04726087 is referenced by 47 patents and cites 37 patents.

A foam pillow has two main support surfaces on opposing sides thereof. One surface includes convolutions defining a relatively flat profile and the other surface includes longitudinal ribs of arcuate cross-section, which define a curved profile having at least two prominent lobes of differing heights and a central trough. The pillow is particularly adapted for support of a person's head in the trough, with the user's neck received on one of the lobes. Reversal of the lobes permits variation in the amount of neck support. The ribs comprise spherical ridges and have circular channels separating their bases to provide a heat and moisture dissipation function. The curved support surface may include cross-hatching at various intervals to provide extra dispersion of pressure.

Title
Contoured-head and neck foam pillow
Application Number
6/899535
Publication Number
4726087
Application Date
August 22, 1986
Publication Date
February 23, 1988
Inventor
John K Luke
Greer
SC, US
Daniel J Schaefer
Greenville
SC, US
Agent
Dority & Manning
Assignee
Span America Medical Systems
SC, US
IPC
A47C 20/00
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