Flush valve handle assembly providing dual mode operation

Valves and valve actuation – Fluid actuated or retarded – Pilot or servo type motor

Reexamination Certificate

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C251S243000, C384S255000

Reexamination Certificate

active

08033522

ABSTRACT:
A dual mode flush valve includes a handle assembly having a handle, a bushing and a plunger. The bushing has a sleeve with a passage therethrough for mounting the plunger for sliding and tilting. The passage is defined by first and second partially overlapping bores that coincide at the inner end of the sleeve and are spaced one above the other at the outer end of the sleeve. The bores define a horizontal plunger travel axis and an angled plunger travel axis. Depending on which direction the user actuates the handle the plunger will travel along one of these axes. Travel along the angled axis will lower the plunger tip, allowing earlier clearance of a relief valve and a reduced flow through the flush valve compared to actuation with the plunger travel along the horizontal axis.

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Six-Liter Water Closets Equipped with a Dual Flushing Device, ASME A112, 19.14-2001 1 pg.
Confidential transcript of Rule 30(b)(6) deposition of Allen Becker, Dated Sep. 28, 2010,Sloan Valve Co.v.Zurn Industries, Inc. et al., United States District Court for the Northern District of Illinois, Eastern Division; Case No. 1:10-cv-00204.
Confidential exhibits to Rule 30(b)(6) deposition of Allen Becker, Dated Sep. 28, 2010,Sloan Valve Co.vZurn Industries, Inc. et al., United States District Cout for the Northern District of Illinois, Eastern Division, Case No. 1:10-cv-00204.
Confidential transcript of Rule 30(a)(1) deposition of James Bauer, Dated Nov. 18, 2010,Sloan Valve Co.v.Zurn Industries, Inc. et al., United States District Court for the Northern District of Illinois, Eastern Division, Case No. 1:10-cv-00204.
Confidential exhibits to Rule 30(a)(1) deposition of James Bauer, Dated Nov. 18, 2010,Sloan Valve Co.v.Zurn Industries, Inc. et al., United States District Court for the Northern District of Illinois, Eastern Division, Case No. 1:10-cv-00204.
Confidential transcript of Rule 30(a)(1) deposition of Joseph Ballachino, Dated Nov. 19, 2010,Sloan Valve Co.vZurn Industries, Inc. et al., United States District Court for the Northern District of Illinois, Eastern Division, Case No. 1:10-cv-00204.
Confidential exhibits to Rule 30(a)(1) deposition of Joseph Ballachino, Dated Nov. 19, 2010,Sloan Valve Co.v.Zurn Industries, Inc. et al., United States District Court for the Northern District of Illinois, Eastern Division, Case No. 1:10-cv-00204.
Confidential transcript of Rule 30(b)(6) deposition of Donald Kubiak, Dated Dec. 9, 2010,Sloan Valve Co.v.Zurn Industries, Inc. et al., Untied States District Court for the Northern District of Illinois, Eastern Division, Case No. 1:10-cv-00204.
Zurn engineering drawing 200090 cited in Defendants' Corrected Second Supplemental Initial Invalidity, UnenForceability and Non-Infringement Contentions, Dated May 14, 2010, Zurn Bates No. ZP000037, p. 38,Sloan Valve Co.v.Zurn Industries, Inc. et al., United States District Court for the Northern District of Illinois, Eastern Division, Case No. 1:10-cv-00204.
Photographs of Coyne & Delany foot-activated “Flushboy” flush valve cited in Defendants' Corrected Second Supplemental Initial Invalidity, UnenForceability and Non-Infringement Contentions, Dated May 14, 2010 Zurn Bates Nos. ZP000038-ZP000057, p. 196,Sloan Valve Co.v.Zurn Industries, Inc. et al., United States District Court for the Northern District of Illinois, Eastern Division, Case No. 1:10-cv-00204.
Photographs of new Zurn flush valve handle with brass bushing cited in Defendants' Corrected Second Supplemental Initial Invalidity, UnenForceability and Non-Infringement

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