Laterally extensible ladder
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Oct 10, 2000
Grant Date -
N/A
app pub date -
Sep 10, 1999
filing date -
Sep 10, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A laterally extensible ladder comprises first and second uprights having a plurality of adjacent rung assemblies mounted therebetween. Each rung assembly includes a first hollow rung element that defines a rung axis and a second rung element received in the first rung element. The second rung element is movable along the rung axis for adjusting the length of the rung assembly, hence adjusting the width of the ladder. At least one rung assembly includes a structure for releasably holding the rung assemblies at a selected width configuration.
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