Method and apparatus for determining cigarette filter rod pressu

Details Method and apparatus for determining cigarette filter rod pressu Method and apparatus for determining cigarette filter rod pressu

1980-07-07

1982-07-27

Howell, Kyle L.

Measuring and testing

With fluid pressure

Dimension, shape, or size

73 375, 73 38, 356387, G01B 1308

Patent

active

043411096

ABSTRACT:
Method and apparatus for determining true cigarette filter rod pressure drop, especially of nonwrapped and soft wrapped filter rods when the circumference thereof is being compressed by an encapsulation method as by an elastic sleeve, the pressure drop and circumference of the elastic sleeve and the filter rod encapsulated therewithin being measured simultaneously, and then through a fifth power relation true pressure drop is determined.

REFERENCES:
patent: 3668928 (1972-06-01), Strydom
patent: 3955406 (1976-05-01), Strydom
patent: 4069704 (1978-01-01), Grant, Jr. et al.
patent: 4155248 (1979-05-01), Wagner et al.
patent: 4213707 (1980-07-01), Evans, Jr.

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