Air filter unit

Details Air filter unit Air filter unit

1986-01-30

1987-05-12

Nozick, Bernard

Gas separation

With means securing or retaining separating media

Unit or cohesive sheet-like media in flow line or frame

55525, 2104932, B01D 4610

Patent

active

046646841

ABSTRACT:
An air filter unit is provided for use with an internal combustion engine. The unit includes inner and outer sleeves, a filter medium disposed intermediate the sleeves, and end plates affixed to and overlying the corresponding ends of the sleeves and filter medium. At least the outer sleeve is formed from a blank of foraminous, relatively stiff, sheet material with the periphery thereof including burr-forming peripheral portions and an elongated peripheral portion folded back upon itself to form a hem-like segment. The blank is then formed into a cylindrical sleeve with the hem-like segment overlapping and being affixed to a burr-forming peripheral portion opposite the hem-like segment so as to form an elongated seam extending the length of the sleeve. The overlapped seam-forming peripheral portion being exposed only on an interior surface of the sleeve.

REFERENCES:
patent: 846482 (1907-03-01), Layne
patent: 3399516 (1968-09-01), Hough et al.
patent: 3764425 (1973-10-01), Neff et al.

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