Hoist and supplemental support system
OwnerAlfred L. Finleyinventor
Life of this patent
Estimating the term…
Abstract
The hoist comprises a base, first and second lower arms, first and second upper arms, and one or more blocking members. The first and second lower arms are pivotally coupled to the base. The first lower arm is pivotally coupled to the first upper arm. The second lower arm is pivotally coupled to the second upper arm. The lower arms and upper arms are adapted to move between an unraised condition to a raised condition. Each of the blocking members is adapted to move between a supporting position and a non-supporting position. Each blocking member, when in the supporting position, prevents the lower arms and upper arms from moving from the raised condition to the unraised condition.
Claims16
A supplemental support system comprising:
- a bracket, a blocking member, and a spring;
- the blocking member being adapted to slidingly move within a through opening;
- the blocking member being further adapted to be moved from a supporting position to a non-supporting position;
- and
- the spring being adapted to bias the blocking member towards the non-supporting position.
A hoist, comprising:
- a base, first and second lower arms, first and second upper arms, and one or more blocking members;
- the first and second lower arms each being pivotally coupled to the base;
- the first lower arm each being pivotally coupled to the first upper arm;
- the second lower arm being pivotally coupled to the second upper arm;
- the lower arms and upper arms being adapted to move between an unraised condition to a raised condition;
- each of the one or more blocking members being adapted to move between a supporting position and a non-supporting position;
- wherein, each blocking member, when in the supporting position, prevents the lower arms and upper arms from moving from the raised condition to the unraised condition.
Dependencies are inferred from the claim text.