Patent ID: 7357139

Claim:
A stair-adjustable crutch comprising a crutch frame: a crutch foot having a top segment carried by said crutch frame and a bottom segment; an adjusting cuff fixed to said bottom segment of said crutch foot; a first pair of spaced-apart cone slots provided in said adjusting cuff in substantial alignment with said bottom segment of said crutch foot; a second pair of spaced-apart cone slots provided in said adjusting cuff in angular relationship with respect to said first pair of spaced-apart cone slots; an adjusting rod removably engaging said adjusting cuff; a pair of spaced-apart resilient rod legs extending from said adjusting rod into said adjusting cuff; and a pair of shaped locks provided on said rod legs for engaging said first pair of spaced-apart cone slots when said top segment and said crutch frame are positioned in alignment with said bottom segment and said locks selectively engaging said second pair of spaced-apart cone slots when said top segment and said crutch frame are positioned in angular relationship with respect to said bottom segment of said crutch foot.