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US 4,021,871 AGranted
Process and structure for pillow making
OwnerHarold Wortmaninventor
Life of this patent
Estimating the term…
Abstract
A pillow cushion construction of foam material which has improved resilience and shape retention, and which facilitates the manufacture of pillow cushions. An upper and lower portion of the cushion provide a cavity which cooperates with a fibrous filler towards achievement of these results.
Claims7
A pillow cushion construction comprising:
- a plurality of resilient foam panels forming upper and lower portions of said cushion;
- raised projections on one side of said upper and lower portions respectively;
- said projections on said upper portion directly opposing said projections on said lower portion when said portions of said cushion are attached together at their edges by cushion attachment means;
- and
- a fibrous textile filler positioned between said opposing projections on said upper portion and said projections on said lower portion, when said edges of said cushions are joined by said cushion attachment means,
- said fibrous filler also occupying a position separating adjacent protrusions from one another on each of said upper and lower portions respectively, while yielding to provide an amount of interlace between said protrusions on said upper and lower portions, where said fibrous filler occupies an internal cushion cavity formed by said upper and lower portions of said cushion.
3 more elements
Dependencies are inferred from the claim text.