Package making – Methods – Applying a partial cover
Patent
1985-03-27
1986-06-24
Silbaugh, Jan
Package making
Methods
Applying a partial cover
53477, 53585, 65103, 65110, 264512, 264516, 264519, 264571, 425388, B29C 5700, B29D 2200
Patent
active
045961093
ABSTRACT:
An apparatus for forming a tube including a base, a pair of legs secured to the ends of the base, and a holder base attached to the base. A tube holder for holding the tube is connected to the holder base. The tube holder has a structure defining a pair of diametrically opposed openings. A pair of soldering irons is oppositely secured with respect to each other in proximity to the top of the pair of legs. Each soldering iron has a hot end that generally registers with one of the opposed openings such as to be in close proximity to the tube being held by the tube holder in order to soften the material of the tube in the area contiguous to the openings. Power is conducted and supplied to each of the soldering irons. Vacuum is drawn on top of the tube to suck or pull inward the tube in the spots being softened from the heat of the pair of soldering irons. A brass conduit is positioned in the tube in order to cool the material of the tube in spots being softened and simultaneously therewith for ceasing the inward movement of the softened spots. A process for crimping a tube to retain an antibody or antigen coated ball, or the like, therein, comprising the steps of positioning the tube containing the coated ball, or the like, in a tube holder having a pair of opposed openings. The ends of the pair of soldering irons are registered with the opposed opening and in close proximity to the top of the tube. The process additionally includes the steps of heating with the pair of soldering irons the sides of the tube in the area facing the pair of opposed openings of the tube holder in order to soften the area; drawing a vacuum on the tube in order to pull inward the area of the tube being softened from the heat of the pair of soldering irons; and ceasing the inward movement of the pair of softened spots to crimp the tube.
REFERENCES:
patent: 1882925 (1932-10-01), Rock
patent: 2423237 (1947-07-01), Haslacher
patent: 3350186 (1967-10-01), Meinhard
patent: 3894902 (1975-07-01), Hough et al.
patent: 3998919 (1976-12-01), Urquhart
patent: 4032281 (1977-06-01), Rakovsky
patent: 4097570 (1978-06-01), Dickson et al.
patent: 4215087 (1980-07-01), Mathison
Scientific Laboratories, Inc.
Silbaugh Jan
Widdowson John H.
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