| US 7,392,735 B2 | ||
| Manual liquid metering device and cartridge | ||
| Jack Brass, North York (Canada); Bjarki Hallgrimsson, Ottawa (Canada); and Gregory R. W. McEwan, Warkworth (Canada) | ||
| Assigned to Brasscorp Limited, North York, ON (Canada) | ||
| Appl. No. 10/543,898 PCT Filed Jan. 29, 2004, PCT No. PCT/CA2004/000114 § 371(c)(1), (2), (4) Date Jul. 29, 2005, PCT Pub. No. WO2004/067962, PCT Pub. Date Aug. 12, 2004. |
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| Claims priority of provisional application 60/443532, filed on Jan. 30, 2003. | ||
| Prior Publication US 2006/0131344 A1, Jun. 22, 2006 | ||
| Int. Cl. F04B 9/14 (2006.01); F04B 9/04 (2006.01); B67D 5/42 (2006.01) | ||
| U.S. Cl. 92—32 [222/390] | 27 Claims |
| 1. An injector for injecting a liquid into a pressurized system, the injector comprising:
a. a cartridge for containing the liquid, the cartridge having along its longitudinal axis an open end and an opposing partially
enclosed end with a connector for connection, directly or indirectly, to the pressurized system,
b. a generally tubular housing for receiving the open end of the cartridge, the housing having internal threads, and
c. a driver having external threads compatible with the internal threads of the housing, and the driver having a handle, wherein the housing includes internal threads and the housing is split into a plurality of releasably attached sections for
access to the driver and cartridge, and an operator can manually grip the housing while rotating the driver with respect to
the housing to force the liquid to be ejected from the cartridge through the partially enclosed end.
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