US 6,981,693 B1 | ||
Control shaft for ceramic control valve of faucet | ||
Chia-Po Chang, Changhua Hsien (Taiwan) | ||
Assigned to Hain Yo Enterprises Co., Ltd., Lu-Kang (Taiwan) | ||
Filed on Apr. 21, 2004, as Appl. No. 10/829,108. | ||
Int. Cl. F16K 21/00 (2006.01) |
U.S. Cl. 251—368 | 7 Claims |
1. A control valve of a faucet, comprising:
a base having an inside formed with a water outlet;
a lower ceramic block mounted on the base and having an inside formed with a conducting channel, a cold water inlet and a
hot water inlet;
an upper ceramic block mounted on the lower ceramic block and having an inside formed with a conducting opening;
a coupling block mounted on the upper ceramic block;
a bottom bushing mounted on the coupling block;
an inner barrel mounted on the bottom bushing and having an inner wall formed with a through hole;
a housing mounted on the base and enclosed around the inner barrel; and
a control shaft mounted in the inner barrel and having an upper end protruding outward from the through hole of the inner
barrel, wherein:
the control shaft has a lower end formed with a drive member rested on the inner wall of the inner barrel; and
the drive member of the control shaft has a peripheral wall formed with a plurality of flattened faces.
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