A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The present invention overcomes the disadvantages of the prior art by providing a pneumatic lift apparatus for a ladder. The apparatus is attachable to a conventional extendable ladder. The apparatus attaches to the lower end of the ladder and includes attachments for attaching the side rails of the ladder. A plate is attached in weight bearing relation between opposing pneumatic pistons which serve to lift the plate relative to the rails.
The present invention overcomes the disadvantages of the prior art by providing a pneumatic lift apparatus for a ladder. The apparatus is attachable to a conventional extendable ladder. The apparatus attaches to the lower end of the ladder and includes attachments for attaching the side rails of the ladder. A plate is attached in weight bearing relation between opposing pneumatic pistons which serve to lift the plate relative to the rails.
PNEUMATIC LIFT APPARATUS FOR LADDER
DEEN FERRELL (author)
2024-02-01
Patent
Electronic Resource
English
IPC:
E06C
LADDERS
,
Leitern
/
B66F
HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
,
Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last