The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 2002
Filed:
Aug. 14, 2000
Shin-ichi Nakane, Okazaki, JP;
Makita Corporation, Anjo, JP;
Abstract
A battery pack ( ) has two female terminals ( ) each including two pairs of elastic plates ( ). Each pair of elastic plates ( ) are arranged symmetrically about a base plate ( ). Each elastic plate ( ) includes a parallel portion ( ) oriented parallel to its counterpart of the paired elastic plate ( ). Also included in each plate ( ) is a contact pressure portion ( ) which is bent from one end the parallel portion ( ) so as to extend into contact with its counterpart of the paired elastic plate ( ). The contact pressure portion ( ) is bent back at the contact point such that a small gap is formed between the free ends of the paired pressure portions. A device to which the battery pack ( ) is attached, such as an electric power tool or a charger, includes male terminals ( ) to be coupled to the pack. By specifying the length of the male terminals ( ), an appropriate level of contact pressure can be selected for the terminals ( ).