Donald F. Engel | Researchain

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Featured researches published by Donald F. Engel.

Archive | 1986

Cylindrical air filter with lightweight housing and radially directed seal

Donald F. Engel; Steven Scott Gieseke

Archive | 1998

Reverse flow air filter arrangement and method

Donald F. Engel; Dolan Bartels; John R. Hacker; Bruce R. Crenshaw; Don Harold

Archive | 2003

Air filter having fluted filter media

Larry R. Nepsund; Bradley A. Kuempel; Donald F. Engel; Bruce Allen Boehrs; Sheldon Anderson; Richard L. Bucholtz; Thomas John Lundgren

Archive | 2005

Filter arrangements; housing; assemblies; and, methods

Paul R. Coulonvaux; Johan G. Dewit; Cary Donald Olson; Thomas G. Miller; Marty A. Barris; Wayne R. W. Bishop; Donald F. Engel; Steven Campbell; Johan Fobe

Archive | 2001

Reverse flow air filter arrangement

Donald F. Engel; Dolan Bartels; John R. Hacker; Bruce R. Crenshaw; Don Harold

Archive | 2004

Filter arrangements; side-entry housings; and methods

Larry R. Nepsund; Bradley A. Kuempel; Donald F. Engel; Bruce Allen Boehrs; Sheldon Anderson; Richard L. Bucholtz; Steve Campbell; Thomas John Lundgren

Archive | 1991

Quarter-turn fastener

Donald F. Engel; Steven Scott Gieseke

Archive | 1992

Connector system for air transfer ducts

Donald F. Engel

Archive | 2014

Filter arrangements, housings, assemblies, and methods

Paul R. Coulonvaux; Johan G. Dewit; Cary Donald Olson; Thomas G. Miller; Marty A. Barris; Wayne R. W. Bishop; Donald F. Engel; Steven Campbell; Johan Fobe

Archive | 1989