Title: Support leg for bridges

Abstract: Support leg construction for tank portable bridges including a housing or support leg formed by respective inner and outer sleeve members. A longitudinally movable stanchion is guided intermediate the inner and outer sleeves. A hydraulically operable piston member is disposed in the inner sleeve and includes hydraulically operable detent spring ring locking means for selectively locking the piston to the stanchion. A further hydraulically operable spring-ring locking mechanism is fixedly disposed at the open end of the inner sleeve for selectively locking the stanchion in position with respect to the inner and outer sleeves.

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Other info:

Inventors: Soffge, Friedhelm (Kornwestheim, DT)
Albrecht, Gerhard (Illingen, DT)

Application Number: 576443
Filing Date: 1975-05-12
Publication_date: 1976-06-22
Assignee: Dr. -Ing. H.c.F. Porsche Aktiengesellschaft (DT)
Primary Class(es): 14/75 254/93R, 254/110, 405/224
Other Classes:
US Patent Ref:

2954676	Oct, 1960	Guy	61/46.
2967400	Jan, 1961	Grant	61/46.
2997852	Aug, 1961	Suderow	61/46.
3171259	Mar, 1965	Roussez	61/46.
3290007	Dec, 1966	Yeilding	254/106.
3347522	Oct, 1967	Reinmann	254/105.
3435621	Apr, 1969	Johnson	61/46.
3577737	May, 1971	Burleson	61/46.
3763654	Oct, 1973	Matsushita	254/105.
3845514	Nov, 1974	Wagner	14/1.

Other Refs:
Primary Examiner: Byers, Nile C.
Assistant Examiner:
Attorney: Craig & Antonelli