Patents

There are a number of patents granted and pending which describe the inventions in the EnviZion valve. The following patent application publication numbers may be viewed at USPTO.gov:

Patents Granted:
  • US Patent 8,708,308 – Sealing Arrangement for a Diaphragm Valve
  • US Patent 9,016,307 – Quick Connect, Post Energized Flanged Joint for Diaphragm Valves
  • US Patent 9,234,718 – Spherical-Shaped Valve Body and Diaphragm Contact Surface
  • US Patent 9,366,346 – Hourglass diaphragm studs
  • US-Patent 9,322,482 - Temperature Compensating Flanged Joint for a Diaphragm Valve 
  • US-Patent 9,046,180 - Diaphragm and Backing Cushion Shaping for Increased Membrane Life
  • U.S. Patent 9,709,189 - Position Locking Feature of Multi-Turn Rotational Device
  • European patent EP2416038B1 – Sealing arrangement for a diaphragm valve. Applicable in Germany, UK, Ireland, France, Switzerland and additional EU countries)
  • European patent EP2875266B1 – Quick connect, post energized flanged joint for a diaphragm valve. Applicable in Germany, UK, Ireland, France, Switzerland and additional EU countries)
  • European patent EP2875267B1 – Temperature Compensating flanged joint for a diaphragm valve. Applicable in Germany, UK, Ireland, France, Switzerland and additional EU countries)
  • European patent EP2913568B1 – Valve having at least one hourglass stud for coupling to diaphragm and compressor/spindle components. Applicable in Germany, UK, Ireland, France, Switzerland and additional EU countries)
  • European patent EP2913572B1 – Final position locking feature of multi-turn rotational device. Applicable in Germany, UK, Ireland, France, Switzerland and additional EU countries)