Method of making a scouring pad or the like
AssigneeACS Industries, Inc.
InventorGeorge B. Botvin
Life of this patent
Estimating the term…
Abstract
The invention contemplates a scouring-pad construction wherein an outer tubular envelope is inside-out loosely knitted around a loosely fabricated pliant stuffer material, given lengths of such materials being secured to establish end closure along generally transverse alignments. In a preferred form, the inner and outer materials are both knitted, and thermoplastic filament is an important component of both knits, the ends being heat-sealed for permanent closure by local fusion of such filaments.
Claims14
The method of making a scouring pad or the like which comprises loosely knitting an elongate pliant outer tube around a loosely knitted elongate pliant inner tube of stuffing material, one of said tubes being inside-out knitted with respect to the other, whereby the grain of adjacent surfaces of said tubes may be in essentially the same predominant direction, the knitted material of the outer tube including a filamentary thermoplastic element, locally compressing the outer tube upon the stuffing material at longitudinally spaced locations which include said thermoplastic element, thereby defining first and second transversely extending end alignments of a pad, locally securing the compressed materials at said alignments, such securing including the step of local heating of the thermoplastic element along said end alignments, and severing individual pads thus end-secured.
The method of making a scouring pad or the like which comprises loosely knitting an elongate pliant outer tube around loosely fabricated elongate pliant inner stuffing material, one of said tubes being inside-out knitted with respect to the other, whereby the grain of adjacent surfaces of said tubes may be in essentially the same predominant direction, the knitted material of the outer tube including a filamentary thermoplastic element, locally compressing the outer tube upon the stuffing material at longitudinally spaced locations which include said thermoplastic element, thereby defining first and second transversely extending end alignments of a pad, locally securing the compressed materials by local heating of the thermoplastic element at said alignments, and severing individual pads thus end-secured, the effective longitudinal extent of the secured region at each such alignment extending on opposite sides of the alignment of serverance, and the securing including the step of local heating on opposite sides of the alignment of severance, thus establishing two closely adjacent secured regions which are respectively on longitudinally opposite sides of the alignment of severance.
Dependencies are inferred from the claim text.