Plastic sealing element for a galvanic primary cell

Details Plastic sealing element for a galvanic primary cell Plastic sealing element for a galvanic primary cell

1988-11-14

1990-09-18

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Cell enclosure structure, e.g., housing, casing, container,...

429169, 429173, H01M 204, H01M 208

Patent

active

049578324

ABSTRACT:
A plastic sealing element for dry cells includes a radially symmetrical, centrally perforated base element, the upper side of which is provided with an elastomeric sealing material which is extruded in the form of a circumferential annular bead, and a process for its manufacture. After the sealing element is pre-assembled with the cell's metal housing cover and the cell is assembled, the annular bead is pressed flat during final crimping so that a sealing zone having a small cross section and defining a long leakage path is developed between the cover and the base element, effectively preventing the leakage of electrolyte or water vapor, which is especially diffuse from the cell's porous carbon rod conductor, into the cell's sealing zone.

REFERENCES:
patent: 3276912 (1966-10-01), Pun
patent: 3623915 (1971-11-01), Pun et al.
patent: 3973995 (1976-08-01), Kamai
patent: 4407914 (1983-10-01), Inoue et al.

Affiliated with

Also associated with

Rating

Plastic sealing element for a galvanic primary cell does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Plastic sealing element for a galvanic primary cell, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plastic sealing element for a galvanic primary cell will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1572182