Abstract A tamperproof housing for a portable battery-operated electronic device has an electronics-supporting chassis with an enclosed externally-accessible battery compartment to provide a concealed lock comprising a pair of cantilever spring members having their fixed ends attached to the chassis on the exterior of the battery compartment and their free ends each having a flange portion for engaging a corresponding notch in a housing cover to thereby secure the housing cover to the chassis. Two small openings are provided at the periphery of the interior end of the cylindrical battery compartment. The housing may be opened by use of a cylindrical tool having a shaft diameter slightly smaller than that of the battery compartment and further having a pair of prongs at the distal end of the shaft corresponding to the openings. The cover is detached from the chassis by inserting the tool into the battery compartment so that the prongs engage the openings and depress the two resilient cantilever latch members, thereby disengaging the flanges from the notches and releasing the cover from the chassis.
A tamperproof housing of the type suitable for enclosing a portable battery-operated electronic device, comprising: a chassis member for supporting the electronic circuitry of the device and having an enclosed battery compartment with an external access and having an interior surface remote from said external access, said remote surface having one or more minimal-sized peripheral openings therein; a cover member having a pair of notches in the internal side thereof mating with said chassis member to thereby enclose the electronic device; and concealed locking means comprising a pair of cantilever spring members each having the fixed end attached to said chassis member and a flange portion formed at the free end removably engaging a corresponding one of said notches in said cover member to thereby secure said cover member to said chassis member, said cantilever spring members being adapted to be actuated by A dual-pronged tool for bending said cantilever members and thereby disengaging said flange portion from said notches to free said cover member from said chassis member.
Claim 2
Dependent Claim
169 words
A tamperproof housing of the type suitable for enclosing a portable battery-operated electronic device, comprising: a chassis member for supporting the electronic circuitry of the device and having an enclosed battery compartment with an external access and having an interior surface remote from said external access, said remote surface having one or more minimal-sized peripheral openings therein; a cover member having a pair of notches in the internal side thereof mating with said chassis member to thereby enclose the electronic device; and concealed locking means comprising a pair of cantilever spring members each having the fixed end attached to said chassis member and a flange portion formed at the free end removably engaging a corresponding one of said notches in said cover member to thereby secure said cover member to said chassis member, said cantilever spring members being adapted to be actuated by A dual-pronged tool for bending said cantilever members and thereby disengaging said flange portion from said notches to free said cover member from said chassis member.