Lifting device and methods for pulling up overturned vehicles and other structures
AssigneeB/A Products Co.
InventorsJohn D. Collins, Mark Bailey
Life of this patent
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Abstract
Lifting devices include a tube with a first slot and a second slot. The devices also include an insert with a first insert projection connected to a second insert projection by a central portion. The first insert projection extends through the first slot and the second insert projection extends through the second slot. A first plate and a second plate are each connected to the central portion of the insert. Additionally provided are methods of lifting a tanker truck or other structures using the disclosed lifting devices.
Claims20
A lifting device, comprising:
- a tube comprising a first slot and a second slot;
- an insert comprising a first insert projection connected to a second insert projection by a central portion, wherein the first insert projection extends through the first slot and the second insert projection extends through the second slot;
- and
- a first plate and a second plate, wherein each of the first plate and the second plate are connected to the central portion of the insert,
- wherein the first insert projection has opposing first and second ends along a longitudinal axis, and
- wherein the tube has a rounded outer surface positioned axially beyond each of the first and second ends of the first insert projection and arranged in line with the longitudinal axis of the first insert projection.
A method of lifting a tanker truck, comprising:
- obtaining a lifting device, comprising
- a tube comprising a first slot and a second slot,
- an insert comprising a first insert projection connected to a second insert projection by a central portion, wherein the first insert projection extends through the first slot and the second insert projection extends through the second slot, and
- a first plate and a second plate, wherein each of the first plate and the second plate are connected to the central portion of the insert;
- inserting the lifting device into a hatch of a tank of a tanker truck;
- and
- applying an upwards force to the lifting device.
A lifting device, comprising:
- a tube comprising a first slot and a second slot;
- an insert comprising a first insert projection connected to a second insert projection by a central portion, wherein the first insert projection extends through the first slot and the second insert projection extends through the second slot;
- and
- a first plate and a second plate, wherein each of the first plate and the second plate are connected to the central portion of the insert,
- wherein the first insert projection spans a first length along a longitudinal axis of the lifting device,
- wherein the second insert projection spans a second length along the longitudinal axis, and
- wherein the first length of the first insert projection is shorter than the second length of the second insert projection.
Dependencies are inferred from the claim text.