US3738583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for mixing, blending, liquifying or chopping
Assignee: Individual
•
Filing: 1971-02-22
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Granted: 1973-06-12
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Expires: 1991-02-22
Abstract
Abstract An improved apparatus for liquefying, mixing and blending material, particularly foods, including a cup-shaped receptacle adapted to be mounted on a base containing a drive motor therein. The bottom wall of the receptacle has an opening therein, and a drive shaft extends through the opening and is sealingly engaged with the bottom wall. The lower end of the drive shaft is adapted to be releasably coupled to the drive motor. The upper end of the shaft has a blade set non-rotatably but removably connected thereto and positioned within the interior of the receptacle. The blade set includes two vertically spaced blades connected by pins. The drive shaft has radially extending projections adapted to drivingly engage the connecting pins of the blade set.
Inventors
- 👤 A Berland
- 👤 M Berland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:39
CPC Classifications
A; A47; A47J; A47J43/00; A47J43/04; A47J43/046
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
154 words
An improved apparatus for mixing or liquefying materials, comprising a blade set having upper and lower blades joined together by pegs, the lower blade having a center hole therein and elongated slots extending radially therefrom, a drive shaft having radial projections adjacent the upper end thereof whereby the upper end of said shaft and said projection pass through said center hole and said slots, respectively, for enabling said projections to drivingly engage said pegs, a sleeve surrounding and rotatably supporting said shaft, a cup-like receptacle having an opening in the bottom wall thereof and mean for sealingly supporting said sleeve within said opening, a winged nut provided on the lower end of said shaft, and a base means having motor means associated therewith and disposed for driving engagement with the winged nut, the base means having projections thereon adapted to extend into radial and circular cylindrical reentrances formed on the bottom of said receptacle.
Claim 2
Dependent Claim
154 words
An improved apparatus for mixing or liquefying materials, comprising a blade set having upper and lower blades joined together by pegs, the lower blade having a center hole therein and elongated slots extending radially therefrom, a drive shaft having radial projections adjacent the upper end thereof whereby the upper end of said shaft and said projection pass through said center hole and said slots, respectively, for enabling said projections to drivingly engage said pegs, a sleeve surrounding and rotatably supporting said shaft, a cup-like receptacle having an opening in the bottom wall thereof and mean for sealingly supporting said sleeve within said opening, a winged nut provided on the lower end of said shaft, and a base means having motor means associated therewith and disposed for driving engagement with the winged nut, the base means having projections thereon adapted to extend into radial and circular cylindrical reentrances formed on the bottom of said receptacle.
Claim 3
Independent Claim
316 words
An apparatus, particularly for mixing, blending, liquefying or chopping, comprising: a base having motor means mounted thereon; a substantially cup-shaped receptacle adapted to be removably supported on said base so that said receptacle opens in an upward direction, said receptacle having an opening in the bottom wall thereof; guide means coacting between said base and the lower portion of said receptacle for enabling said receptacle to be nonrotatably but removably seated on said base; substantially vertically extending shaft means extending through said opening and having the upper end thereof disposed within the interior of said receptacle; mounting means for rotatably but sealingly supporting said shaft means on said bottom wall of said receptacle; blade means removably mounted on said shaft means adjacent the upper end thereof, said blade means being rotatably driven by said shaft means; said blade means including upper and lower blade members vertically spaced a predetermined distance apart and pin means fixedly secured to and extending between said blade members; connecting means coacting between the upper end of said shaft means and said blade means for enabling said blade means to be easily manually detached from said shaft means without requiring removal of said shaft means from said receptacle; said connecting means includes a pin-and-slot type connection coacting between said blade means and the upper end of said shaft means for enabling said blade means to be initially axially pushed onto the end of said shaft means with said blade means being angularly displaceable a limited amount relative to said shaft means for causing said shaft means and said blade means to be disposed in rotatable driving engagement with one another and for preventing relative axial separation between said blade means and said shaft means; and disconnectible coupling means coacting between said motor means and the lower end of said shaft means for enabling said motor means to rotatably drive said shaft means.
Claim 4
Independent Claim
316 words
An apparatus, particularly for mixing, blending, liquefying or chopping, comprising: a base having motor means mounted thereon; a substantially cup-shaped receptacle adapted to be removably supported on said base so that said receptacle opens in an upward direction, said receptacle having an opening in the bottom wall thereof; guide means coacting between said base and the lower portion of said receptacle for enabling said receptacle to be nonrotatably but removably seated on said base; substantially vertically extending shaft means extending through said opening and having the upper end thereof disposed within the interior of said receptacle; mounting means for rotatably but sealingly supporting said shaft means on said bottom wall of said receptacle; blade means removably mounted on said shaft means adjacent the upper end thereof, said blade means being rotatably driven by said shaft means; said blade means including upper and lower blade members vertically spaced a predetermined distance apart and pin means fixedly secured to and extending between said blade members; connecting means coacting between the upper end of said shaft means and said blade means for enabling said blade means to be easily manually detached from said shaft means without requiring removal of said shaft means from said receptacle; said connecting means includes a pin-and-slot type connection coacting between said blade means and the upper end of said shaft means for enabling said blade means to be initially axially pushed onto the end of said shaft means with said blade means being angularly displaceable a limited amount relative to said shaft means for causing said shaft means and said blade means to be disposed in rotatable driving engagement with one another and for preventing relative axial separation between said blade means and said shaft means; and disconnectible coupling means coacting between said motor means and the lower end of said shaft means for enabling said motor means to rotatably drive said shaft means.
Claim 5
Dependent Claim
84 words
An apparatus according to claim 2, wherein said lower blade member has a pair of elongated slots extending radially from said center opening, and the upper end of said shaft having a pair of radIal projections thereon adapted to freely pass through said elongated slots for enabling said radial projections to be disposed in the space between the upper and lower blade members whereby said radial projections are adapted to abuttingly engage said pin means for rotating said blade means with said shaft means.
Claim 6
Dependent Claim
116 words
An apparatus according to claim 2, wherein said lower blade member has a center opening therethrough and at least one elongated slot extending radially therefrom, and the upper end of said shaft having a diameter approximately equal to the diameter of the center opening so as to freely rotatably extend therethrough, and the upper end of said shaft having at least one radial projection thereon adapted to freely pass through said elongated slot for enabling said radial projection to be disposed in the space between the upper and lower blade members whereby said radial projection is adapted to abuttingly engage said pin means for causing rotation of said blade means whenever said shaft means is rotated.
Claim 7
Dependent Claim
73 words
An apparatus according to claim 3, wherein said pin means are angularly displaced from said elongated slots, and wherein said upper blade member has a small guide opening therethrough and said shaft means has a small projection extending axially from the upper end thereof and adapted to extend through the guide opening in said upper blade member, whereby said upper blade member axially abuts against the upper axial end of said shaft means.
Claim 8
Dependent Claim
62 words
An apparatus according to claim 4, wherein said cup has an annular skirt portion extending downwardly from said bottom wall, said annular skirt defining a plurality of downwardly opening, angularly spaced, partially cylindrical recesses, and said base having a plurality of circumferentially spaced upwardly extending pegs formed on the upper surface thereof, said pegs being adapted to extend into said cylindrical recesses.
Claim 9
Dependent Claim
63 words
An apparatus according to claim 6, wherein said coupling means includes cooperating rotatable coupling members provided on the lower end of the shaft means and adjacent the upper end of the base, the coupling members having cooperating projections and grooves formed on the opposed axial end faces thereof for enabling said shaft means to be releasably but drivingly connected to said motor means.
Claim 10
Dependent Claim
54 words
An apparatus according to claim 4, wherein said upper and lower blade members each include an elongated planar base portion having an upwardly directed blade disposed adjacent the opposite ends thereof, the planar base portion of said upper and lower blades being disposed substantially parallel with one another but extending in substantially transverse directions.
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) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |