Pressure switch

Claim 1

IN A FLUID PRESSURE SWITCH OF THE TYPE HAVING A HOUSING, A PORT AT ONE END OF SAID HOUSING ADAPTED TO BE CONNECTED TO A REFERENCE PRESSURE, PRESSURE RESPONSIVE MEANS MOVABLE BY SAID PRESSURE, THE MOVEMENT OF SAID PRESSURE RESPONSIVE MEANS BEING TRANSMITTED IN ONE DIRECTION LONGITUDINALLY OF SAID HOUSING TO A SWITCH ACTUATOR, RESILIENT MEANS URGING SAID ACTUATOR IN AN OPPOSITE DIRECTION, A SWITCH ADAPTED TO BE ACTUATED BY SAID SWITCH ACTUATOR, AND ADJUSTING MEANS ACTING UPON SAID RESILIENT MEANS FOR ADJUSTING THE RESILIENCY THEREOF, THE IMPROVEMENT COMPRISING A HOUSING FOR SAID FLUID PRESSURE SWITCH INCLUDING A GENERALLY LONGITUDINALLY DISPOSED BODY MEMBER OF RIGID SINGLE-PIECE CONSTRUCTION, SAID LONGITUDINALLY DISPOSED BODY MEMBER BEING PROVIDED WITH AN ACCESS OPENING, SAID HOUSING ALSO INCLUDING TWO END MEMBERS ATTACHED TO SAID LONGITUDINAL BODY MEMBER IN SEALED RELATION, A FIRST ONE OF SAID END MEMBERS DEFINING SAID REFERENCE PRESSURE PORT AND PROVIDING STRUCTURAL SUPPORT FOR SAID PRESSURE RESPONSIVE MEANS, A SECOND ONE OF SAID END MEMBERS PROVIDING SUPPORT FOR SAID SWITCH, GUIDE MEANS WITHIN SAID HOUSING SUPPORTING SAID ADJUSTING MEANS AND ACCOMMODATING LONGITUDINAL ADJUSTING MOVEMENT THEREOF, CONTROL MEANS BEING MOUNTED WITHIN SAID HOUSING AND IN SURROUNDING RELATION TO SAID ADJUSTING MEANS, SAID CONTROL MEANS COOPERATING WITH SAID ADJUSTING MEANS FOR CAUSING LONGITUDINAL MOVEMENT THEREOF, SAID ADJUSTING MEANS COMPRISING A COLLAR AND SAID CONTROL MEANS BEING THREADABLY