Back to results
US 4,303,876 AGranted
Multi-cell battery charger
AssigneeUnion Carbide Corporation
InventorsWilliam T. Kelly, III, Francis Stahl
Life of this patent
Estimating the term…
Abstract
A multi-cell battery charger having a cell holder adapted for receiving and charging various size rechargeable cells, such as cylindrical and rectangular shaped rechargeable cells.
Claims12
A battery charger comprising a holder having a generally rectangular base with a pair of upstanding first and second side walls, an upstanding front wall and an upstanding rear wall;
- a first conductive terminal contact means having a first upstanding conductive terminal member disposed adjacent to and interior of the first side wall and a second upstanding conductive terminal member disposed adjacent to and interior of the rear wall;
- a second conductive terminal contact means having a first upstanding conductive terminal member disposed adjacent to and interior of the second side wall and a second upstanding conductive terminal member disposed adjacent to and interior of the rear wall;
- a third conductive terminal contact means having two upstanding conductive terminal members disposed adjacent to and interior of the front wall;
- said second conductive terminal member of the first conductive terminal contact means and said second terminal member of the second conductive terminal contact means aligned substantially in the same plane and spaced apart from the conductive terminal members of the third terminal contact means by a distance to accommodate lengthwise a "D" size [about 2.25 inches (5.7 cm)] recharageable cell in pressure contact therebetween;
- said first conductive terminal member of the first conductive terminal contact means disposed and spaced apart from said first conductive terminal member of the second conductive contact means by a distance to accommodate two tandem series-connected "AA" size or "C" size [about 1.8 inches (4.8 cm)] rechargeable cells in pressure contact there-between;
- said first conductive terminal contact means and said second conductive terminal contact means connected across a transformer and current rectifier adapted for plugging into a conventional alternating-current power supply line;
- the improvement wherein the first conductive terminal contact means has a first snap battery terminal disposed in the base and wherein a second snap battery terminal in electrical contact with the second conductive terminal contact means is disposed adjacent to and spaced apart from the first snap battery terminal by about 0.5 inch (about 1.07 cm) to accommodate a 9-volt rectangular rechargeable cell for charging.
4 more elements
A battery charger comprising a holder having a generally rectangular base with a pair of upstanding first and second side walls, an upstanding front wall and an upstanding rear wall;
- a first conductive terminal contact means having a first upstanding conductive terminal member disposed adjacent to and interior of the first side wall and a second upstanding conductive terminal member disposed adjacent to and interior of the rear wall;
- a second conductive terminal contact means having a first upstanding conductive terminal member disposed adjacent to and interior of the second side wall and a second flexible upstanding conductive terminal member disposed adjacent to and interior of the rear wall;
- a third conductive terminal contact means having two upstanding conductive terminal members disposed adjacent to and interior of the front wall;
- said second conductive terminal member of the first conductive terminal contact means and said second terminal member of the second conductive terminal contact means aligned substantially in the same plane and spaced apart from the conductive terminal members of the third terminal contact means by a distance to accommodate lengthwise a "D" size [about 2.25 inches (5.7 cm)] rechargeable cell in pressure contact therebetween;
- said first conductive terminal member of the first conductive terminal contact means disposed and spaced apart from said first conductive terminal member of the second conductive terminal contact means by a distance to accommodate two tandem series-connected "AA" size or "C" size [about 1.8 inches (4.8 cm)] rechargeable cells in pressure contact therebetween;
- said first conductive terminal contact means and said second conductive terminal contact means connected across a transformer and current rectifier adapted for plugging into a conventional alternating-current power supply line;
- the improvement wherein the first terminal member of the first contact means is recess mounted in the first side wall and the second terminal member of the first contact means is recess mounted in the rear wall;
- wherein the first terminal member of the second contact means projects from the second side wall and the second terminal member of the second contact means projects from the rear wall;
- wherein one terminal member of the third contact means is disposed opposite the second terminal member of the first contact means and projects from the front wall;
- the second terminal member of the third contact means is disposed opposite the second terminal member of the second contact means and is recess mounted in the front wall, and wherein the first conductive terminal contact means has a first snap battery terminal disposed in the base and wherein a second snap battery terminal in electrical contact with the second conductive terminal contact means is disposed adjacent to and spaced apart from the first snap battery terminal by about 0.5 (about 1.07 cm) to accommodate a 9-volt rectangular rechargeable cell for charging.
7 more elements
Dependencies are inferred from the claim text.