Back to results
US 3,939,508 AGranted
Mattress and cushioning construction
AssigneeThomasville Products, Inc.
InventorsErvin T. Hall, Miles E. Talbert, James R. Walsh, Max E. Hinkle
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeThomasville Products, Inc.
InventorsErvin T. Hall, Miles E. Talbert, James R. Walsh, Max E. Hinkle
Estimating the term…
A laminated mattress construction having outer layers of relatively soft, virgin foam material and an inner layer or core made of firmer reground, bonded foam. The thickness and firmness of the core are varied in relation to that of the outer layers to achieve a mattress having an overall compression modulus of at least 3. Individually the outer layers are so constructed as to exhibit a 25% ILD range of 10-45 lbs. and the core is so constructed as to exhibit a 25% ILD range of 20-80 lbs. The mattress is further constructed in horizontally juxtaposed sections with one section having firmness characteristics which differ from another section. Finally a removable mattress covering is provided which permits removal of the foam core and separate cleaning or replacement thereof.
A laminated cushioning construction comprising outer layers of resilient cellular material and an inner layer of reground, bonded, resilient cellular material, the compression modulus of said cushioning construction being at least 3, said inner layer being substantially equal in length and width to said outer layers and having an thickness in the range of 1-5 times the thickness of one of said outer layers, said outer layers having a first firmness ILD value and said inner layers having a second ILD value, said second value being greater than said first value.
Dependencies are inferred from the claim text.