Battery pack for cordless device

Details Battery pack for cordless device Battery pack for cordless device

1997-06-27

1998-08-04

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Cell support for removable cell

Having disparate support structure, e.g., eyeglass temple, etc.

429 99, 429123, H01M 210

Patent

active

057891010

ABSTRACT:
A battery pack 13 (FIG. 2) comprises an elongated cylindrical, metal casing 35, a plurality of cells 41, 43 in casing 35 and three coaxial pack terminals 46, 54, 61. For enhanced convenience, pack terminals 46, 54, 61 are electrically connectable in a cordless device 11 regardless of the angular orientation of the pack 13 about casing axis 33. To reduce cost and increase durability, pack 13 has no welded connections and will permit high current discharge rates. Cells 41, 43 are electrically connected but are mechanically disconnected. A spring 73 engages cell 41 and biases cells 41, 43 tightly together in compression to form good, low resistance electrical contact between cells 41, 43, casing base cap 45 and top 53. To provide a pack with two output voltages, the third pack terminal 61 has a polarity (relative to first pack terminal 46) the same as second pack terminal 54 and is electrically connected to the cell can terminal 43b of forward cell 43, thereby electrically by-passing cell 43.

REFERENCES:
patent: 3734207 (1973-05-01), Fishbein
patent: 4013907 (1977-03-01), Mabuchi
patent: 4265984 (1981-05-01), Kaye
patent: 4678259 (1987-07-01), Totty

Affiliated with

Also associated with

Rating

Battery pack for cordless device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Battery pack for cordless device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Battery pack for cordless device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1175222