Head support cushion

Claim 2

A cushion for supporting simultaneously the front and side of the head of a user reposing in a sitting or semi-reclining position, said cusion comprising a naturally curved relatively stiff body, the length and curvature of the body being such that when the body is positioned on the user's shoulder at one side of the midsagittal plane, the body extends from a location adjacent to the mastoid process behind the user's ear forwardly under the chin to a point beyond the midsagittal plane to the mental terminus of the user's mandible so that said body provides positive anatomically correct support for the user's head no matter which direction the head nods or tilts to said one side of the midsagittal plane.

Claim 3

The cushion defined in claim 1 wherein the body has a transverse cross section which is generally triangular with a corner of the triangle being positioned at the perimeter of the body.

Claim 4

The cushion defined in claim 1 wherein an enlargement is formed at one end of said body.

Claim 5

The cushion defined in claim 3 wherein enlargements are formed at both ends of said body.

Claim 6

The cushion defined in claim 4 wherein said enlargements are oriented at different angles about the axis of curvature of said body.

Claim 7

The cushion defined in claim 1 wherein said body is a solid.

Claim 8

The cushion defined in claim 1 wherein said body comprises an outer cover and resilient matter filling said cover.

Claim 9

The cushion defined in claim 1 wherein said body comprises a fluid-tight bladder and means for filling said bladder with fluid.

Claim 10

The cushion defined in claim 1 wherein said body has upper and lower walls which are concave toward each other from end to end.

Claim 11

The cushion defined in claim 9 wherein said upper and lower walls of the body have similar curvatures corresponding more or less to segments of cylinders whose axes are spaced parallel above and below the transverse medial plane of said body.

Claim 12

The cushion defined in claim 10 wherein said axes lie in a plane rotated about 45° from said midsagittal plane when said body is positioned on said shoulder.

Claim 13

The cushion defined in claim 10 wherein said axes are spaced 1 to 2.5 inches from said transverse medial plane and each said cylindrical segment has a radius of 16 to 18 inches.

Claim 14

The cushion defined in claim 1 wherein said body has an inner radius of 2 to 4 inches and an arc length of 5 to 6 inches.

Claim 15

A cushion for supporting the head of a user reposing in a sitting or semi-reclining position, said cushion comprising a relatively stiff body constituting a segment of a torus, said body having a transverse cross-section which is generally triangular with a corner of the triangle beig positioned at the permeter of the body and said body having an inner radius of two to four inches and an arc length of five to six inches, the length and curvature of the body being such that when the body is positioned on the user's shoulder at one side of the midsagittal plane, the body extends from a location adjacent to the mastoid process behind the user's ear forwardly to a point beyond the midsagittal plane to the mental terminus of the user's mandible so that said body provides positive anatomically correct support for the user's head no matter which direction the head nods or tilts to one side of the midsagittal plane, and enlargements formed at both ends of said body, said enlargements being oriented at different angles about the axis of curvature of said body.

Claim 16

A cushion for supporting the head of a user reposing in a sitting or semi-reclining position, said cushion comprising a relatively stiff body constituting a segment of a torus, said body having a transverse cross-section which is generally triangular with a corner of the triangle beig positioned at the permeter of the body and said body having an inner radius of two to four inches and an arc length of five to six inches, the length and curvature of the body being such that when the body is positioned on the user's shoulder at one side of the midsagittal plane, the body extends from a location adjacent to the mastoid process behind the user's ear forwardly to a point beyond the midsagittal plane to the mental terminus of the user's mandible so that said body provides positive anatomically correct support for the user's head no matter which direction the head nods or tilts to one side of the midsagittal plane, and enlargements formed at both ends of said body, said enlargements being oriented at different angles about the axis of curvature of said body.