Electrical connectors – Metallic clamp-type connector for storage battery terminal – Clamping lever – cam – or wedge
Reexamination Certificate
2000-01-04
2001-03-20
Patel, Tulsidas (Department: 2839)
Electrical connectors
Metallic clamp-type connector for storage battery terminal
Clamping lever, cam, or wedge
C439S757000
Reexamination Certificate
active
06203383
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates generally to battery terminals and battery terminal connections, as are employed typically in vehicles.
There is need for simple, effective, low cost, reliable, and easily connectible apparatus, for use with battery terminal posts, as in vehicles such as automobiles and trucks. No prior such apparatus of which I am aware embodies the improvements in structure, function and results as are now made possible by the present invention.
SUMMARY OF THE INVENTION
It is a major object of the invention to provide improved apparatus to meet the above need or needs.
Basically, the apparatus of the invention employs lever-controlled battery terminal structure, resulting in mechanical advantage of connection, and includes:
a) a body having upper and lower portions, the lower portion defining a re-entrant recess to receive a battery terminal post,
b) a lever carried by the body to pivot relative to the body upper portion and relative to the recess,
c) the lever having one pivoted position wherein clamping force is transmitted to the post by the lever.
Typically the lever has another pivoted position wherein the post is released from clamping by the lever.
It is another object of the invention to provide improved structure wherein the lever has a post clamping part at a lower level relative to the body, and a handle at an upper level relative to the body, the handle projecting upwardly in said other pivoted position of the lever. As will be seen, the body upper portion has a top, and said lever handle has a top that is substantially flush with the body top in said one position of the lever.
A further object of the invention is to provide at least one wedge surface on the lever, and which engages an outer surface of the post in said one position of the lever.
Typically, there are two of the wedge surfaces on the lever, and which engage opposed surfaces of the post in the one position of the lever; and the wedge surfaces on the lever are a arcuate about an axis of lever pivoting to progressively engage a lower portion of the post as the lever is pivoted.
Another object is to provide the body in elongated form, with an end remote from the post recess and from the lever wedge surfaces, and there being at least one cable opening in the body and intersecting said end.
The overall structure of the body and lever enables highly protected and safe coverage of the clamped battery terminal post, with over-center lever clamping action, the lever handle combining with the body to cover and protect the point or points of post clamping engagement.
These and other objects and advantages of the invention, as well as the details of an illustrative embodiment, will be more fully understood from the following specification and drawings, in which:
REFERENCES:
patent: 1596891 (1926-08-01), Rensch
patent: 1648914 (1927-11-01), Roy
patent: 2110918 (1938-03-01), Roberts
patent: 3568139 (1971-03-01), Delzer
patent: 4695118 (1987-09-01), Magdesyan et al.
patent: 5269709 (1993-12-01), Eriksson
Alves Roger J.
Iby Lewis C.
Pardo Fernando
Haefliger William W.
Patel Tulsidas
Scosche Industries Inc.
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