Battery Vent
A battery vent comprising a chamber bounded by a sidewall and a plate. In the chamber, a frit housing has a retainer wall extending from the plate into the chamber to an open retainer wall lower face. A vent tube extends outwardly from the frit housing and has a vent channel which is open to the retainer wall inside face. A frit is applied over the open retainer wall lower face and secured thereto by over molding.
1 . A battery vent comprising:
a chamber bounded by a sidewall and a plate;
a frit housing having a retainer wall extending from the plate into the chamber to an open retainer wall lower face;
a vent tube extending outwardly from the frit housing, the vent tube having a vent channel which is open to the retainer wall inside face; and
a frit applied over the open retainer wall lower face and secured thereto by over molding.
2 . The battery vent of claim 1 wherein the chamber is molded in a first molding process and the frit is over molded to the retainer wall in a second molding process.
3 . The battery vent of claim 2 wherein the frit housing further comprises a frit shelf positioned therein along a retainer wall inside face.
4 . The battery vent of claim 3 wherein the frit shelf is generally C shaped having an open portion thereof facing the vent channel.
5 . The battery vent of claim 4 wherein a portion of the frit is received on the frit shelf.
6 . The battery vent of claim 1 wherein the vent tube extends through the chamber sidewall.
7 . The battery vent of claim 5 wherein the vent tube extends through the chamber sidewall in a lateral direction.
8 . The battery vent of claim 1 further comprising a retainer barrel extending from the plate; the retainer barrel having two opposed apertures formed therein.
9 . The battery vent of claim 2 further comprising a vent seal extending from the plate along the chamber sidewall.
10 . The battery vent of claim 9 wherein the vent seal is formed by over molding.
11 . The battery vent of claim 10 wherein the vent seal and frit are both over molded in the second molding process.
12 . The battery vent of claim 10 wherein the vent seal is formed of thermoplastic rubber.
13 . A battery vent comprising:
an integrally molded frit housing which is molded with the battery vent in a first molding process such that the frit housing has an open end and a portion being open to the outside thereof; and,
frit positioned over the open end of the frit housing and secured thereto by an over molded frit seal in a second molding process.
14 . The battery vent of claim 13 wherein the frit housing comprises a retainer wall extending into a chamber of the vent to an open retainer wall lower face which receives the frit.
15 . The battery vent of claim 14 further comprising a vent tube defining the portion being open to the outside and extending outwardly from the frit housing.
16 . The battery vent of claim 13 wherein the frit housing is molded from a polypropylene material.
17 . The battery vent of claim 13 wherein the frit seal is molded from a thermoplastic rubber material.