Scissor jack

Details Scissor jack Scissor jack

1985-02-25

1987-04-21

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Single throw lever

Lazy tongs

B66F 300

Patent

active

046590668

ABSTRACT:
A jack is provided for use with a lifting device having two parallel support platforms. The jack has base and top elements, and a scissor mechanism between them. At least one air piston and cylinder assembly actuates the scissor mechanism. To ensure that the jack can be freely moved along the length of a lifting device, a plurality of horizontal rollers and a plurality of vertical rollers are provided. The horizontal rollers are mounted by spring biasing means, so that, when a vehicle weight is taken by the jack, the spring means is compressed. The jack then contacts the support platforms, to prevent further movement of it. The jack can also include two vertical air piston and cylinder assemblies, which are connected on either side of the scissor mechanism.

REFERENCES:
patent: 219850 (1879-09-01), Drian et al.
patent: 2909358 (1959-10-01), Southerwick
patent: 2945551 (1960-07-01), Annin et al.
patent: 3329240 (1967-07-01), Harwood et al.
patent: 4092011 (1978-05-01), Luebke
patent: 4347916 (1982-09-01), Schroder
patent: 4447042 (1984-05-01), Masvi
patent: 4491201 (1985-01-01), Mountz

Affiliated with

Also associated with

Rating

Scissor jack does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Scissor jack, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scissor jack will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-746577