US3738582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for comminuting, separating, manipulating and pumping materials
Assignee: Individual
•
Filing: 1971-11-18
•
Granted: 1973-06-12
•
Expires: 1991-11-18
Abstract
Abstract Apparatus for pumping and comminuting, and otherwise treating viscous and semi-solid materials includes a housing having an axial inlet and tangential outlet and a rotor in the housing having at least one semi-cylindrical blade disposed at an angle to the axis of rotation, the straight edge of the blade facing the inlet and having a medially disposed recessed cut out portion to prevent back-up and jamming of materials.
Inventors
- 👤 G Neidl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:41
CPC Classifications
F; F04; F04D; F04D11/00; F04D11/005; B; B02; B02C; B02C18/00; B02C18/0084; B02C18/0092
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
132 words
Apparatus for comminuting, processing and pumping materials comprising a housing having an interior defined by a surface of revolution, said housing being provided with an axial inlet at one end for material to be processed and a transverse outlet for processed material disposed medially of the housing, a rotor in said housing mounted concentrically with the axis of said surface of revolution, said rotor being provided with two semi-circular discs disposed obliquely with respect to said axis and converging inwardly towards each other in the direction of said inlet to intersect each other along a line transverse to said axis, at least one of said discs being provided with a cut-out opening which includes an area of the disc defined on one side by a medial portion of said line of intersection.
Claim 2
Dependent Claim
132 words
Apparatus for comminuting, processing and pumping materials comprising a housing having an interior defined by a surface of revolution, said housing being provided with an axial inlet at one end for material to be processed and a transverse outlet for processed material disposed medially of the housing, a rotor in said housing mounted concentrically with the axis of said surface of revolution, said rotor being provided with two semi-circular discs disposed obliquely with respect to said axis and converging inwardly towards each other in the direction of said inlet to intersect each other along a line transverse to said axis, at least one of said discs being provided with a cut-out opening which includes an area of the disc defined on one side by a medial portion of said line of intersection.
Claim 3
Dependent Claim
19 words
Apparatus defined in claim 1, wherein the outlet is disposed generally tangentially with respect to said surface of revolution.
Claim 4
Dependent Claim
22 words
Apparatus defined in claim 1, wherein the outlet is disposed generally radially with respect to the axis of said surface of revolution.
Claim 5
Dependent Claim
23 words
Apparatus defined in claim 1, wherein the surfaces of said discs facing the inlet are arcuately formed with their concavities facing the inlet.
Claim 6
Dependent Claim
31 words
Apparatus defined in claim 1, wherein said surface of revolution defining the interior of the housing is generally a frustum of a cone, the smallest radius thereof being adjacent the inlet.
Claim 7
Dependent Claim
34 words
Apparatus defined in claim 1, wherein said surface of revolution defining the interior of the housing is generally defined by a curved generatrix the concave side of which faces the interior of the housing.
Claim 8
Dependent Claim
17 words
apparatus defined in claim 6, wherein said surface of revolution is generally a frustum of an ellipse.
Claim 9
Dependent Claim
17 words
Apparatus defined in claim 6, wherein said surface of revolution is generally a frustum of a sphere.
Claim 10
Dependent Claim
62 words
Apparatus defined in claim 1, wherein both of said discs are provided with cut-out openings which include areas defined on one side by a medial portion of said line of intersection between the two discs, and the curved peripheral margins of said discs include a series of teeth which are engageable with annular grooves provided in the interior surface of the housing.
Claim 11
Dependent Claim
39 words
Apparatus defined in claim 1, wherein said rotor also includes at least two longitudinally extending radially outwardly projecting plates disposed behind said discs and engaging with the interior of the housing along no more than one-half the length thereof.
Claim 12
Dependent Claim
29 words
Apparatus defined in claim 1, wherein the peripheral margins of said plates are provided with teeth which engage with annular grooves provided in the interior surface of the housing.
Claim 13
Dependent Claim
45 words
Apparatus defined in claim 1, wherein the margins of said discs defined by said line of intersection are provided with teeth, and the interior surface of the housing surrounding the inlet is provided with annular grooves which are engaged by the teeth on the discs.
Claim 14
Dependent Claim
72 words
Apparatus defined in claim 1, wherein the rotor includes a concentric driving shaft projecting outwardly of the housing opposite to said inlet, said housing including bearing means to rotatably support the shaft, the interior surface of the housing surrounding the bearing means being generally planar and being provided with at least one annular groove, the rear margins of said rotor being provided with teeth engageable with said groove surrounding the bearing means.
Claim 15
Dependent Claim
49 words
Apparatus defined in claim 13, wherein the interior surface of the housing surrounding the inlet is generally planar and is provided with at least one annular groove, the margins of the discs defined by said line of intersection being provided with teeth engageable with said groove surrounding the inlet.
Claim 16
Dependent Claim
18 words
Apparatus defined in claim 13, wherein said surface surrounding the bearing means is also provided with transverse channels.
Claim 17
Dependent Claim
17 words
Apparatus defined in claim 14, wherein said surface surrounding the inlet is also provided with transverse channels.
Claim 18
Dependent Claim
42 words
Apparatus defined in claim 1, wherein each of said discs is provided with a cut-out opening which includes an area defined on one side by a medial portion of said line of intersection, said discs being symmetrical mirror images of each other.
Claim 19
Dependent Claim
29 words
Apparatus defined in claim 17, wherein portions of the margins of said discs are provided with teeth engageable with annular grooves provided in the interior surface of the housing.
Claim 20
Dependent Claim
30 words
Apparatus defined in claim 18, wherein said discs are also provided with an additional aperture to permit portions of incoming material to pass directly to the rear of a disc.
Claim 21
Dependent Claim
40 words
Apparatus defined in claim 1, wherein said housing is circumferentially surrounded by a jacket having an interior space therein, said housing being provided with perforations establishing communication between the interior of the housing and the interior space of the jacket.
Claim 22
Dependent Claim
32 words
Apparatus defined in claim 20, wherein said outlet of the housing is in communication only with a space exterior of the jacket, and said jacket is provided with a separate outlet means.
Claim 23
Dependent Claim
41 words
Apparatus defined in claim 21, wherein the axis of said housing extends horizontally, said perforations in the housing extend over the lower portion thereof and the separate outlet means for the jacket extends downwardly from a lower portion of the jacket.
References Cited (Backward Citations)
US3067960A
Cited
US3375983A
Cited
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 |