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US 7,070,573 B2Granted
Traction collar
OwnerStefan Axelssoninventor
Life of this patent
Estimating the term…
Abstract
A traction collar includes a body having an axial extension. The body is equipped with inflatable sections and a device for supplying air to the sections or to dispose of air from the sections. The traction collar is manufactured from cellular plastic material, or a material having corresponding properties. Each of the sections has at least one compartment provided in the body and an air cushion is provided in the compartment.
Claims17
A traction collar comprising:
- a body having at least two slot-shaped compartments and an air cushion received in a respective one of said at least two compartments;
- and
- means for supplying air to said air cushion or to dispose of air from said air cushion,
- said body being a cellular plastic material, and
- said air cushion extending in a longitudinal direction of said compartments less than a length of said compartments when said air cushion is in an inactive position,
- wherein said at least two slot-shaped compartments are separated from each other, two of said compartments are in planes that are parallel to each other.
3 more elements
A traction collar comprising:
- a body having at least one slot-shaped compartment and an air cushion received in a respective one of said at least one compartment;
- and
- means for supplying air to said air cushion or to dispose of air from said air cushion,
- said body being a cellular plastic material, and
- said air cushion extending in a longitudinal direction of said compartment less than a length of said compartment when said air cushion is in an inactive position,
- wherein the body has two air cushions that are separated from each other and located at substantially the same level.
3 more elements
A traction collar comprising:
- a body having an axial extension, said body having a plurality of slot-shaped compartments, each of said compartments having an air cushion member therein, said air cushion member being spaced apart from end walls of a respective one of said compartments, when said air cushion member is in an inactive position;
- and
- means for supplying air to said air cushion member or to dispose of air from said air cushion member,
- wherein the body is manufactured from an elastic plastic material.
1 more element
A traction collar comprising:
- a substantially conical, plastic body having an axially extending slot and being divided into plural sections, each of said plural sections having a respective slot-shaped cavity;
- an inflatable member within each said respective cavity;
- and
- an inflation/deflation device that inflates/deflates said inflatable member
- said inflatable member extending in a longitudinal direction of the cavity, said inflatable member being spaced apart from end walls of said cavity in an inflated position and in a deflated position.
2 more elements
Dependencies are inferred from the claim text.