Plural range pressure regulator construction and cap assembly therefor
AssigneeRobertshaw Controls Company
InventorJohn J. Bolha
Life of this patent
Estimating the term…
Abstract
In a plural range pressure regulator construction having a spring for acting on a flexible wall of the construction to provide one pressure range for the regulator construction when the spring is in a certain position thereof and for being stored in a removable cap of the construction so that the spring will be in another position thereof and will not act on the wall so as to permit the regulator construction to provide another range thereof, the improvement wherein the spring has a spring retainer secured to one end thereof with the spring retainer being adapted to be snap-fitted onto a projection of the cap whereby the cap and spring are removed in unison from the housing when it is desired to change the operating position of the spring.
Claims16
In a plural range pressure regulator construction having a spring means for acting on a flexible wall of said construction to provide one pressure range for said regulator construction when said spring means is in a certain position whereof and for being stored in a removable cap of said construction so that said spring means will be in another position thereof and will not act on said wall so as to permit said regulator construction to provide another pressure range thereof, the improvement comprising securing means for securing said spring means to said cap when said spring means is in either of said positions thereof whereby said spring means is adapted to be removed from the housing of said construction in unison with said cap when said cap is removed therefrom and said spring means is in either of said positions thereof.
A removable cap assembly for a plural range pressure regulator construction having a spring means for acting on a flexible wall of said construction to provide one pressure range for said regulator construction when said spring means is in a certain position thereof and for being stored in a removable cap of said construction so that said spring means will be in another position thereof and will not act on said wall so as to permit said regulator construction to provide another pressure range thereof, said assembly comprising said cap, said spring means, and securing means for securing said spring means to said cap when said spring means is in either of said positions thereof whereby said spring means is adapted to be removed from the housing of said construction in unison with said cap when said cap is removed therefrom and said spring means is in either of said positions thereof.
Dependencies are inferred from the claim text.