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AssigneeWanner Engineering, Inc.
InventorsPeter Meinz, Dustin Featherstone, Matthew Hollister, Aaron Jarkko Kariniemi
Estimating the term…
A diaphragm pump includes a transfer chamber containing hydraulic fluid and a pumping chamber for fluid to be pumped. A connecting assembly includes a plunger extending to the transfer chamber. A diaphragm connects to the connecting assembly and separates the transfer chamber and the pumping chamber. A pressure protection device mounts to the connecting assembly and is configured to seal against the transfer chamber when pressure differential, including reverse pressure differential, across the diaphragm exceeds a predetermined value. The pressure protection device is intermediate the plunger and the diaphragm and supports the diaphragm when there is excess pressure differential across the diaphragm.
A diaphragm pump apparatus comprising:
A pressure protection apparatus for a diaphragm in a diaphragm pump, the pump having a control element mounted to the diaphragm, a transfer chamber and a pumping chamber, the pressure protection apparatus comprising:
Dependencies are inferred from the claim text.