Patent ID: 11919757
Assignee: nan
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A scissor jack, comprising:
four arms hingedly arranged to provide two opposite elbows between a base and a load support;
a pair of trunnions with a first outer trunnion at a first outer elbow and a second threaded trunnion at a second outer elbow opposite to the first outer elbow connected through a threaded shaft;
an inner third trunnion passing through the threaded shaft, wherein the inner third trunnion is configured to allow free rotational motion of an unthreaded section of the threaded shaft,, wherein the inner third trunnion is connected to two rods to form a yoke, the yoke is configured to slideably pass through the first outer trunnion of the first outer elbow to extend beyond the first outer elbow,, wherein the scissor jack comprises springs or any other retaining mechanism attached to a pair of levers, and, wherein the pair of levers are configured to return to their original position, during lowering of the scissor jack.