US 4,399,201 A · Battery casing

Abstract

A battery casing for receiving one or more batteries, such as dry cells, to supply a battery-powered electrical device comprises first and second terminals for deriving electrical power from the battery. At least one of the first and second terminals is entirely received in the bore of the casing and is arranged to be in contact with an external conductor which will be inserted through an opening made in the top portion of the casing. The battery casing comprises a slidable member which opens and closes the opening at the top portion. The slidable member can be manipulated to assume its closed position so as to isolate at least one of the first and second terminals from the outside of the casing, preventing the terminals from making a short circuit. One of the first and second terminals, which can be isolated by the slidable member, is fixedly supported by an insulating member and is substantially U-shaped, while the other terminal may be L-shaped and a portion thereof is exposed outside.

Claims11

Dependent claims

A battery cartridge for use with a battery-powered electrical device, comprising:

(a) a casing for containing therein a plurality of dry cell batteries, said casing being detachable from said electrical device;
(b) first and second output terminals for supplying said electrical device with electrical power therethrough from said dry cell batteries, at least one of said first and second output terminals being positioned within said casing, said first and/or second output terminals, which is/are positioned within said casing, being arranged to be in contact with a conductive projection of said electrical device when said projection is inserted into said casing via an opening provided in the vicinity of said first and/or second output terminal, which is/are positioned within said casing;
(c) a movable piece arranged to assume first and second positions, said movable piece covering said opening when in said first position and uncovering said opening when in said second position for allowing said projection to be inserted into said casing via said opening.

Dependencies are inferred from the claim text.

Battery casing

Life of this patent

Battery casing

Life of this patent

Abstract

Claims11