Electrical connectors – Metallic clamp-type connector for storage battery terminal
Reexamination Certificate
2001-06-15
2002-11-12
Patel, Tulsidas (Department: 2839)
Electrical connectors
Metallic clamp-type connector for storage battery terminal
C439S287000, C439S741000, C439S500000
Reexamination Certificate
active
06478633
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a terminal rivet, and particularly, to a cylindrical terminal rivet, which can avoid foreign liquids such as the leaked liquid from the battery, passing through the pierced holes therein and can strengthen the torque resistance after engaging with a work piece. Furthermore, the cylindrical terminal rivet can be used for a battery snap.
2. Description of Related Art
The quality of an electronic product usually depends on whether the design of components thereof and the assembly of the components are good or not. Especially, how to properly treat adjoin a so-called contact point or terminal is very important in the electronic industry.
Taking the battery box as an example, although it is not a high precision product, the contact point being unimpeded is a key feature affecting the function and the quality of an electronic product. Actually, it is a primary consideration for the battery box to offer sufficient room for receiving the batteries so that it is not possible for the maker to treat the contact points thereof with a high precision or high cost.
Referring to
FIG. 1
, a conventional hollow terminal rivet
100
comprises a base plate
101
, and the base plate
101
at the center thereof has a hollow rivet post
102
with a cylindrical hole
103
communicating with the base plate
101
so that the entire rivet post
102
can pass through a work piece. Besides, the base plate
101
at a lateral side thereof has an elongated plate
104
with at least a wing piece
105
at both lateral edges for being pressed to join with an electric wire.
As soon as the rivet post
102
of the terminal rivet
100
is inserted into the work piece, the rivet post
102
can be pressed by a press machine to cause radial fracture so as to be expanded into a plurality of post pieces for fixing the work piece together with the base plate
101
. The terminal rivet
100
is integrally made of a metal and the cylindrical hole
103
is not blocked after the riveting step. As a result, foreign liquid or liquid leaked from the battery due to a chemical reaction may pass through the cylindrical hole
103
to flow toward the circuit board and damage the electronic product. In addition, the conventional terminal rivet is fixed to the work piece together with the base plate so that inferior quality of clamping may occur and the rivet post becomes rotatable on the work piece. As a result, it leads to an improper contact. Moreover, the post pieces may break and the whole terminal rivet may separate from the work piece.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a cylindrical terminal rivet, which has a cylinder to be compressed to form a flattened solid body to block the engaging hole therein so as to prevent foreign liquid from passing through the hole.
Another object is to provide a battery snap composed of two cylindrical terminal rivets of the present invention such that no liquid can flow through engaging holes to damage the related circuit board.
REFERENCES:
patent: 1912653 (1933-06-01), Olson
patent: 2990533 (1961-06-01), Hughes et al.
patent: 4239322 (1980-12-01), Gordon, Jr.
patent: 4295705 (1981-10-01), Ciliberti, Jr.
patent: 4812130 (1989-03-01), Altenschulte et al.
patent: 5065283 (1991-11-01), Adachi et al.
patent: 5312269 (1994-05-01), Hwang
patent: 5421743 (1995-06-01), Hwang
patent: 2081524 (1982-02-01), None
Patel Tulsidas
Troxell Law Office PLLC
Zarroli Michael C.
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