Ultrasonic tube welding and cutting apparatus and method

Details Ultrasonic tube welding and cutting apparatus and method Ultrasonic tube welding and cutting apparatus and method

1998-03-31

1999-05-25

Sells, James

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156251, 156515, 156530, 1565802, 2281101, 228 11, 264445, 4251742, B32B 3118

Patent

active

059066946

ABSTRACT:
An ultrasonic apparatus and method for charging a coil with a refrigerant gas is described wherein a tube used to convey the gas into the cooling coil is welded shut on both sides of a cutting line so that gas in the tube cannot escape after the charging step has been completed. Die elements to enable such severing of the tube are described with each having corresponding spaced apart welding surfaces and with one of the elements having a cutting edge between its welding surfaces to cut the tube as its internal wall is sealed with an ultrasonic welder.

REFERENCES:
patent: 2568911 (1951-09-01), Cox et al.
patent: 2851580 (1958-09-01), Taylor
patent: 4596352 (1986-06-01), Knapp
patent: 4619397 (1986-10-01), Urban
patent: 4736881 (1988-04-01), Niebuhr
patent: 5730832 (1998-03-01), Sato et al.

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