Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Cell enclosure structure – e.g. – housing – casing – container,...
Reexamination Certificate
1998-12-22
2001-01-09
Kalafut, Stephen (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Cell enclosure structure, e.g., housing, casing, container,...
C429S163000
Reexamination Certificate
active
06171722
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a forming tank, and more particularly to such a forming tank that can be conveniently adjusted subject to the size of the electrodes used.
U.S. Pat. No. 3,754,994 discloses a forming tank for the plates of a lead-acid storage battery. In the forming tank for the plates of a lead-acid storage battery, a tank A is filled with electrolyte, a pair of brackets A
1
supported by the tank A on each side thereof, a pair of connector bars A
2
supported in the tank cooperating with the brackets A
1
at each side of the tank A, a pair of a spacer unit A
3
cooperating with each connector bar A
2
having openings A
4
to expose one connector bar A
2
to the lugs A
6
of a double plate group, the openings A
4
being separated by open cup-shaped portion A
5
adapted to support the lugs A
7
of an adjacent double plate group of opposite polarity, the openings A
4
and cup-shaped portion A
5
being proportioned and spaced so that separate plate group of given polarity are supported and electrically connected to the plate lugs A
6
at one end while at the other the lugs A
7
are supported in insulated relation with the opposite connector bar A
2
, a spacer comb A
8
positioned between the plate groups of opposite polarity to avoid short-circuit. This forming tank design has numerous drawbacks. Because a plurality of tanks A are connected in a line by brackets A
1
, the whole line of tanks A must be stopped from operation when one particular tank A has to be repaired. Because each bracket A
1
is fastened to two adjacent tanks A, different brackets A
1
should be used to fit different sizes of tanks A. Still another drawback of this forming tank design is the minor contact area between the conductor bars A
2
and the lugs A
6
. Furthermore, lugs A
6
and A
7
of opposite polarity may be installed in the openings A
4
and cup-shaped portion A
5
at spacer units A
3
erroneously, causing a short circuit.
SUMMARY OF THE INVENTION
The present invention provides a forming tank which is comprised of a tank body, two brackets supported on a step inside the tank body and arranged in parallel to hold two metal rods, two insulative members, positive and negative plates, and two spacer combs. The metal rods, the insulative members, the plates and the spacer combs are respectively replaceable. The brackets can be moved relative to each other to adjust the pitch therebetween subject to the size of the electric plates used. The plates each have two lugs at two opposite ends for positive positioning.
REFERENCES:
patent: 3754994 (1973-08-01), Roach
Dougherty & Troxell
Kalafut Stephen
Wills Monique
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