Mobile geometrical form

Details Mobile geometrical form Mobile geometrical form

1978-04-07

1980-07-29

Pinkham, Richard C.

Undertaking

35 73, 156195, 428 7, 428542, 29446, D04D 904

Patent

active

042147476

ABSTRACT:
A mobile geometrical form having two helical sections interdigitally wound into each other about a common axis. The helical sections are of substantially the same radius and are out of phase with respect to each other. Each end of one helical section continues into a twisted loop, which in turn continues into the adjacent end of the other helical section to thereby form a unitary structure. The geometrical form is comprised of a double sided continuous strip of material. Optionally, a tube axially extends through the helical sections and serves to anchor the loops at either end in spaced apart relationship, while permitting translatory motion of the unitary structure therethrough.

REFERENCES:
patent: 1389168 (1921-08-01), Sturm
patent: 3511280 (1970-05-01), Mercier
patent: 3880414 (1975-04-01), Smith et al.
patent: 3884462 (1975-05-01), Rebajes
patent: 3933345 (1976-01-01), Fidi et al.

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