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US 4,193,166 AGranted
Knob for a pan cover
AssigneeNorthwest Molded Products Corporation
InventorPaul C. Neff
Life of this patent
Estimating the term…
Abstract
A knob for the cover of a pan or similar container which is used for waterless cooking. The knob is installed in an opening formed in the pan cover. A vent passage extends from the pan cover opening to an outlet in the lower peripheral portion of the knob. A disc is provided for closing the vent passage and a slidable tubular housing is provided with lifting surfaces to lift the disc and open the vent passage. The knob can be partially disassembled for cleaning by rotation of the outer tubular housing.
Claims5
A knob for the cover of a pan used for waterless cooking, including:
- means for mounting said knob in an opening formed in the pan cover,
- a vent passage outlet,
- a vent passage extending through said mounting means and connecting said pan cover opening with said vent passage outlet,
- means to selectively open and close said vent passage outlet which means includes:
- a disc for closing said vent passage outlet, and
- means to lift said disc from said vent passage outlet to open said outlet.
3 more elements
Dependencies are inferred from the claim text.