Patent US3722834A successfully refreshed from Google Patents.
US3722834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dough mixing machine
Assignee: Individual
•
Filing: 1972-01-20
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Granted: 1973-03-27
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Expires: 1992-01-20
Abstract
Abstract In a dough mixer having a frame, a tank, a power transmission driving a sleeve and a coaxial shaft, both projecting through one end wall of the tank, the improvement which includes a longitudinally adjustable idler shaft spaced from and aligned with the power driven shaft and extending through the other tank wall. An outer paddle assembly nests within the tank and at one end is secured to said drive shaft sleeve and at its other end is journalled upon the idler shaft. An inner paddle assembly rotates within the outer paddle assembly, at one end is secured to the drive shaft and at its opposite end is journalled upon the idler shaft and wherein, the inner paddle assembly is easily removable from the tank for cleaning by removing the two retainer nuts and upon axial retraction of the idler shaft sufficient to disengage from the inner paddle assembly to permit disengagement of the inner paddle assembly from the drive shaft.
Inventors
- 👤 S Bakewell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:15
CPC Classifications
A; A21; A21C; A21C1/00; A21C1/06; B; B01; B01F; B01F27/00; B01F27/05; B01F27/11; B01F27/13; B01F27/60; B01F27/70; B01F35/00; B01F35/40; B01F35/41; B01F35/412; B01F35/4122; B01F35/30; B01F2035/35; B01F2035/352
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
181 words
In a dough mixer having a frame, a tank with end walls pivotally supported on the frame; a power operated transmission on the frame; a power rotated sleeve connected to the transmission and projected through one end wall of and into the tank; and a power rotated shaft connected to the transmission and projected axially through said sleeve and said tank wall and into said tank; the improvement comprising an idler shaft aligned with the power rotated shaft, journalled on said frame projecting through the other end wall of said tank and partly into said tank; an outer paddle assembly including a pair of opposed spirally shaped mixing blades nested in the tank including one transverse end support keyed upon said drive sleeve and with the other end support centrally journalled upon said idler shaft; and an inner paddle assembly nested and rotatable within the outer paddle assembly and including a pair of opposed spirally shaped mixer rods including one transverse end support centrally secured to said power driven shaft and a second end support centrally secured upon said idler shaft.
Claim 2
Dependent Claim
181 words
In a dough mixer having a frame, a tank with end walls pivotally supported on the frame; a power operated transmission on the frame; a power rotated sleeve connected to the transmission and projected through one end wall of and into the tank; and a power rotated shaft connected to the transmission and projected axially through said sleeve and said tank wall and into said tank; the improvement comprising an idler shaft aligned with the power rotated shaft, journalled on said frame projecting through the other end wall of said tank and partly into said tank; an outer paddle assembly including a pair of opposed spirally shaped mixing blades nested in the tank including one transverse end support keyed upon said drive sleeve and with the other end support centrally journalled upon said idler shaft; and an inner paddle assembly nested and rotatable within the outer paddle assembly and including a pair of opposed spirally shaped mixer rods including one transverse end support centrally secured to said power driven shaft and a second end support centrally secured upon said idler shaft.
Claim 3
Dependent Claim
75 words
In the dough mixer of claim 1, spaced bearing blocks on said frame; the mounting of said tank including a pair of aligned spaced sleeves journalled within said bearing blocks respectively, each sleeve including an annular flange secured to a tank side wall, and a tubular seal engaging threaded shank extending through a tank end wall; said idler shaft journalled through one said sleeve, said power rotated sleeve journalled through the other tank mounting sleeve.
Claim 4
Dependent Claim
40 words
In the dough mixer of claim 2, apertured seals on said idler shaft and upon said power rotated sleeve on the interior of said tank mounting sleeves, and seal retainers engaging said seals respectively and threaded onto said threaded shanks.
Claim 5
Dependent Claim
63 words
In the dough mixer of claim 1, said idler shaft upon disconnection from said inner paddle assembly, being longitudinally adjustable outwardly and disengageable from one end support of said inner paddle assembly, whereby the inner paddle assembly upon disconnection from said power rotated shaft is longitudinally adjustable to disengage therefrom for removal of said inner paddle assembly without disturbing the outer paddle assembly.
Claim 6
Dependent Claim
63 words
In the mixer of claim 1, inner end portions of said power rotated and idler shafts being square with the ends threaded, the mounting of said inner paddle assembly including square apertures extending through the inner paddle assembly end supports receiving said square portions; and removable blind end nuts on the ends of said shafts retainably engaging said inner paddle assembly end supports.
Claim 7
Dependent Claim
17 words
In the mixer of claim 1, said inner paddle assembly mixing rods being circular in cross section.
Claim 8
Dependent Claim
75 words
In the mixer of claim 1, the mounting of said other end support of the outer paddle assembly upon said idler shaft including a central hub connected to said other end support, with its opposite ends threaded and receiving said idler shaft; a sleeve bearing interposed between said shaft and hub; plastic seals on said idler shaft engaging opposite ends of said hub; and seal retainer nuts on said idler shaft threaded onto said hub.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |