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US 4,046,348 AGranted
Adjustable height stool
OwnerJohn E. Goodwininventor
Life of this patent
Estimating the term…
Abstract
A stool having a base and a seat relatively adjustable to the base by a plurality of vertical cylindrical telescoping sections supporting the seat and fixed to the base. Radial retaining lugs fixed to telescoping rods housed within the cylindrical telescoping sections are received within slots in the sidewalls of the telescoping sections to lock the seat in adjusted position. The lugs are biassed by a coil spring between the rods into the slots. The spring is compressed to remove the lugs from the slots to readjust the height of the seat relative to the base.
Claims7
A stool comprising:
- a hollow base,
- a seat,
- vertical telescoping support means between the interior of said base and the bottom of said seat for adjustably moving said seat relative to said base, and
- means between said base and seat for retaining said telescoping support means in a plurality of adjusted vertical positions,
- said telescoping support means including a plurality of cylindrical telescoping sections, the lowermost of said sections being fixed to the interior of said base, the uppermost of said sections being fixed to the bottom of said seat,
- said retaining means including
- a pair of substantially parallel, vertical telescoping rods connected to said base and accessible through said seat housed within the interior of said cylindrical telescoping sections,
- means between said rods urging said rods away from each other, and
- a plurality of vertically spaced lugs on each of said rods received within diametrically opposed slots in the sidewall of said telescoping cylindrical sections.
6 more elements
Dependencies are inferred from the claim text.