Oil filter housing
AssigneeBaldwin Filters, Inc.
InventorsGene W. Brown, Jeffrey E. D. Rogers
Life of this patent
Estimating the term…
Abstract
A housing system for a removable filter cartridge in an automotive lubrication system. The housing is formed of a thin-walled sheet metal drawn cylinder, with end removed, to form an elongated cylinder with both ends open. A base end has a formed metallic base secured therein by a rolled flange in the sheet metal housing. A closure end has a formed threaded ring secured to the end thereof by another rolled and swaged connection between the sheet metal and formed ring. In the preferred embodiment, the base carries permanent center tubes, and the filter cartridge is of unsupported construction, containing no metallic supports, and adapted to be disposed of in an environmentally acceptable manner.
Claims17
An oil filter housing comprising:
- a tubular thin-walled sheet metal shell defining an interior space of said housing and having an open base end and an open closure end;
- a shell base plate disposed inside the shell, the shell base plate including a cylindrical lip having a free end facing in a direction axially away from the interior space of said housing and defining an inlet port and at least one outlet port, the base end of said shell being rolled radially inwardly over the free end of the cylindrical lip of said shell base plate to form a mounting base rigidified by the shell base plate;
- a threaded metallic ring disposed outside the shell, the threaded metallic ring including a cylindrical lip having a free end facing in a direction axially away from the shell base plate, the closure end being rolled radially outwardly over the free end of the cylindrical lip of said threaded metallic ring to form the closure end of the shell rigidified by the threaded ring, the outwardly rolled edge forming a shell flange positioned with respect to the threaded ring for interfacing with a gasket;
- and
- a cover sized to close the closure end and having an internally threaded portion adapted to fit the threaded ring so as to secure the cover to the shell.
Dependencies are inferred from the claim text.