Liquid purification or separation – Filter – With pump – gas pressure – or suction source
Patent
1979-05-07
1981-02-10
Sever, Frank
Liquid purification or separation
Filter
With pump, gas pressure, or suction source
210452, 210455, 210462, B01D 3502
Patent
active
042500397
ABSTRACT:
A transmission filter has a filter envelope located inside a sealed rigid container, with an intake port and a corresponding intake opening to the interior of the filter envelope located at the bottom of the container. A suction outlet port at the top of the container conveys transmission fluid passing through the filter envelope to the suction line of the transmission system. The filter envelope is formed of thermoplastic fiber felt, with two sheets or layers of the felt being ultrasonically welded to provide a continuous fluid-tight seal for the filter envelope. Ultrasonic welding of the felt is achieved by an apparatus and method that is also useful in other types of ultrasonic welding of thermoplastic fabrics. An ultrasonic horn to be vibrated at an ultrasonic frequency is provided with a knurled surface corresponding to the area to be welded. The ultrasonic horn presses a thermoplastic fabric against a stationary material to which it is to be welded, such as another sheet of the same fabric or another fabric the motion of which is limited by placing it on a knurled surface formed on a stationary plate.
REFERENCES:
patent: 3023905 (1962-03-01), McDougal et al.
patent: 3108065 (1963-10-01), McMichael
patent: 3419151 (1968-12-01), Smith et al.
patent: 3785970 (1974-01-01), Hodgkins
patent: 3875059 (1975-04-01), Maschino
Cozzi John F.
Maczko, Jr. Edward M.
Sever Frank
Wire Cloth Products, Inc.
LandOfFree
Transmission filter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transmission filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission filter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1664489