Controller valve coupling
AssigneeInvensys Robertshaw Controls Company
InventorsThach Duong, Raymond-Paul Joubran, Joseph Raffaelli, Kenneth N. Minkler
Life of this patent
Estimating the term…
Abstract
A mechanism for attaching a gas controller to a water heater includes a shank that is longitudinally received in a spud attached to the water heater. O-rings serve to form a water tight seal between the interior surface of the spud and the exterior surface of the shank. Slots formed in the spud and a groove formed in the shank allow the two components to be axially locked to one another with the insertion of a retainer spring clip. The spring clip is readily removable to allow the two components to be separated without the destruction of any components.
Claims18
A gas controller device for controlling the flow of gas to a burner within a water heater so as to maintain a preselected temperature of water within said water heater, comprising:
- a shank having a first groove formed on its exterior surface;
- a spud, configured for attachment to said water heater and having a bore formed therein configured to receive said shank, said spud having a slot formed there through alignable with said groove on said shank;
- and
- a retainer element dimensioned to extend through said slot into said first groove so as to axially lock said shank to said spud.
Dependencies are inferred from the claim text.