Safety leg for a chair

Claim 2

In combination with a chair having a seat and downwardly extending legs to rest upon a floor and an anchoring surface adjacent to the chair, a safety holding leg secured to the undersurface of said seat, with said leg having a top portion, an intermediate and a terminal portion, said safety holding leg including a first articulated joint near the undersurface of the seat to permit the intermediate leg portion, below the said top portion, to be angled laterally from the top portion, and including a second articulated joint remote from the undersurface of the seat to define the extended end of the intermediate portion, with said terminal portion extended beyond the end of the intermediate portion, to be angled with respect to the intermediate portion, whereby the safety holding leg can be shifted to various positions to permit the extended end of the terminal portion to reach and engage an anchoring surface, by a holding means carried by that end of the terminal portion, with said holding means being adapted to connect the terminal portion to the anchoring surface.

Claim 3

In combination with a chair having a seat and downwardly extending legs to rest upon a floor and an anchoring surface adjacent to the chair, a safety holding leg secured to the undersurface of said seat as defined in preceding claim 1, and further defined with said terminal portion end being so connected substantially at a right angle to the anchoring surface by the holding means.

Claim 4

In combination, a chair having a seat and a plurality of supporting legs, and an auxiliary jointed manually adjustable safety dog-leg holding means for the chair, said dog-leg holding means being longer than one of said supporting legs and having an operable piston-cylinder vacuum cup compressible holding means secured to an end of the safety dog-leg holding means and adapting the dog-leg holding means for securement by its vacuum cup means to one of an adjacent horizontal or vertical surface upon operation of the piston-cylinder vacuum cup compressible means, said safety dog-leg holding means comprising plural adjustably jointed rods, and with one of the rods having the piston-cylinder in extension thereof with the piston operable in the cylinder and the vacuum cup extension as a part of the cylinder, whereby operation of the piston in one direction will effectuate a vacuum within the cylinder and vacuum cup means for effecting a vacuum cup vacuum compression for vacuum holding to an adjacent surface when and to which the vacuum cup is first applied, and said longer length of said dog-leg holding means being defined as including the vacuum cup holding means before compression thereof.

Claim 5

In combination, a chair having a seat and a plurality of supporting legs, and an auxiliary jointed manually adjustable safety dog-leg holding means for the chair, said dog-leg holding means being longer than one of said supporting legs and having an operable piston-cylinder vacuum cup compressible holding means secured to an end of the safety dog-leg holding means and adapting the dog-leg holding means for securement by its vacuum cup means to one of an adjacent horizontal or vertical surface upon operation of the piston-cylinder vacuum cup compressible means, said safety dog-leg holding means comprising plural adjustably jointed rods, and with one of the rods having the piston-cylinder in extension thereof with the piston operable in the cylinder and the vacuum cup extension as a part of the cylinder, whereby operation of the piston in one direction will effectuate a vacuum within the cylinder and vacuum cup means for effecting a vacuum cup vacuum compression for vacuum holding to an adjacent surface when and to which the vacuum cup is first applied, and said longer length of said dog-leg holding means being defined as including the vacuum cup holding means before compression thereof.