Anvil for ultrasonic slitting apparatus
AssigneeBranson Ultrasonics Corporation
InventorErnest P. Holze, Jr.
Life of this patent
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Abstract
An anvil for an ultrasonic textile slitting apparatus comprises an elongated, flat, substantially rectangular, housing in which a piston is disposed for motion relative to the housing. A mass dimensioned to act as a half wavelength resonator is coupled to the piston and is provided with a slitting implement for establishing responsive to fluid pressure acting upon the piston contact with an ultrasonic horn. The mass is dimensioned to be resonant at a frequency not lower than the resonant frequency of the ultrasonic horn and preferably is dimensioned to be resonant at a frequency somewhat higher than that of the horn. In a typical example, the horn has a resonant frequency of 20 kHz while the mass has a resonant frequency of 25 kHz.
Claims5
An anvil for an ultrasonic slitting device operative in conjunction with a horn dimensioned to be resonant at a predetermined ultrasonic frequency comprising:
- a housing;
- a piston slidably mounted in said housing for limited motion in said housing;
- a mass, dimensioned to be resonant as a half wavelength resonator for ultrasonic energy traveling longitudinally therethrough at a frequency not lower than the resonant frequency of said horn, coupled to said piston for motion therewith;
- a slitting implement fastened to one end of said mass in position for being urged into contact with said horn;
- means coupled to said housing for causing responsive to fluid pressure said piston to be driven toward contact between said slitting implement and said horn, and
- said mass coupled to said piston by a centrally disposed rod secured with one end to said piston and with the other end to said mass substantially at a nodal region of said mass.
Dependencies are inferred from the claim text.