Method for forming elastic ventilation cushion

Details Method for forming elastic ventilation cushion Method for forming elastic ventilation cushion

2005-03-01

2005-03-01

Bryant, David P. (Department: 3726)

Metal working

Method of mechanical manufacture

Multiperforated metal article making

C029S091100, C083S660000, C083S695000, C083S678000

Reexamination Certificate

active

06860012

ABSTRACT:
A method for forming elastic ventilation cushion comprises the steps of arranging a plurality of needle seats at two banks, an upper bank and a lower bank, and a straight gap is formed between the upper bank and the lower bank, wherein one edge of each needle seat near the other bank is mounted with a plurality of slender needles, wherein each distal end of the needles is folded as a distal folded section; passing an elastic cushion through the gap; and moving the needle seats at the upper and lower banks so that the length of the gap is enlarged or reduced, thereby, the needles on the needle seats will pierce the elastic cushion and the distal folded section will tear surfaces of the elastic cushion to form a plurality of elastic ventilation slits on the elastic cushion. Moreover, the needle seats can be replaced by needle rollers.

REFERENCES:
patent: 1919984 (1933-07-01), Murphy
patent: 2388069 (1945-10-01), Meaker et al.
patent: 2754581 (1956-07-01), Thomas
patent: 3097124 (1963-07-01), Denenberg
patent: 3526349 (1970-09-01), Moro
patent: 3645830 (1972-02-01), Warp
patent: 4184619 (1980-01-01), Stewart et al.
patent: 4326909 (1982-04-01), Slavik
patent: 4454891 (1984-06-01), Dreibelbis et al.
patent: 5066531 (1991-11-01), Legg et al.
patent: 5151077 (1992-09-01), Cole et al.
patent: 5313863 (1994-05-01), Aihara et al.
patent: 5690179 (1997-11-01), Dickson

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