Method of making a mattress overlay

Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

83 13, 83861, 264321, A47C 2714, B29C 6700

Patent

active

055805043

ABSTRACT:
A method of making a polyurethane foam mattress overlay so that it has several sections defined in a relatively flat support surface thereof. The sections are longitudinally disposed so as to correspond with different parts of a user's body. Each such section has predetermined support characteristics which are selected in relationship with such characteristics for the other sections so as to define systematized support. Specific numerical ranges and interrelationships for such sections are preferred. A plurality of projections are formed in each surface section. In general, the cross-sectional area of such projections at the overlay support surface or at a given depth therefrom is the same within each section, but differs from one section to another. Separation distances between such projections may also vary with the respective sections. The resulting tailored support characteristics in respective sections provide engineered support for all parts of a user's body. Side edges of the projections may be bevelled and/or include a radius of curvature to enhance independent action of the projections. Channels for dissipating heat and moisture may be provided, and have characteristics which vary with the different support sections. An effectiveness index takes into consideration the thickness, indentation load deflection (i.e., stiffness), and density of a given pad, to assist practioners in selecting appropriate embodiments of the invention.

REFERENCES:
patent: 2638156 (1953-05-01), Berman
patent: 3828378 (1974-08-01), Flam
patent: 3885257 (1975-05-01), Rogers
patent: 4110881 (1978-09-01), Thompson
patent: 4279044 (1981-07-01), Douglas
patent: 4573456 (1986-03-01), Spann

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method of making a mattress overlay does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making a mattress overlay, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making a mattress overlay will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-782818

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.