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US 4,338,802 AGranted
Agitator mounted filter for an automatic washer
AssigneeWhirlpool Corporation
InventorsWilliam Ohmann, Edward E. Wiessner
Life of this patent
Estimating the term…
Abstract
A filter for use in a vertical axis automatic clothes washing machine mounted on the exterior of a two section separable agitator and which projects into a fluid flow path. The exterior section is easily removable, cleanable and replaceable. The filter is formed as a double cone with inlet openings on one side and a foraminous filter surface on the other side.
Claims10
In a vertical axis washing machine having a wash receptacle, a drive means and an agitation means within said receptacle driven by said drive means;
- said agitation means comprising:
- an inner oscillatory agitator section having a vertical central hub having an upper portion and including a bottom portion forming a skirt and a plurality of vanes, said vanes mounted adjacent said skirt formed at the bottom of said hub, and
- an outer oscillatory agitator section comprising a barrel fitting over said upper portion of said inner agitator hub, said outer agitator section forming a lower portion and having a conical flange having openings therethrough formed near said lower portion, and an inverted conical section comprising a filter means affixed to said flange, said filter means forming a lower end of said outer agitator section, whereby said vanes impel liquid in said wash receptacle to flow down along the barrel of the outer agitator section, in through said flange openings and out through said filter means to separate filterable substances from said liquid.
A washing machine agitator comprising:
- a centrally disposed post having a pair of spaced embossments forming a cylindrical surface with spaced shoulders;
- an externally disposed barrel having a telescoping relation with said post and including a first cylindrical abutment surface engaging one of said embossments;
- said barrel including an outwardly extending axially projecting wall terminating in a recessed lip and having a plurality of relatively large inlet openings formed therein;
- and
- a filter basket including a rim received and seated in said recessed lip, said basket tapering inwardly and projecting axially for termination at a collar embracing the other of said embossments;
- said filter basket having a foraminous filter surface to separate lint and debris from laundry liquid passing therethrough;
- said post, barrel and basket together forming an annular filter zone through which laundry liquid may be directed during the washing cycle of a laundry process.
4 more elements
Dependencies are inferred from the claim text.