow of mixing water thereinto; and d. said drive motor and mixing drum being substantially within the length between the front of the wheels on the leading axle and the rear of the wheel on the trailing axle.
Claim 9
Dependent Claim
99 words
In combination as set forth in claim 6 wherein said tongue structure comprises: a. a tongue frame portion including the one end of said tongue structure; b. longitudinally extending guide means mounted on said tongue frame portion; c. a connection portion received in said guide means and longitudinally movable relative to said tongue frame portion for varying the length of the tongue structure, said connection portion including the other end of said tongue structure; and d. fastening means engageable with said connection portion and said guide means for retaining a selected spacing between the ends of said tongue structure.
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) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |