US 7,455,372 B2
	Safety angle cock
Yidong Wang, No. 4-1, No. 2 Building, Chaoyang Zone, Zhang Nan Road, Nan Ding Town, Zhang Dian District, Zi Bo, Shan Dong (China); and Shicheng Wang, Shan Dong (China)
Assigned to Yidong Wang, Zibo (China)
Filed on Nov. 04, 2005, as Appl. No. 11/267,862.
Claims priority of application No. 2005 1 0072445 (CN), filed on May 12, 2005.
Prior Publication US 2006/0255655 A1, Nov. 16, 2006
Int. Cl. B60T 15/04 (2006.01); F16K 5/08 (2006.01)

U.S. Cl. 303—56  [251/314; 251/315.16]

13 Claims

1. A safety angle cock air-bleeding in a multi-mode and having a ball core revolved in a single direction includes a cock body with a casing, a shaft, a main pipe joint and a hose joint with a locking nose, wherein there is on a upper part of the casing of the cock body a limit stop with a handle mount, a pallet and a ratchet wheel are disposed in the handle mount for controlling rotation of the shaft in a single direction, a small sealing ring is arranged at a hose connection port of the cock body and a large sealing ring at a main pipe connection port of the cock body, and the ball core positioned in the cock body is connected to the lower end of the shaft and provided with a air bleeding slot on each side thereof, the length of the slot being bigger than the diameter of the small sealing ring and smaller than the diameter of the big sealing ring, characterized in that an air bleeding valve for adjusting and controlling air-bleed is mounted at a bottom of the casing of the cock body, the air bleeding valve including a revolving vane for adjusting and controlling air bleed with a driving plectrum fitted in a driving groove that is disposed at a bottom of the ball core.