US4573387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kitchen utensil for cutting of food
Assignee: Leifheit AG
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Filing: 1985-06-10
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Granted: 1986-03-04
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Expires: 2005-06-10
Abstract
Abstract A kitchen appliance for cutting fruit and vegetables in slices, with an upper rigid guide plate (2) carrying a cutting knife (5) extending at an acute angle (4) to the side wall, and with a lower tongue-like guide plate (3) which is adjusted vertically by an adjusting rod (20) guided in the frame (1) and extending approximately parallel to the cutting knife (5), and which is connected to the frame (1) via a film hinge (13).
Inventors
- 👤 Ulrich Denter
- 👤 Rolf-Gunter Schulein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:12
CPC Classifications
B; B26; B26D; B26D3/00; B26D3/28; B26D3/283; B26D2003/285; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18992; Y10T83/00; Y10T83/02; Y10T83/0267; Y10T83/929; Y10T83/9457; Y10T83/9488; Y10T83/949; Y10T83/9493
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
241 words
A kitchen appliance for cutting food comprising: a frame having two oppositely situated side portions and an end portion interconnecting said side portions; a first guide plate joined to said side portions and having an edge facing said end portion of said frame, said edge being directed at an angle of up to and including 45 degrees with one of said side portions of said frame; cutting means extending along said edge; a second guide plate having a first substantially rigid portion which is fixedly attached to said frame and a second substantially rigid portion positioned ajacent and spaced from said frame, said second portion having an edge region facing said edge of said first guide plate, said first portion and said second portion being hingedly joined together by hinge means, said hinge means extending substantially parallel to said cutting means; and adjusting means connected to said edge region of said second portion and mounted on said frame for displacement relative to said frame between a plurality of positions in which it supports said edge region along the length of said edge region at different transverse offsets from said cutting means to correspondingly vary the dimension of the food being cut by said cutting means, said adjusting means being coupled to said edge region of said second portion to maintain a substantially parallel relationship of said edge region relative to said cutting means over the complete length of said edge region.
Claim 2
Dependent Claim
241 words
A kitchen appliance for cutting food comprising: a frame having two oppositely situated side portions and an end portion interconnecting said side portions; a first guide plate joined to said side portions and having an edge facing said end portion of said frame, said edge being directed at an angle of up to and including 45 degrees with one of said side portions of said frame; cutting means extending along said edge; a second guide plate having a first substantially rigid portion which is fixedly attached to said frame and a second substantially rigid portion positioned ajacent and spaced from said frame, said second portion having an edge region facing said edge of said first guide plate, said first portion and said second portion being hingedly joined together by hinge means, said hinge means extending substantially parallel to said cutting means; and adjusting means connected to said edge region of said second portion and mounted on said frame for displacement relative to said frame between a plurality of positions in which it supports said edge region along the length of said edge region at different transverse offsets from said cutting means to correspondingly vary the dimension of the food being cut by said cutting means, said adjusting means being coupled to said edge region of said second portion to maintain a substantially parallel relationship of said edge region relative to said cutting means over the complete length of said edge region.
Claim 3
Dependent Claim
31 words
The kitchen appliance as claimed in claim 1, wherein the cutting means is a knife having a cutting edge formed of circular-segment pieces of meeting one another at an acute angle.
Claim 4
Dependent Claim
28 words
The kitchen appliance as claimed in claim 2 wherein said cutting edge has a bottom surface which is directed at an angle away from said second guide plate.
Claim 5
Dependent Claim
87 words
The kitchen applicance as claimed in claim 1 wherein said hinge is formed at said second guide plate by a contraction having a form of a circular arc cut off at an intermediate portion thereof by a connecting chord, such that said arc has two radius portions connected together by said chord said arc having radius equal to and not less than double the thickness of second plate and the connecting chord of the two radius parts having a length equal and not less than said thickness.
Claim 6
Dependent Claim
93 words
The kitchen appliance as claimed in claim 1 wherein said hinge is formed in said second guide plate by a contraction having the form of a circular arc cut off at an intermediate portion thereof by a connecting chord, such that said arc has two radius portions connected together by said chord, said arc having a radius equal to and not less than six times the thickness of said second plate and the connecting chord of the two radius parts having a length equal to and not less than half said material thickness.
Claim 7
Dependent Claim
22 words
The kitchen appliance as claimed in claim 1 wherein said second portion includes web elements in which said adjusting means is received.
Claim 8
Dependent Claim
70 words
The kitchen appliance as claimed in claim 1 wherein said adjusting means includes an adjusting rod supporting said edge region and having spaced apart ends which are slidably engaged with said side portions of said frame, an actuating member frictionally connected to said adjusting rod and mounted on said frame for movement thereon, and a deflecting guide along which one of said spaced ends of said adjusting rod is movable.
Claim 9
Dependent Claim
31 words
The kitchen appliance as claimed in claim 7 wherein the other of said spaced ends of said adjusting rod has a slope which corresponds to an inclination of said deflecting guide.
Claim 10
Dependent Claim
237 words
A kitchen appliance for cutting food comprising: a frame having two oppositely situated side portions and an end portion interconnecting said side portions; a first guide plate joined to said side portions and having an edge facing said end portion of said frame, said edge being directed at an angle of up to and including 45 degrees with one of said side portions; cutting means positioned along said edge; a second guide plate having a first portion which is connected to said end portion and at least the other of said side portions, a second portion positioned adjacent and spaced from said frame by two slits and having an edge region facing said edge of said first guide plate, and a film hinge joining said first portion and said second portion and extending substantially parallel to said cutting means, one of said slits extending along a portion of one of said side portions to the point of intersection of said film hinge and said end portion and the other of said slits extending along said other of said side portions; and adjusting means including an elongated adjusting rod contacting said second portion and having spaced ends mounted on said side portions for displacement between a plurality of positions in which it supports said edge region at different transverse offsets from said cutting means for correspondingly varying the dimension of the food being cut by said cutting means.
Claim 11
Dependent Claim
237 words
A kitchen appliance for cutting food comprising: a frame having two oppositely situated side portions and an end portion interconnecting said side portions; a first guide plate joined to said side portions and having an edge facing said end portion of said frame, said edge being directed at an angle of up to and including 45 degrees with one of said side portions; cutting means positioned along said edge; a second guide plate having a first portion which is connected to said end portion and at least the other of said side portions, a second portion positioned adjacent and spaced from said frame by two slits and having an edge region facing said edge of said first guide plate, and a film hinge joining said first portion and said second portion and extending substantially parallel to said cutting means, one of said slits extending along a portion of one of said side portions to the point of intersection of said film hinge and said end portion and the other of said slits extending along said other of said side portions; and adjusting means including an elongated adjusting rod contacting said second portion and having spaced ends mounted on said side portions for displacement between a plurality of positions in which it supports said edge region at different transverse offsets from said cutting means for correspondingly varying the dimension of the food being cut by said cutting means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-03 | 1989-09-02 | 1990-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-03 | 1993-09-02 | 1994-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-03 | 1997-09-02 | 1998-03-04 | $7700.00 | Window Closed / Lapsed |