Suction roll of a paper machine having a noise damping chamber

Details Suction roll of a paper machine having a noise damping chamber Suction roll of a paper machine having a noise damping chamber

1996-04-19

1999-07-20

Alvo, Steven

Paper making and fiber liberation

Apparatus

Running or indefinite length product forming and/or treating...

162370, 162371, 417 4, 417 5, D21F 148, D21F 150, D21F 310

Patent

active

059252200

ABSTRACT:
A suction roll for a paper machine or the like including a perforated annular roll shell which is rotatable. A stationary suction box inside the roll shell with respect to which the shell rotates. The suction box is defined between two circumferentially spaced sealing ledges at the roll shell. A noise dampening chamber on the downstream side of the suction box defined by a further sealing ledge at the roll shell. A conduit communicating to the noise damping chamber to allow increased pressure in the chamber which reduces noise. At least one of a snifter valve, a suction blower, an air pump and a water pump communicating to the conduit for selectively adjusting the pressure in the noise damping chamber for damping roll noise.

REFERENCES:
patent: 2857823 (1958-10-01), Thiessen
patent: 3981319 (1976-09-01), Holt
patent: 4224104 (1980-09-01), Kankaanpaa
patent: 4564418 (1986-01-01), Blumle
patent: 4714523 (1987-12-01), Sawyer, Jr. et al.
patent: 5466343 (1995-11-01), Kankaanpaa
E.J. Justus et al., Suction Roll Noise Reduction, TAPPI, Dec. 1956, vol. 39, No. 12, pp. 851-857.

Affiliated with

Also associated with

Rating

Suction roll of a paper machine having a noise damping chamber does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Suction roll of a paper machine having a noise damping chamber, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Suction roll of a paper machine having a noise damping chamber will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1318913