Back to results
US 4,240,193 AGranted
Method of stuffing compressible products into flexible covers
AssigneeCoachmen Industries, Inc.
InventorReuben J. Krein
Life of this patent
Estimating the term…
Abstract
A method of stuffing an aerated expanded flexible filler into a snug fitting cover, wherein air is evacuated from the filler while resting upon a support so as to shrink the filler and permit rapid application of the cover thereto. The apparatus includes a cantilevered chambered support with multiple openings in its filler supporting surface and selectively operable means for withdrawing air from the chamber.
Claims5
A method of applying a flexible covering sheath in close-fitting relation to an air pervious expanded flexible filler, consisting of the steps of
- mounting the filler upon a support having multiple openings selectively connectible with a source of subatmospheric pressure,
- draping a flexible sheet of air impervious material over the filler at substantially all exposed surfaces thereof,
- deaerating and shrinking said filler by connecting said support openings to said source of subatmospheric pressure
- applying said sheath around said deflated filler said sheet and said support, and
- separating said filler sheet and encircling sheath as a unit from said support
- whereby said filler is re-aerated and expanded within said sheath.
3 more elements
Dependencies are inferred from the claim text.