Abstract: This invention relates to a fire hydrant locating system which includes a hydrant locator that facilitates the location of a hydrant by firefighters, particularly in an emergency vehicle such as a fire engine. The hydrant locator as secured to the hydrant cylinder has a low profile. The hydrant locating system includes a transmitter adapted to be located in the emergency vehicle. Upon actuation of a switch in the transmitter in the emergency vehicle a receiver-signal generator in the hydrant locator will be activated to set off strobe lights to alert firefighters of the hydrant location. The receiver-signal generator in the hydrant locator includes a strobe light structure. The transmitter can be set such that when actuated it will activate only those hydrant locators within a preselected range such as approximately 1500 feet.

Abstract: A resilient seat gate valve is provided with a housing having an opening for receiving the operating stem for the valve and a cover with a seal for the cover to the housing opening comprising a step peripheral surface and an angled surface located interiorly of the valve housing opening; the cover is provided with a locking mechanism for drawing the opening peripheral surface against the angled surface of the housing lip to compress the seal carried by the peripheral surface of the cover and to effect the attachment of the cover in place without bolts or screws; the valve disc is provided with side edges covered by an elastomer and protected with a fully enclosing, replaceable cap to prolong the life of the valve disc by protecting the elastomer coating from abrasion; a dumbbell dirt and fluid pressure seal O-ring arrangement is provided between the cover and lip of the housing to facilitate insertion and positioning of the seal during installation of the cover.

Abstract: A method and apparatus for installing a plastic fitting and a line stopping mechanism to a main includes a stopper shaft which is used to remove a completion plug in the fitting during installation, and to control the line stopper mechanism once it is installed within the fitting; a connection between the stopper shaft and an external drive shaft is provided which includes both left and righthanded threads in order to prevent the connection from loosening while it is being torqued in different directions. A method of installing the fitting which includes electric resistance fusing is also disclosed.