Electrical power packs and charging devices
First Claim
1. A power pack in combination with a battery operated device, the power pack comprising a casing, means for receiving rechargeable cells within the casing, power output terminals carried by the casing, and conductor means within the casing connecting the rechargeable cell terminals electrically to said output terminals, the casing being sealed permanently against removal of the rechargeable cells, said battery operated device comprising a base member including a recess having opposite sides, and pairs of opposed electrical power input terminals located on said opposite sides of the recess adapted for receiving individual conventional battery cells therebetween, the recess and power pack casing including complementary keying means for said recess to receive the power pack in place of said individual conventional battery cells in one predetermined orientation of said power pack relative to said recess, and said output terminals of the power pack engaging predetermined input terminals of the battery operated device with the power pack in the recess.
1 Assignment
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Accused Products
Abstract
A power pack (1) for use as an alternative to non-rechargeable batteries (3) in a toy (2) comprises a plurality of series connected rechargeable cells (13) accommodated within a casing (7) which is sealed permanently against removal of the cells and carries output terminals (11A-11C) arranged to cooperate with the power input terminals (6A-6D) of the toy when the power pack is inserted in place of the cells and with the contact terminals (25) of a recharging device (18) when the power pack is engaged with this device for recharging the cells. The power pack casing is shaped to cooperate with the toy (2) and recharging device so that it will engage with each in only one predetermined position.
42 Citations
16 Claims
- 1. A power pack in combination with a battery operated device, the power pack comprising a casing, means for receiving rechargeable cells within the casing, power output terminals carried by the casing, and conductor means within the casing connecting the rechargeable cell terminals electrically to said output terminals, the casing being sealed permanently against removal of the rechargeable cells, said battery operated device comprising a base member including a recess having opposite sides, and pairs of opposed electrical power input terminals located on said opposite sides of the recess adapted for receiving individual conventional battery cells therebetween, the recess and power pack casing including complementary keying means for said recess to receive the power pack in place of said individual conventional battery cells in one predetermined orientation of said power pack relative to said recess, and said output terminals of the power pack engaging predetermined input terminals of the battery operated device with the power pack in the recess.
- 9. A power pack for an electrically operated device having power input terminals, in combination with a recharging device, the power pack comprising a casing, means for receiving rechargeable cells within the casing, power output terminals carried by the casing for cooperation with the electrical power input terminals of the device to be operated, and conductor means within the casing connecting the rechargeable cell terminals electrically to said output terminals, the casing being sealed permanently against removal of the rechargeable cells, the recharging device comprising a housing with a recess therein, and two electrical recharging terminals in said recess, the housing recess and power pack casing having complementary keying means for said recess to receive said casing in one predetermined position, said two electrical recharging terminals being positioned in the housing recess to contact respective output terminals of the power pack for supplying electric current to recharge the cells of the power pack with the power pack engaged in the recess of the recharging device, and said two electrical recharging terminals being so positioned with respect to each other that conventional non-rechargeable cells cannot directly interconnect said terminals.
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16. A power pack adapted for use alternatively with a battery operated device and a recharging device, the power pack comprising a casing, rechargeable cells received within the casing, power output terminals carried by the casing, and conductor means within the casing connecting the cell terminals electrically to said output terminals, the casing being sealed permanently against removal of the cells, said battery operated device comprising means defining a first recess having opposite sides, and pairs of opposed electrical power input terminals located on said opposite sides for receiving individual conventional cells therebetween, said first recess and power pack casing including complementary keying means for said first recess to receive the power pack in place of said conventional cells in one predetermined orientation only of said power pack relative to said first recess, said output terminals engaging predetermined input terminals of the battery operated device with the power pack received in said first recess, the recharging device comprising a housing with a second recess therein, and two electrical recharging terminals in said second recess, said second recess and power pack causing having complementary keying means for said second recess to receive said casing in one predetermined position, said two recharging terminals being positioned in said second recess to contact respective output terminals of the power pack for supplying electric current to recharge the cells of the power pack with the power pack engaged in said first recess of the recharging device, and said two recharging terminals being so positioned with respect to each other than conventional non-rechargeable cells cannot directly interconnect said terminals.
Specification