US4022933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire enamelling machinery and the use thereof
Assignee: Balfour Beatty PLC
•
Filing: 1975-08-22
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Granted: 1977-05-10
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Expires: 1995-08-22
Abstract
Abstract In a machine for coating wire with organic enamel, especially solventless enamel, an applicator (3) is placed at the top of a baking oven (5) and the wire (1, 7) passes downwardly through the applicator and oven. The applicator unit preferably forms part of the closure of the top end of the baking chamber. In an oven providing for a number of upward and downward passes of the wire, further applicators may be provided below the bottom of the oven to coat the upward passes.
Inventors
- 👤 John Derek Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:27
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/20; B05C; B05C3/00; B05C3/02; B05C3/12; B05C3/15; Y; Y10; Y10S; Y10S118/00; Y10S118/18
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
57 words
A wire enamelling machine comprising an oven, an applicator comprising at least one applicator unit mounted at the top end of the oven and forming part of a closure for the top end of the baking chamber of the oven, and means for passing the wire at least once downwardly through the applicator unit and the oven.
Claim 2
Dependent Claim
57 words
A wire enamelling machine comprising an oven, an applicator comprising at least one applicator unit mounted at the top end of the oven and forming part of a closure for the top end of the baking chamber of the oven, and means for passing the wire at least once downwardly through the applicator unit and the oven.
Claim 3
Dependent Claim
28 words
A machine as claimed in claim 1 in which the applicator unit forms part of a closure for the top end of the baking chamber of the oven.
Claim 4
Dependent Claim
74 words
A machine comprising an oven, at least one applicator comprising a plurality of applicator units mounted at the top end of the oven and means including a set of top pulleys mounted adjacent the upper end of the oven and a set of bottom pulleys mounted adjacent the lower end of the oven for passing wire in a succession of downward passes through adjacent applicator units and on each downward pass through the oven.
Claim 5
Dependent Claim
74 words
A machine comprising an oven, at least one applicator comprising a plurality of applicator units mounted at the top end of the oven and means including a set of top pulleys mounted adjacent the upper end of the oven and a set of bottom pulleys mounted adjacent the lower end of the oven for passing wire in a succession of downward passes through adjacent applicator units and on each downward pass through the oven.
Claim 6
Dependent Claim
23 words
A machine as claimed in claim 3 including applicator units and guide means for a number of wires extending parallel to one another.
Claim 7
Dependent Claim
69 words
A vertical enamelling machine comprising an oven, at least one applicator comprising a plurality of applicator units mounted in the top wall of the oven, and means including a set of top pulleys mounted above the oven and a set of bottom pulleys mounted below the oven for passing wire in a succession of vertical downward passes through adjacent applicator units and on each downward pass through the oven.
Claim 8
Dependent Claim
69 words
A vertical enamelling machine comprising an oven, at least one applicator comprising a plurality of applicator units mounted in the top wall of the oven, and means including a set of top pulleys mounted above the oven and a set of bottom pulleys mounted below the oven for passing wire in a succession of vertical downward passes through adjacent applicator units and on each downward pass through the oven.
Claim 9
Dependent Claim
23 words
A machine as claimed in claim 1 including applicator units and guide means for a number of wires extending parallel to one another.
Claim 10
Dependent Claim
23 words
A machine as claimed in claim 5 including applicator units and guide means for a number of wires extending parallel to one another.
Claim 11
Dependent Claim
18 words
A machine as claimed in claim 1 in which each applicator unit includes a die removably mounted therein.
Claim 12
Dependent Claim
18 words
A machine as claimed in claim 5 in which each applicator unit includes a die removably mounted therein.
Claim 13
Dependent Claim
27 words
A machine as claimed in claim 8 in which the dies are mounted in one or more than one removable plate in the base of the applicator.
Claim 14
Dependent Claim
27 words
A machine as claimed in claim 9 in which the dies are mounted in one or more than one removable plate in the base of the applicator.
Claim 15
Dependent Claim
44 words
A machine as claimed in claim 1 including at least one further applicator positioned below the bottom of the oven to coat on at least one upward pass of the wire, the said upward pass also extending through a baking chamber of the oven.
Claim 16
Dependent Claim
44 words
A machine as claimed in claim 5 including at least one further applicator positioned below the bottom of the oven to coat on at least one upward pass of the wire, the said upward pass also extending through a baking chamber of the oven.
Claim 17
Independent Claim
51 words
A method of enamelling wire comprising passing it downwardly in succession through a plurality of applicator units mounted at the top end of an oven and thence downwards through the oven, enamel being applied in a liquid condition in the applicator unit and cured to a solid condition in the oven.
Claim 18
Independent Claim
51 words
A method of enamelling wire comprising passing it downwardly in succession through a plurality of applicator units mounted at the top end of an oven and thence downwards through the oven, enamel being applied in a liquid condition in the applicator unit and cured to a solid condition in the oven.
Claim 19
Dependent Claim
29 words
A method as claimed in claim 14 in which enamel is applied in a liquid condition in the applicator unit and cured to a solid condition in the oven.
Claim 20
Dependent Claim
30 words
A method as claimed in claim 14 in which solventless enamel is applied in a liquid condition in the applicator unit and cured to a solid condition in the oven.
Claim 21
Dependent Claim
54 words
A method as claimed in claim 14 in which wire passes vertically downwardly through at least one applicator unit mounted at the top end of an oven and thence vertically downwards through the oven, enamel being applied in a liquid condition in the applicator unit and cured to a solid condition in the oven.
Claim 22
Dependent Claim
71 words
A method as claimed in claim 14 in which wire passes vertically downwardly through at least one applicator unit mounted at the top end of an oven as part of a closure for the top end of the baking chamber of the oven and thence vertically downwards through the oven, solventless enamel being applied in a liquid condition in the applicator unit and cured to a solid condition in the oven.
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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) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |