US4157680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drainage plates
Assignee: Alfa Laval AB
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Filing: 1976-04-02
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Granted: 1979-06-12
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Expires: 1996-04-02
Abstract
Abstract A perforated drainage plate for use as a lining in a cheese mould has parallel strips punched out of the plane of the plate to one side thereof to form two narrow slots on each side of each strip with the ends of the strips merging smoothly into the undeformed part of the plate. The plate is arranged with the strips abutting against the wall of the mould so that a narrow passageway is formed between the undeformed portion of the plate and the wall of the mould for draining away when forced through the slots. The strips are aligned in the direction in which a cheese block slides out of the mould after removal therefrom. The angle of inclination of the ends of the strips relative to the adjacent portion of the plate does not exceed 30 degrees, the width of the slots does not exceed 0.6 mm, and the radius of curvature of the recessed surfaces of each strip is not less than 1 mm.
Inventors
- 👤 George K. Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:49
CPC Classifications
A; A01; A01J; A01J25/00; A01J25/12; A01J25/13; A01J25/16; A01J25/162
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
274 words
In a cheese mold comprising an external casing fitted internally with a lining which defines a mold cavity of substantially constant transverse cross section along the length of the mold to permit a block of cheese curd to slide out of the mold after compression therein, the lining including drainage plates each comprising a given plate having a major portion thereof in a plane and having punched portions thereof out of the plane to the side thereof adjacent the casing to form parallel strips having ends which are integral with said major portion of said given plate and center portions which are spaced from said major portion of said given plate to form drainage slots between said major portion of said given plate and side edges of said center portions of said strips, said drainage plates being arranged with the parallel strips aligned along the length of the mold and in contact with the external casing whereby said major portions of the drainage plates cooperate with the external casing to form passages for drainage of whey pressed out of the curd; and means for reducing the force required to displace said block of curd in said mold to less than that which causes extrusion of the curd through said drainage slots, wherein (a) the ends of said strips of each drainage plate are inclined relative to said major portion of said given plate at an angle which does not exceed 30° (b) said drainage slots have a width which does not exceed 0.6 mm (c) said strips each define a recessed surface having a radius of curvature which is not less than 1 mm.
Claim 2
Dependent Claim
274 words
In a cheese mold comprising an external casing fitted internally with a lining which defines a mold cavity of substantially constant transverse cross section along the length of the mold to permit a block of cheese curd to slide out of the mold after compression therein, the lining including drainage plates each comprising a given plate having a major portion thereof in a plane and having punched portions thereof out of the plane to the side thereof adjacent the casing to form parallel strips having ends which are integral with said major portion of said given plate and center portions which are spaced from said major portion of said given plate to form drainage slots between said major portion of said given plate and side edges of said center portions of said strips, said drainage plates being arranged with the parallel strips aligned along the length of the mold and in contact with the external casing whereby said major portions of the drainage plates cooperate with the external casing to form passages for drainage of whey pressed out of the curd; and means for reducing the force required to displace said block of curd in said mold to less than that which causes extrusion of the curd through said drainage slots, wherein (a) the ends of said strips of each drainage plate are inclined relative to said major portion of said given plate at an angle which does not exceed 30° (b) said drainage slots have a width which does not exceed 0.6 mm (c) said strips each define a recessed surface having a radius of curvature which is not less than 1 mm.
Claim 3
Dependent Claim
34 words
A cheese mold according to claim 1, wherein said angle of inclination of said ends of said strips relative to said major portion of said given plate which is adjacent thereto is approximately 25°.
Claim 4
Dependent Claim
18 words
A cheese mold according to claim 1, wherein said drainage slots have widths which are approximately 0.4 mm.
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) | 1982-06-11 | 1982-12-11 | 1983-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-11 | 1986-12-11 | 1987-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-11 | 1990-12-11 | 1991-06-12 | $7700.00 | Window Closed / Lapsed |