Playground equipment including vandal resistant mechanical assem

Details Playground equipment including vandal resistant mechanical assem Playground equipment including vandal resistant mechanical assem

1985-05-30

1987-07-28

Apley, Richard J.

Undertaking

403260, A63B 900

Patent

active

046827722

ABSTRACT:
Vandal resistant playground equipment is provided including a pair of parallel U-shaped pipes provided with outwardly extending flange plates which support tubular sleeves which extend in transverse alignment from opposite sides of each flange plate. Horizontal pipes have opposite ends received in the tubular sleeves and extend between the flanges of the U-shaped pipes and are bolted to the pipes by bolts enclosed within one sleeve and extending through an aperture in the flange and engaged with a threaded plug in the end of each pipe.

REFERENCES:
patent: 1460928 (1923-07-01), Tilden
patent: 2815972 (1957-12-01), Lagervall
patent: 3297063 (1967-01-01), McGuire
patent: 4252313 (1981-02-01), Skalka
patent: 4270872 (1981-06-01), Kiyosawa

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