| US 7,516,909 B2 | ||
| Continuous slurry dispenser apparatus | ||
| Raymond A. Kaligian, II, Geneva, Ill. (US); James E. Messer, Westlake, Ohio (US); Dennis Lettkeman, Watonga, Okla. (US); Salvatore C. Immordino, Trevor, Wis. (US); and Timothy Ross, Kannapolis, N.C. (US) | ||
| Assigned to United States Gypsum Company, Chicago, Ill. (US) | ||
| Filed on Feb. 03, 2005, as Appl. No. 11/50,309. | ||
| Application 11/050309 is a continuation in part of application No. 09/918940, filed on Jul. 31, 2001, abandoned. | ||
| Application 09/918940 is a continuation in part of application No. 09/505455, filed on Feb. 11, 2000, granted, now 6,273,345. | ||
| Prior Publication US 2005/0127208 A1, Jun. 16, 2005 | ||
| Int. Cl. B05B 7/06 (2006.01) | ||
| U.S. Cl. 239—432 [239/422; 239/433; 239/428; 239/419.3] | 18 Claims |
| 1. An apparatus for mixing an additive into a flowing fluid to form a settable mixture, comprising:
a main fluid passageway having an inlet for receiving a supply of the flowing fluid and an outlet for dispensing the fluid;
a control valve defining a portion of said main fluid passageway and configured for selectively controlling the flow of fluid
in said passageway;
an additive injector disposed in said passageway between said inlet and said outlet, said injector having an emitter disposed
at an approximate midpoint of said passageway and oriented toward said outlet for adding the additive to the flowing fluid;
a purge input for receiving at least one fluid distinct from the flowing fluid and the additive and configured for purging
said passageway of the settable mixture;
a static mixer disposed in said passageway between said injector and said outlet for enhancing the uniform mixing of the additive
and the fluid;
connection points between said inlet, said valve and said static mixer being configured for the prevention of at least one
of the collection and premature setting of the mixture in said passageway.
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