Printed matter – Having revealable concealed information – fraud preventer or... – Identifier
Patent
1998-02-26
2000-08-01
Fridie, Jr., Willmon
Printed matter
Having revealable concealed information, fraud preventer or...
Identifier
283 79, 283 72, 283 95, B42D 1500
Patent
active
060955686
ABSTRACT:
The invention relates to a device for sealing pressure compensation openings in components in particular of a motor vehicle control unit. Previously, pressure compensation openings were sealed in the interior of the housing by a watertight and gas-permeable material affixed by adhesion. In accordance with the invention, the opening is sealed from the outside with a two-layered material where a wide-area first layer consists of a material that can be inscribed and a second layer, which can also be provided over just a part of the total area, is a watertight and gas-permeable membrane. At those places where pressure compensation occurs, the first layer is removed so that only the membrane acts. The first layer can be used here as a label. Advantages offered by this device are that the housing and the membrane are joined over a much larger area, the process can be monitored, and one process step is saved.
REFERENCES:
patent: 3989279 (1976-11-01), Levy
patent: 5141237 (1992-08-01), Yamada et al.
patent: 5423139 (1995-06-01), Feldman
patent: 5577914 (1996-11-01), Takahashi et al.
patent: 5720498 (1998-02-01), McAuley et al.
Baur Richard
Fendt Gunter
Fridie Jr. Willmon
Kunitz Norman N.
Spencer George H.
TEMIC Telefunken microelectronic GmbH
LandOfFree
Device for sealing pressure compensation openings does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for sealing pressure compensation openings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for sealing pressure compensation openings will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-656404