Condition responsive valve construction and method of making the same

A condition responsive valve constuction comprising a housing means having a valve seat, a pair of balls having their respective substantially spherical surfaces secured together in abutting relation and being movable toward and away from said valve seat so that one of said balls acts to open and close said valve seat, a lever movably mounted in said housing means and acting between said balls to cause movement thereof, and condition responsive means carried by said housing means and being operatively associated with said lever to cause movement thereof upon conditions sensed thereby, said lever having a part thereof disposed between said balls for acting thereon, said part of said lever having lost motion travel between said balls for creating a differential in the condition required to open and close said valve seat.

A condition responsive valve construction comprising a housing means having a valve seat, a pair of balls having their respective substantially spherical surfaces secured together in abutting relation and being movable toward and away from said valve seat so that one of said balls acts to open and close said valve seat, a lever movably mounted in said housing means and acting between said balls to cause movement thereof, and condition responsive means carried by said housing means and being operatively associated with said lever to cause movement thereof upon conditions sensed thereby, and means for tending to hold said balls in a valve seat closed position thereof and in a yalve seat open position thereof, said means for holding said balls comprising a spring member that acts on one of said balls, said spring member acting radially on one of said balls to tend to hold the same in either of said positions of said balls.

A condition responsive valve construction comprising a housing means having a valve seat, a pair of balls secured together and being movable toward and away from said valve seat so that one of said balls acts to open and close said valve seat, a lever movably mounted in said housing means and acting between said balls to cause movement thereof, condition responsive means carried by said housing means and being operatively associated with said lever to cause movement thereof upon conditions sensed thereby, and means separate from said lever for tending to hold said balls in said valve seat closed position thereof and in an open position thereof.

A condition responsive valve construction comprising a housing means having a valve seat, a pair of balls secured together and being movable toward and away from said valve seat so that one of said balls acts to open and close said valve seat, a lever movably mounted in said housing means and acting between said balls to cause movement thereof, condition responsive means carried by said housing means and being operatively associated with said lever to cause movement thereof upon conditions sensed thereby, means separate from said lever for tending to hold said balls in said valve seat closed position thereof and in an open position thereof, and spring means acting on said balls to tend to move said balls in a valve seat closing direction thereof, said spring means being separate from said means for tending to hold said balls in said valve seat closed and open position thereof, said spring means acting radially on one of said balls to tend to hold the same in either of said positions of said balls.

A method of making a condition responsive valve construction comprising the steps of providing a housing means with a valve seat, securing the respective substantially spherical surfaces of a pair of balls together in abutting relation and disposing the same in said housing means so as to be movable toward and away from said valve seat in such a manner that one of said balls acts to open and close said valve seat, mounting a movable lever in said housing means to act between said balls to cause movement thereof, and operatively associating a condition responsive means with said lever to cause movement thereof upon conditions sensed thereby.

A method of making a condition responsive valve construction comprising the steps of providing a housing means with a valve seat, securing the respective substantially spherical surfaces of a pair of balls together in abutting relation and disposing the same in said housing means so as to be movable toward and away from said valve seat in such a manner that one of said balls acts to open and close said valve seat, mounting a movable lever in said housing means to act between said balls to cause movement thereof, operatively associating a condition responsive means with said lever to cause movement thereof upon conditions sensed thereby, disposing a part of said lever between said balls for acting thereon and causing said part of said lever to have lost motion travel between said balls for creating a differential in the condition required to open and close said valve seat.

A method of making a condition responsive valve construction comprising the steps of providing a housing means with a valve seat, securing the respective substantially spherical surfaces of a pair of balls together in abutting relation and disposing the same in said housing means so as to be movable toward and away from said valve seat in such a manner that one of said balls acts to open and close said valve seat, mounting a movable lever in said housing means to act between said balls to cause movement thereof, operatively associating a condition responsive means with said lever to cause movement thereof upon conditions sensed thereby, providing means for tending to hold said balls in a valve seat closed position thereof and in a valve seat open position thereof, forming said means for holding said balls from a spring member that acts on one of said balls, and causing said spring member to act radially on one of said balls to tend to hold the same in either of said positions of said balls.

A method of making a condition responsive valve construction comprising the steps of providing a housing means with a valve seat, securing a pair of balls together and disposing the same in said housing means so as to be movable toward and away from said valve seat in such a manner so that one of said balls acts to open and close said valve seat, mounting a movable lever in said housing means to act between said balls to cause movement thereof, operatively associating a condition responsive means with said lever to cause movement thereof upon conditions sensed thereby, and forming means separate from said lever for tending to hold said balls in said valve seat closed position thereof and in a certain open position thereof.

A method of making a condition responsive valve construction comprising the steps of providing a housing means with a valve seat, securing a pair of balls together and disposing the same in said housing means so as to be movable toward and away from said valve seat in such a manner so that one of said balls acts to open and close said valve seat, mounting a movable lever in said housing means to act between said balls to cause movement thereof, operatively associating a condition responsive means with said lever to cause movement thereof upon conditions sensed thereby, and forming means separate from said lever for tending to hold said balls in said valve seat closed position thereof and in a certain open position thereof, forming said means for holding said balls from a spring member that acts on one of said balls, and causing said spring member to act radially on one of said balls to tend to hold the same in either of said positions of said balls.