Low Profile Drop Table
AssigneeBBM Railway Equipment, LLC
InventorRyan W. Knapp
Life of this patent
Estimating the term…
Abstract
A lifting apparatus having two rails spaced apart at a distance and two lifting mechanisms, each lifting mechanism supporting one of the two rails. A platform is disposed between the two rails such that movement of the lifting mechanisms causes the rails to displace relative to the platform. A base has the two lifting mechanisms connected thereto and the platform is connected to the base. The base moves horizontally along a floor. Further, the floor may be disposed in a pit and the travel of the rails between minimum and maximum rail heights may be greater than 62.5% of the depth of the pit. The minimum rail height may be less than 50% of the depth of the pit.
Claims26
A lifting apparatus comprising:
- two rails spaced apart at a distance;
- two lifting mechanisms, each lifting mechanism supporting one of the two rails;
- a platform disposed between said two rails such that movement of at least one of said lifting mechanisms causes at least one of said rails to displace relative to said platform;
- and
- a base, said two lifting mechanisms connected to said base and said platform connected to said base.
A lifting apparatus comprising:
- two rails spaced apart at a distance;
- two lifting mechanisms, each lifting mechanism supporting one of the two rails;
- a platform disposed between said two rails such that movement of at least one of said lifting mechanisms causes at least one of said rails to displace relative to said platform;
- wherein said two lifting mechanisms each comprise:
- two links joined to each other in a medial section by a pivot;
- and
- a rotating pivot located at one end of each of said two links, another end of each of said two links having a sliding connection such that rotation of said two links about their respective rotating pivots causes the sliding connections to move relative to the rotating pivots to cause vertical displacement of said pivot.
A lifting apparatus comprising:
- two rails spaced apart at a distance;
- two lifting mechanisms, each lifting mechanism supporting one of the two rails;
- a platform disposed between said two rails such that movement of at least one of said lifting mechanisms causes at least one of said rails to displace relative to said platform;
- a base;
- said two lifting mechanisms connected to said base;
- said platform connected to said base;
- said base adapted to move horizontally along a floor;
- wherein said two lifting mechanisms each comprise:
- two links joined to each other in a medial section by a pivot;
- and
- a rotating pivot located at one end of each of said two links, another end of each of said two links having a sliding connection such that rotation of said two links about their respective rotating pivots causes the sliding connections to move relative to the rotating pivots to cause vertical displacement of said pivot.
Dependencies are inferred from the claim text.