US4360559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for varnishing a card equipped with connecting pins and card obtained in this way
Assignee: Thales SA
•
Filing: 1981-07-31
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Granted: 1982-11-23
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Expires: 2001-07-31
Abstract
Abstract The process makes it possible to increase the electrical insulation and corrosion protection permitting the deposition of a varnish over the entire card, including the weld areas of pins. Prior to varnishing the process consists of placing protective sheets perforated at the location of the pins and of protecting the external parts of the pins by means of a deposit of a soap-based solution. The varnish further deposited on the faces of card does not adhere to the parts of the pins protected in this way. After drying the varnish it is merely necessary to clean the pins with hot water and by brushing to remove the protective deposit.
Inventors
- 👤 Claude Dalencon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:11
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/22; H05K3/28; H05K3/284; H05K2201/00; H05K2201/10; H05K2201/10227; H05K2201/10295; H05K2201/10303; H05K2203/00; H05K2203/30; H05K2203/304; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24174; Y10T428/24628
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
140 words
A process for varnishing a card equipped with connecting pins, wherein it comprises the following stages: the placing of protective screens on the card substrate so that it is only possible to see those parts of the pins which are external of the card, the screens being perforated at the location of the pins and with the diameter of the latter; spraying a soapy solution to which a colouring agent has been added on to the pins in the form of a uniform coating, the colouring agent permitting by a visual control to check the uniformity of the deposit; removal of the screens after drying the protective deposit of the pins; varnishing the card; cleaning with hot water to which a wetting agent has been added and brushing to remove the protective deposit for the pins, after drying the varnish.
Claim 2
Dependent Claim
140 words
A process for varnishing a card equipped with connecting pins, wherein it comprises the following stages: the placing of protective screens on the card substrate so that it is only possible to see those parts of the pins which are external of the card, the screens being perforated at the location of the pins and with the diameter of the latter; spraying a soapy solution to which a colouring agent has been added on to the pins in the form of a uniform coating, the colouring agent permitting by a visual control to check the uniformity of the deposit; removal of the screens after drying the protective deposit of the pins; varnishing the card; cleaning with hot water to which a wetting agent has been added and brushing to remove the protective deposit for the pins, after drying the varnish.
Claim 3
Dependent Claim
22 words
A process according to claim 1, wherein the soapy solution used comprises a mixture of soap, water, alcohol and a colouring agent.
Claim 4
Dependent Claim
38 words
A process according to claim 2, wherein the proportion of the components in the solution is as follows: 4 parts by weight of water, 1 part by weight of soap and approximately 2 parts by weight of alcohol.
Claim 5
Dependent Claim
14 words
A process according to claim 2 wherein the colouring agent used is methylene blue.
Claim 6
Dependent Claim
21 words
A process according to claim 2, wherein the proportion of the colouring agent in the mixture is below 1% by weight.
Claim 7
Dependent Claim
33 words
A process according to claim 1, wherein the screens are formed by two sheets of plastics material perforated by the ends of the pins during the application of the sheets to the substrate.
Claim 8
Dependent Claim
13 words
A process according to claim 6, wherein the sheets are made from polyethylene.
Claim 9
Dependent Claim
52 words
A card equipped with connecting pins and varnished in accordance with any one of the claims 1, 2 or 4, wherein the deposited varnish extends over the entire card, as well as at the base of the pins, so that it is only possible to see the external parts of the pins.
References Cited (Backward Citations)
FR2121415A1
Cited
US4315957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-22 | 1986-05-24 | 1986-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-22 | 1990-05-24 | 1990-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-22 | 1994-05-24 | 1994-11-23 | $7700.00 | Window Closed / Lapsed |