1979-08-13
1981-07-14
Apley, Richard J.
Undertaking
272 85, 272111, 272112, A63B 900, A63G 900
Patent
active
042782503
ABSTRACT:
A first horizontally-directed spacing and connecting member extends between and interconnects the upper ends of a first plurality of aligned, but spaced-apart, vertically-directed columns, a second horizontally-directed spacing and connecting member extends between and interconnects an intermediate portion of one of the first plurality of vertically-directed columns with the upper ends of two columns of a second plurality of vertically-directed columns, a third horizontally-directed spacing and connecting member extends between and interconnects an intermediate part of a second of the first plurality of vertically-directed columns with the upper ends of two columns of the second plurality of vertically-directed columns, and rung-like spacers interconnect the second and third horizontally-directed spacing and connecting members to constitute an overhead exercise ladder. The first plurality of vertically-directed columns includes at least three columns, the second plurality of vertically-directed columns also includes at least three columns and the three horizontally-directed spacing and connecting members act to stabilize and stiffen all of the columns of the first plurality and second plurality of columns.
REFERENCES:
patent: D135935 (1943-07-01), Miller
patent: D178663 (1956-09-01), Horowitz
patent: D180402 (1957-06-01), Harris
patent: D222487 (1971-10-01), Korte
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patent: 3601397 (1971-08-01), Carlin
patent: 3719358 (1973-03-01), Aaron
patent: 3850428 (1974-11-01), Zuber
patent: 4084812 (1978-04-01), Melrose et al.
Baynes William R.
Hock Donal D.
Apley Richard J.
Turco Manufacturing Co.
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