Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/304
Name: Fluid handling > Hydrant type > Protection against freezing > Stop and waste > Separate relatively movable valves with single actuator
Description: Apparatus in which the control valve and the drain valve are relatively movable but are operated by a single actuator.










Sub-classes under this class:

Class Number Class Name Patents
137/305 Unidirectional abutting connection between main valve or actuator and waste valve 4
137/306 With screw or gear in actuating mechanism 0


Patents under this class:

Patent Number Title Of Patent Date Issued
8640728 Fire hydrant control valve Feb. 4, 2014
5901738 Portable fire hydrant May. 11, 1999
4307746 Frost-proof fire hydrant Dec. 29, 1981











 
 
  Recently Added Patents
Epitaxial substrate for electronic device, in which current flows in lateral direction and method of producing the same
Fixing apparatus
2,5-disubstituted piperidine orexin receptor antagonists
Uplink synchronization management in wireless networks
Large carrying case
Electronic device and printed circuit board
Medical capsule housing formed by thermal welding
  Randomly Featured Patents
Apparatus and method for a C-plate used in a cable guided fishing assembly
Error-correcting encoding apparatus
Transport and/or storage container, particularly of plastics
Plastic transmission filter
System and method for quantifying and mapping visual salience
Ornamental transfer specially adapted for adherence to nylon
Protein involved in ovarian cancer
Method and apparatus for wrapping multiple tapes upon an elongated structure
Two-head shower arm
Seed treatment composition and method