US3884135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooking appliance
Assignee: F Kuppersbusch and Sohne AG
•
Filing: 1972-06-09
•
Granted: 1975-05-20
•
Expires: 1992-06-09
Abstract
Abstract An improved cooking appliance which includes a heated cooker for holding the ingredients to be cooked, a scraper for stirring the ingredients within the cooker and for scraping the bottom surface of the cooker and a drive for the scraper.
Inventors
- 👤 Alfred Lohr
- 👤 Wolfgang Tschek
- 👤 Heinz Forster
- 👤 Bernhard Klauk
- 👤 Wolfgang Schwan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:01
CPC Classifications
A; A47; A47J; A47J27/00; A47J27/14; B; B01; B01F; B01F27/00; B01F27/05; B01F27/09; B01F27/091
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
250 words
In a cooking appliance including a cooker for holding the ingredients to be cooked, the cooker having a bottom surface, means for heating the cooker, a stirring element for stirring the ingredients to be cooked, and means for driving the stirring element about a substantially vertical axis of the cooker, the improvement comprising in combination: a. a post member disposed coextensively with said axis and extending to said bottom, said post member forming part of said means driving said stirring element, said post member being arranged for rotation about said axis; b. two arms affixed to said post member and extending therefrom in opposite direction adjacent and parallel to said bottom, said arms forming part of said stirring element, each of said arms including, over its length, a first arm portion, a second arm portion adjoining end-to-end said first arm portion at a first angle and a third arm portion adjoining end-to-end said second arm portion at a second angle, in each arm one of said angles is an acute angle and the other of said angles is an obtuse angle, one of said angles in each arm being oriented in the direction of rotation of said post member, the other angle in each arm being oriented opposite the direction of rotation of said post member; and c. a scraper attached to and extending along each arm, said scraper forming part of said stirring element and cooperating with said bottom for scraping the same upon rotation of said post member.
Claim 2
Dependent Claim
250 words
In a cooking appliance including a cooker for holding the ingredients to be cooked, the cooker having a bottom surface, means for heating the cooker, a stirring element for stirring the ingredients to be cooked, and means for driving the stirring element about a substantially vertical axis of the cooker, the improvement comprising in combination: a. a post member disposed coextensively with said axis and extending to said bottom, said post member forming part of said means driving said stirring element, said post member being arranged for rotation about said axis; b. two arms affixed to said post member and extending therefrom in opposite direction adjacent and parallel to said bottom, said arms forming part of said stirring element, each of said arms including, over its length, a first arm portion, a second arm portion adjoining end-to-end said first arm portion at a first angle and a third arm portion adjoining end-to-end said second arm portion at a second angle, in each arm one of said angles is an acute angle and the other of said angles is an obtuse angle, one of said angles in each arm being oriented in the direction of rotation of said post member, the other angle in each arm being oriented opposite the direction of rotation of said post member; and c. a scraper attached to and extending along each arm, said scraper forming part of said stirring element and cooperating with said bottom for scraping the same upon rotation of said post member.
Claim 3
Dependent Claim
28 words
A cooking appliance as defined in claim 1, wherein said acute angle is disposed radially outboard of said obtuse angle in each arm with respect to said axis.
Claim 4
Dependent Claim
27 words
A cooking appliance as defined in claim 1, wherein said acute angle in each arm has its apex in the direction of rotation of said post member.
Claim 5
Dependent Claim
217 words
In a cooking appliance including a cooker for holding the ingredients to be cooked, the cooker having a bottom surface, means for heating the cooker, a stirring element for stirring the ingredients to be cooked, and means for driving the stirring element about a substantially vertical axis of the cooker, the improvement comprising in combination: a. a post member disposed coextensively with said axis and extending to said bottom, said post member forming part of said means driving said stirring element, said post member being arranged for rotation about said axis; b. a supporting arm affixed to said post member and extending therefrom in opposite directions adjacent and parallel to said bottom, said arm forming part of said stirring element, said arm having a generally inverted U-shaped cross-sectional portion and a flange portion extending outwardly from one side of said cross-sectional portion; c. a scraper extending along said arm, said scraper cooperating with said bottom for scraping the same upon rotation of said post member, said scraper having an upper edge region being in engagement with said U-shaped portion; and d. fastening means mounting said scraper on said supporting arm, said flange portion of said supporting arm extending in spaced parallel relation with a mounted part of said scraper, said mounted part adjoining said upper edge region.
Claim 6
Dependent Claim
217 words
In a cooking appliance including a cooker for holding the ingredients to be cooked, the cooker having a bottom surface, means for heating the cooker, a stirring element for stirring the ingredients to be cooked, and means for driving the stirring element about a substantially vertical axis of the cooker, the improvement comprising in combination: a. a post member disposed coextensively with said axis and extending to said bottom, said post member forming part of said means driving said stirring element, said post member being arranged for rotation about said axis; b. a supporting arm affixed to said post member and extending therefrom in opposite directions adjacent and parallel to said bottom, said arm forming part of said stirring element, said arm having a generally inverted U-shaped cross-sectional portion and a flange portion extending outwardly from one side of said cross-sectional portion; c. a scraper extending along said arm, said scraper cooperating with said bottom for scraping the same upon rotation of said post member, said scraper having an upper edge region being in engagement with said U-shaped portion; and d. fastening means mounting said scraper on said supporting arm, said flange portion of said supporting arm extending in spaced parallel relation with a mounted part of said scraper, said mounted part adjoining said upper edge region.
Claim 7
Dependent Claim
26 words
A cooking appliance as defined in claim 4, wherein said fastening means comprise a plurality of collar screws engaging said flange portion of said supporting arm.
Claim 8
Dependent Claim
234 words
In a cooking appliance including a cooker for holding the ingredients to be cooked, the cooker having a bottom surface, means for heating the cooker, a stirring element for stirring the ingredients to be cooked, and means for driving the stirring element about a substantially vertical axis of the cooker, the improvement comprising in combination: a. a post member disposed coextensively with said axis and extending to said bottom, said post member forming part of said means driving said stirring element, said post member being arranged for rotation about said axis; b. a supporting arm affixed to said post member and extending therefrom the opposite directions adjacent and parallel to said bottom, said arm forming part of said stirring element, said arm having a generally triangular profile being open towards said bottom and having a leading side, a trailing side and an open underside, said triangular profile defining an inner space extending within and along the length dimension of said arm; c. a support roller mounted for rotation within said inner space, said support roller being in engagement with said bottom to roll therealong upon rotation of said post member; d. a scraper engaging and extending along said leading side of said triangular profile of said arm, said scraper cooperating with said bottom for scraping the same upon rotation of said post member; and e. fastening means securing said scraper to said supporting arm.
Claim 9
Dependent Claim
234 words
In a cooking appliance including a cooker for holding the ingredients to be cooked, the cooker having a bottom surface, means for heating the cooker, a stirring element for stirring the ingredients to be cooked, and means for driving the stirring element about a substantially vertical axis of the cooker, the improvement comprising in combination: a. a post member disposed coextensively with said axis and extending to said bottom, said post member forming part of said means driving said stirring element, said post member being arranged for rotation about said axis; b. a supporting arm affixed to said post member and extending therefrom the opposite directions adjacent and parallel to said bottom, said arm forming part of said stirring element, said arm having a generally triangular profile being open towards said bottom and having a leading side, a trailing side and an open underside, said triangular profile defining an inner space extending within and along the length dimension of said arm; c. a support roller mounted for rotation within said inner space, said support roller being in engagement with said bottom to roll therealong upon rotation of said post member; d. a scraper engaging and extending along said leading side of said triangular profile of said arm, said scraper cooperating with said bottom for scraping the same upon rotation of said post member; and e. fastening means securing said scraper to said supporting arm.
Claim 10
Dependent Claim
32 words
In a cooking appliance as defined in claim 6, wherein said fastening means includes adjusting means arranged for affixing said scraper to said supporting arm at an arbitrary distance from said bottom.
Claim 11
Dependent Claim
210 words
In a cooking appliance including a cooker for holding the ingredients to be cooked, the cooker having a bottom surface, means for heating the cooker, a stirring element for stirring the ingredients to be cooked, and means for driving the stirring element about a substantially vertical axis of the cooker, the improvement comprising in combination: a. a post member disposed coextensively with said axis and extending to said bottom, said post member forming part of said means driving said stirring element, said post member being arranged for rotation about said axis; b. a supporting arm affixed to said post member and extending therefrom in opposite directions adjacent and parallel to said bottom, said arm forming part of said stirring element; c. at least one slide shoe secured to said supporting arm and being provided with a slide coating, said slide shoe guiding said supporting arm on the bottom surface of the cooker; d. a scraper extending along said arm, said scraper cooperating with said bottom for scraping the same upon rotation of said post member; and e. fastening and adjusting means securing said scraper to said supporting arm, said fastening and adjusting means being arranged for affixing said scraper to said supporting arm at an arbitrary distance from said bottom.
Claim 12
Dependent Claim
210 words
In a cooking appliance including a cooker for holding the ingredients to be cooked, the cooker having a bottom surface, means for heating the cooker, a stirring element for stirring the ingredients to be cooked, and means for driving the stirring element about a substantially vertical axis of the cooker, the improvement comprising in combination: a. a post member disposed coextensively with said axis and extending to said bottom, said post member forming part of said means driving said stirring element, said post member being arranged for rotation about said axis; b. a supporting arm affixed to said post member and extending therefrom in opposite directions adjacent and parallel to said bottom, said arm forming part of said stirring element; c. at least one slide shoe secured to said supporting arm and being provided with a slide coating, said slide shoe guiding said supporting arm on the bottom surface of the cooker; d. a scraper extending along said arm, said scraper cooperating with said bottom for scraping the same upon rotation of said post member; and e. fastening and adjusting means securing said scraper to said supporting arm, said fastening and adjusting means being arranged for affixing said scraper to said supporting arm at an arbitrary distance from said bottom.
Claim 13
Dependent Claim
21 words
A cooking appliance as defined in claim 8, wherein said supporting arm is formed as a member having a triangular profile.
Claim 14
Dependent Claim
218 words
In a cooking appliance including a cooker for holding the ingredients to be cooked, the cooker having a bottom surface, means for heating the cooker, a stirring element for stirring the ingredients to be cooked, and means for driving the stirring element abouT a substantially vertical axis of the cooker, the improvement comprising in combination: a. a post member disposed coextensively with said axis and extending to said bottom, said post member forming part of said means driving said stirring element, said post member being arranged for rotation about said axis; b. a supporting arm affixed to said post member and extending therefrom in opposite directions adjacent and parallel to said bottom, said arm forming part of said stirring element; c. at least one slide shoe secured to said supporting arm and being provided with an exchangeable slide sleeve which is slipped over said slide shoe, said slide shoe guiding said supporting arm on the bottom surface of the cooker; d. a scraper extending along said arm, said scraper cooperating with said bottom for scraping the same upon rotation of said post member; and e. fastening and adjusting means securing said scraper to said supporting arm, said fastening and adjusting means being arranged for affixing said scraper to said supporting arm at an arbitrary distance from said bottom.
Claim 15
Dependent Claim
218 words
In a cooking appliance including a cooker for holding the ingredients to be cooked, the cooker having a bottom surface, means for heating the cooker, a stirring element for stirring the ingredients to be cooked, and means for driving the stirring element abouT a substantially vertical axis of the cooker, the improvement comprising in combination: a. a post member disposed coextensively with said axis and extending to said bottom, said post member forming part of said means driving said stirring element, said post member being arranged for rotation about said axis; b. a supporting arm affixed to said post member and extending therefrom in opposite directions adjacent and parallel to said bottom, said arm forming part of said stirring element; c. at least one slide shoe secured to said supporting arm and being provided with an exchangeable slide sleeve which is slipped over said slide shoe, said slide shoe guiding said supporting arm on the bottom surface of the cooker; d. a scraper extending along said arm, said scraper cooperating with said bottom for scraping the same upon rotation of said post member; and e. fastening and adjusting means securing said scraper to said supporting arm, said fastening and adjusting means being arranged for affixing said scraper to said supporting arm at an arbitrary distance from said bottom.
References Cited (Backward Citations)
US1657524A
Cited
US955616A
Cited
US2012981A
Cited
US1958409A
Cited
US2586347A
Cited
US2573837A
Cited
US3329348A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |