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US 4,130,263 AGranted
Chairs
AssigneeWilkhahn Wilkening + Hahne GmbH + Co.
InventorHans Roericht
Life of this patent
Estimating the term…
Abstract
A pedestal stool is disclosed having a base carrying a stem on which a seat portion is supported. The base includes a sand-filled, bulbous, ground-engaging bag or sack to enable the stool to be tilted at any angle and held at that angle by virtue of the change in shape of the sack in response to the resultant flow of sand which produces a new equilibrium position for the stool.
Claims7
A seat comprising
- a seat portion,
- a stem carrying the seat portion, and
- a base supporting the stem, the base including
- a support,
- a ground-engaging flexible bag secured to the support and, together with the support, defining a chamber, and
- particulate material substantially filling the support and flowable in the bag to change the shape of the bag in response to displacement of the bag produced by a tilting of the stem whereby to hold the seat in equilibrium in its tilted state.
3 more elements
A pedestal stool comprising
- a base having
- an inverted dished support defining a stem engaging opening,
- a ground-engaging, flexible, bag secured to the support to form a bulbous extension from the underside of the support, and defining with the support an enclosed chamber, and
- sand filling the enclosed chamber to flow within the chamber in response to a displacement of the bag resulting from a tilting of the support whereby to set up a new position of equilibrium in which the support when released will be held in its tilted state,
- an elongate stem having a lower and upper end portion, the lower end portion being engaged in the opening in the support, and
- a seat portion mounted on the upper end portion of the stem.
3 more elements
Dependencies are inferred from the claim text.