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US 7,070,441 B1Granted
Acid seal
AssigneeTulip Corporation
InventorsMark K. Gregory, Bernard N. Spiegelberg, Terry J. Evraets
Life of this patent
Estimating the term…
Abstract
A battery terminal includes an undercut groove that provides a leak proof seal between a battery terminal and a plastic battery cover or housing. The leak proof seal prevents electrolyte from seeping from the interior of the housing as well as prevents electrolyte from seeping between the battery terminal and plastic housing when the battery housing is filled with electrolyte.
Claims26
A battery terminal comprising:
- a body having a top surface, an opposing bottom surface, and a first groove extending within the body proximate the bottom surface wherein the first groove extends 360 degrees about the body and includes a base portion having a first width and an opening having a second width less than the first width.
A battery comprising:
- a housing having an outer surface and an inner surface defining an interior;
- and
- a terminal connected to the housing, having a first portion extending above the housing, a engagement portion engaged with the housing and a third portion in fluid communication with the interior of the housing, the terminal including a longitudinal axis extending through the terminal and substantially perpendicular to the portion of the housing through which the terminal is engaged, the terminal including a first groove within the engagement portion, the first groove including an opening having a first width, the first groove also including a portion having a width that is greater than the first width of the opening wherein the first groove includes a first groove vector extending from the base of the groove toward the opening of the groove, wherein the first groove vector is parallel to the longitudinal axis.
A battery terminal comprising:
- a body having a first portion extending from an engagement portion, the body including a longitudinal axis extending through the body, the body including a first groove within the engagement portion, the first groove extending substantially 360 degrees about a portion of the body and including an upwardly extending opening having a first width, the first groove also including a portion having a width that is greater than the first width of the opening.
A battery comprising:
- a terminal including a groove extending 360 degrees therearound, the groove including a base and an opening;
- a plastic housing having an outer surface and an inner surface defining an interior, the terminal being molded within the plastic housing and having a portion extending outwardly from one outer surface of the plastic housing, the plastic housing having a sealing bead extending into the opening of the groove and filling the area within the groove, the groove defining a groove vector extending substantially perpendicular through the area defined by the groove opening, the groove vector being substantially perpendicular to the one outer surface of the plastic housing, wherein the opening of the groove has a first width, the groove also including a portion having a width that is greater than the first width.
Dependencies are inferred from the claim text.