Waterproof digital lap counter

Claim 1

A waterproof lap counter comprising: a waterproof counter case of sufficiently small size to be contained within the palm of a hand of a swimmer or within the underside of a foot of a swimmer, said counter case housing all components necessary to count laps and including (i) an outer housing having an opening; (ii) an inner housing slidably and nonrotatably mounted within the opening of said outer housing; (iii) means for biasing said inner housing outwardly from said outer housing; (iv) a numeric display; (v) pressure actuated means for providing an input signal indicative of a lap count including a count switch having a plurality of spaced contacts attached to said inner housing and a contact member attached to said outer housing, said plurality of spaced contacts being spaced apart from said contact member by said biasing means to define an open position of said count switch, said inner housing being operable to move inwardly relative to said outer housing to define a closed position of said count switch in which said spaced contacts abut said contact member to produce said input signal upon abutment of said inner housing against a wall of a swimming pool during the normal stroke of a swimmer having the waterproof lap counter attached to an extremity; (vi) means for incrementally counting receiving said input signal and providing an output signal operable to increment said number display; and (vii) a power source providing power to said numeric display and said incrementally counting means; and means for attaching said waterproof counter case to an extremity of a swimmer whereby operation of said pressure actuated means automatically increments said numeric display thereby indicating the total number of laps traversed.