Vent hole assembly

Details Vent hole assembly Vent hole assembly

1985-09-17

1987-01-27

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Circuit interruption by thermal sensing

361 58, 338 22R, 219505, 219523, 219548, H02H 504

Patent

active

046398180

ABSTRACT:
Circuit protection devices comprise a PTC conductive polymer element within a hollow enclosure which is sealed except for at least one vent. The vent is sealed by means of a cover member, preferably of adhesive tape. The exterior surface of the enclosure adjacent the vent and under the cover member is provided with indentations which change the internal pressure required to blow the cover member off the vent, and/or enable the cover member to open during a hot washing step and subsequently to reseal without admitting wash liquid, and/or control the direction in which gases flow after passing through the vent.

REFERENCES:
patent: 3719796 (1973-03-01), Abildtrup
patent: 4118753 (1978-10-01), Vind
patent: 4210800 (1980-07-01), Van Bokestal et al.
patent: 4329726 (1982-05-01), Middleman et al.
patent: 4450496 (1984-05-01), Doljack et al.
patent: 4475138 (1984-10-01), Middleman et al.
patent: 4542365 (1985-09-01), McTavish et al.

Affiliated with

Also associated with

Rating

Vent hole assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vent hole assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vent hole assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-861753