Patent US3754737A successfully refreshed from Google Patents.
US3754737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct gear drive for truck mixer drum
Assignee: Jaeger Machine Co
•
Filing: 1972-02-01
•
Granted: 1973-08-28
•
Expires: 1992-02-01
Abstract
Abstract A direct gear drive for a mixer or agitator of the type in which the drum is mounted for rotation on a transporting vehicle, usually a truck. The power unit may be a hydraulic motor mounted directly behind the cab of the truck and the present invention provides a direct gear drive between that motor and the rotatable drum. This gear drive is in the form of a transmission of the planetary gear type, and, according to this invention, part of the transmission is disposed within the adjacent end of the drum itself, along with means for adequately protecting it from the contents of the drum, or in an exterior space recessed within the contour of the end of the drum.
Inventors
- 👤 J O'dea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:42
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/42; B28C5/4203; B28C5/4206; B28C5/421; B28C5/4217
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
159 words
In combination with a drum or the like with opposed ends of selected contour and a longitudinal axis and means for mounting the drum for rotation about the axis including a support in the form of a stand: a bearing assembly on the stand for rotatably mounting an adjacent end of the drum at the axis of the drum; a direct gear drive for the drum including a gear transmission unit supported by the bearing assembly and disposed co-axially of the drum; said gear transmission unit having its axis extending longitudinally relative to the adjacent end of the drum so that a portion of the unit is disposed within the contour of the said end of the drum; said transmission unit including a planetary gear system disposed within a housing; said housing being mounted within the contour of the drum end concentric with the axis thereof; and a driving connection between said housing and the end of the drum.
Claim 2
Dependent Claim
159 words
In combination with a drum or the like with opposed ends of selected contour and a longitudinal axis and means for mounting the drum for rotation about the axis including a support in the form of a stand: a bearing assembly on the stand for rotatably mounting an adjacent end of the drum at the axis of the drum; a direct gear drive for the drum including a gear transmission unit supported by the bearing assembly and disposed co-axially of the drum; said gear transmission unit having its axis extending longitudinally relative to the adjacent end of the drum so that a portion of the unit is disposed within the contour of the said end of the drum; said transmission unit including a planetary gear system disposed within a housing; said housing being mounted within the contour of the drum end concentric with the axis thereof; and a driving connection between said housing and the end of the drum.
Claim 3
Dependent Claim
54 words
The combination of claim 1 including: a drive motor disposed co-axial with the transmission unit and extending outwardly therefrom; an input shaft extending frOm the drive motor into said planetary gear housing; a reaction member extending from said housing outwardly toward the motor; and means for anchoring said reaction member to prevent rotation thereof.
Claim 4
Dependent Claim
96 words
The combination of claim 2 in which: said housing has a support sleeve non-rotatably secured thereto and extending outwardly at the end of the drum co-axial therewith; said sleeve being rotatably supported by the bearing assembly which is of the trunnion type; said reaction member is in the form of a sleeve which is concentric with and rotatably receives said input shaft and extends outwardly from the drum end; and said reaction member anchoring means comprises at least one torque arm anchored to a non-rotatable support and has a collar surrounding said member and keyed thereto.
Claim 5
Dependent Claim
36 words
The combination of claim 3 in which: said bearing assembly includes a spherical support and a complemental socket member providing a ball and socket joint to permit rocking of the inpur shaft relative to its axis.
Claim 6
Dependent Claim
43 words
The combination of claim 3 in which: said drive motor is in the form of a hydraulic motor co-axially mounted on said reaction sleeve member at its outer end and has its drive shaft axially aligned with and connected to said input shaft.
Claim 7
Dependent Claim
52 words
The combination of claim 3 in which: the bearing assembly comprises separable parts, one of which is removably mounted on said stand; said torque bar is removably attached to the support and to the reaction sleeve member; and said motor is removably mounted on the outer end of said reaction sleeve member.
Claim 8
Dependent Claim
98 words
The combination of claim 2 in which: said driving connection between said planetary gear housing and the adjacent end of the drum comprises a support ring of annular form surrounding an opening in said drum end and being fixed to said drum end; said housing removably fitting in said ring; said support sleeve has an inner flange in cooperation with said housing; means is provided for securing the flange to the housing; and means is provided for securing the flange to the support ring and comprises; an intermediate ring connected to said support ring and to said flange.
Claim 9
Dependent Claim
38 words
The combination of claim 7 in which: said intermediate ring is in contact with said support ring; a driving connection is provided between said rings; and a driving connection is provided between said flange and said intermediate ring.
Claim 10
Dependent Claim
16 words
The combination of claim 8 including: an additional driving connection between said flange and said housing.
Claim 11
Dependent Claim
15 words
The combination of claim 9 in which: all of said driving connections are separable. which:
Claim 12
Dependent Claim
65 words
The combination of claim 9 in which: said planetary gear housing is of cylindrical form and projects axially inwardly from the end of said drum and concentrically fits within said support ring attached to the end of the drum; and a pan-like cover for said housing is provided and has a skirt extending outwardly to the end of the drum and around said support ring.
Claim 13
Dependent Claim
41 words
The combination of claim 11 in which: said cover has an inner wall of dome form; and a guard collar surrounds said cover to form a continuation of said inner wall and is secured to said cover and said drum end.
Claim 14
Dependent Claim
62 words
The combination of claim 1 in which said end of the drum has an exterior pocket within the contour of said end and: said portion of the transmission unit includes a housing enclosing a planetary gear unit; said housing being of cylindrical form; and means for concentrically supporting said housing within the pocket and connecting the housing and drum together for rotation.
Claim 15
Dependent Claim
25 words
The combination of claim 13 in which: said supporting means comprises means extending between said housing and the wall of the pocket and connected thereto.
Claim 16
Dependent Claim
26 words
The combination of claim 1 in which said portion of the transmission unit is disposed within the interior of the drum axially inwardly of saiD end.
Claim 17
Dependent Claim
33 words
The combination of claim 1 in which said end of the drum has an exterior pocket within the contour of said end, and said portion of the transmission unit extends into said pocket.
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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |