Fluid driven diaphragm pump
AssigneeWalbro Corporation
InventorsNobuyuki Kuroki, Katsuaki Hamataka, Mark S. Swanson, Tetsuya Takahashi, Teruhiko Tobinai
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Abstract
In at least some implementations, a method of forming a diaphragm for a liquid pump, includes clamping a substantially planar piece of material about a periphery, and plastically deforming the piece of material inboard of the clamped periphery. In at least some implementations, the material is plastically deformed by pressing a forming member against the material, or the material is plastically deformed by applying a fluid under pressure against the material.
Claims18
A method of forming a diaphragm for a liquid pump, comprising:
- clamping a substantially planar piece of material about a periphery;
- and
- plastically deforming the piece of material inboard of the clamped periphery.
A method of forming a diaphragm for a liquid pump, comprising:
- clamping a portion of a circular and planar piece of material, wherein at least an unclamped portion of the material is continuous, without any perforations;
- and
- stretching at least a portion of the material that is not clamped until the stretched material plastically deforms, wherein, after stretching, the material remains continuous, without any perforations.
Dependencies are inferred from the claim text.