Chairs and seats – Movable bottom – Bottom and back movable as a unit
Patent
1993-07-12
1994-11-15
Cranmer, Laurie K.
Chairs and seats
Movable bottom
Bottom and back movable as a unit
297 4, 29734426, A47C 102
Patent
active
053641639
ABSTRACT:
A new and improved adjustable leg chair includes a seat assembly and a leg assembly supporting the seat assembly. The leg assembly includes a seat support member supporting the seat assembly and leg members supporting the seat support member. The leg assembly also includes spike members connected to the leg members. The spike members project from the leg members in a direction opposite of the seat support member. The spike members are capable of penetrating into a sloped ground surface. The leg members may include two vertical portions connected to the seat support member and a transverse member connected between the two vertical portions. The vertical portions and the transverse member are in the form of a unified, integrated U-shaped leg member. The spike members are supported by and project from the transverse members. A swivel assembly is located between the seat assembly and the leg assembly. The swivel assembly supports the seat assembly and the swivel assembly is supported by the leg assembly. Two of the leg members include a telescopic length adjusting assembly capable of adjusting an effective length of the leg members. The leg members include threaded wells for receiving removable and replaceable complementary threaded spike members.
REFERENCES:
patent: 2711787 (1955-06-01), Hallowell
patent: 4169625 (1979-10-01), Petersen
patent: 4226398 (1980-10-01), Freber
patent: 4266748 (1981-05-01), Dalton
patent: 4948197 (1990-08-01), Sansing
patent: 5110184 (1992-05-01), Stein et al.
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