Patent US3616429A successfully refreshed from Google Patents.
US3616429A
Expired / Lapsed
US
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Apparatus for making perforated metal foil
Assignee: ThyssenKrupp Budd Co
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Filing: 1969-05-14
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Granted: 1971-10-26
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Expires: 1989-05-14
Abstract
Abstract Apparatus for making perforated metal foil includes a conductive cylindrical member having openings therein and adapted to receive electrodeposited metal to form the foil. A pliable insulated element is disposed within the cylindrical member. Means are provided for pressing the insulated element against the interior of the cylindrical member causing portions of the insulated element to protrude through the openings. Metal may then be deposited on the cylindrical member but not on the portions of the insulated element extending through the openings.
Inventors
- 👤 John J Mackinney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:46
CPC Classifications
C; C25; C25D; C25D1/00; C25D1/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
25 words
The invention as set forth in claim 1 wherein a plurality of cylindrical members and a plurality of inflatable members are provided in said apparatus.
Claim 2
Dependent Claim
23 words
The invention as set forth in claim 2 wherein said support means comprises a plurality of support members fixedly mounted to said shaft.
Claim 3
Dependent Claim
21 words
The invention as set forth in claim 3 wherein insulating elements are provided to separate said cylindrical members from each other.
Claim 4
Dependent Claim
44 words
Apparatus for making metal foil comprising a plurality of cylindrical members for receiving electrodeposited metal thereon, a rotatable shaft disposed inside of said cylindrical members, support means fixedly mounted to said shaft, and inflatable means disposed between said support means and said cylindrical members.
Claim 5
Dependent Claim
25 words
The invention as set forth in claim 5 wherein said inflatable means includes a plurality of inflatable members associated with said plurality of cylindrical members.
Claim 6
Dependent Claim
33 words
The invention as set forth in claim 6 wherein said support means includes a plurality of support members spaced from said plurality of cylindrical members to receive said plurality of inflatable members thereon.
Claim 7
Dependent Claim
22 words
The invention as set for forth in claim 7 wherein insulating means are provided to separate said cylindrical members from each other.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |