Claims
- 1. A pressure responsive electrical switch assembly, comprising housing means, pressure responsive movable wall means carried by said housing means, said movable wall means effectively defining first and second chamber means within said housing means, at least first and second stationary contact means operatively carried by said housing means, at least first and second movable contact means operatively carried by said movable wall means, solid state electrical circuit means operatively carried by said movable wall means and electrically connected to said first and second movable contact means, resilient means normally operatively biasing said movable wall means in a direction toward said first chamber means and operatively biasing said first and second movable contact means in a direction away from said first and second stationary contact means, first electrical terminal means forming an electrical extension of said first stationary contact means, and second electrical terminal means forming an electrical extension of said second stationary contact means.
- 2. A pressure responsive electrical switch assembly according to claim 1 and further comprising passage means carried by said housing means adapted for connection to associated connector means leading to related structure containing fluid under pressure the magnitude of which is to be monitored by said switch assembly, conduit means formed in said housing means for completing communication as between said passage means and said first chamber means, and relatively yieldingly movable abutment means carried by said housing means effective for abuttingly operatively engaging related valving means carried by said associated connector means to thereby complete communication of said fluid under pressure to said passage means, said abutment means being yieldingly movable to accommodate variations in the effective length of said related valving means.
- 3. A pressure responsive electrical switch assembly according to claim 2 wherein said relatively yieldingly movable abutment means comprises pin means axially displaceable within said housing means.
- 4. A pressure responsive electrical switch assembly according to claim 2 wherein said movable abutment means comprises roll pin means frictionally retained at least partly within said conduit means.
- 5. A pressure responsive electrical switch assembly according to claim 1 wherein said first and second stationary contact means and said first and second movable contact means are so physically positioned with respect to each other that sequential closing of said first stationary and movable contact means and said second stationary and movable contact means occurs when said movable wall means is moved a sufficient distance generally toward said second chamber means by the force of sensed pressure within said first chamber means.
- 6. A pressure responsive electrical switch assembly, comprising housing means, pressure responsive movable wall means carried by said housing means, said movable wall means effectively defining first and second chamber means within said housing means, at least first and second stationary contact means operatively carried by said housing means, at least first and second movable contact means operatively carried by said movable wall means, solid state electrical circuit means operatively carried by said movable wall means and electrically connected to said first and second movable contact means, resilient means normally operatively biasing said movable wall means in a direction toward said first chamber means and operatively biasing said first and second movable contact means in a direction away from said first and second stationary contact means, first electrical terminal means forming an electrical extension of said first stationary contact means, and second electrical terminal means forming an electrical extension of said second stationary contacting means, said first and second stationary contact means and said first and second movable contact means being so physically positioned with respect to each other that sequential closing of said first stationary and movable contact means occurs when said movable wall means is moved a sufficient distance generally toward said second chamber means by the force of sensed pressure within said first chamber means, said first and second movable contact means being generally coplanar, and said first and second stationary contact means being located as to be effectively at different operational elevations with respect to each other and with respect to said first and second movable contact means.
- 7. A pressure responsive electrical switch assembly, comprising housing means, pressure responsive movable wall means carried by said housing means, said movable wall means effectively defining first and second chamber means within said housing means, at least first and second stationary contact means operatively carried by said housing means, at least first and second movable contact means operatively carried by said movable wall means, solid state electrical circuit means operatively carried by said movable wall means and electrically connected to said first and second movable contact means, resilient means normally operatively biasing said movable wall means in a direction toward said first chamber means and operatively biasing said first and second movable contact means in a direction away from said first and second stationary contact means, first electrical terminal means forming an electrical extension of said first stationary contact means, second electrical terminal means forming an electrical extension of said second stationary contact means, said housing means comprising first and second housing sections, said pressure responsive wall means comprising pressure responsive movable diaphragm means generally peripherally contained and retained between cooperating portions of said first and second housing sections, and switch body means operatively carried by said diaphragm means, said first and second movable contact means each being supported on said switch body means, said solid state electrical circuit means being supported on said switch body means, said solid state electrical circuit means comprising anode cathode and gate terminal means, said cathode terminal means being electrically connected to one of said first and second movable contact means, said gate terminal means being electrically connected to an other of said first and second movable contact means, said resilient means comprising electrically conductive spring means, and said spring means electrically interconnecting said anode terminal means to one of said first and second electrical terminal means.
- 8. A pressure responsive electrical switch assembly according to claim 7 wherein said first movable contact means comprises a first leaf contact arm having a first end thereof situated in a cantilevered manner from a first support leg associated therewith, wherein said second movable contact means comprises a second leaf contact arm having a second end situated in a cantilevered manner from a second support leg associated therewith, each of said first and second leaf contact arms being of an arcuate configuration as to have said first and second support legs and said first and second ends respectively spaced relatively close to each other while the portions of each of said contact arms generally between said first and second ends and said first and second support legs being generally bowed away from each other to define a relatively enlarged clearance space therebetween, wherein said spring means comprises a coiled compression spring, and wherein said coiled compression spring extends through said clearance space.
- 9. A pressure responsive electrical switch assembly according to claim 7 and further comprising guide means effective for preventing undesirable angular rotation as between said switch body means and said housing means.
- 10. A pressure responsive electrical switch assembly according to claim 9 wherein said guide means comprises cooperating rib and slot means.
- 11. A pressure responsive electrical switch assembly according to claim 10, wherein said rib means is formed internally of said housing means, and wherein said slot means is formed generally peripherally of said switch body means.
- 12. A pressure responsive electrical switch assembly, comprising housing means, pressure responsive movable wall means carried by said housing means, said movable wall means effectively defining first and second chamber means within said housing means, at least first and second stationary contact means operatively carried by said housing means, at least first and second movable contact means operatively carried by said movable wall means, solid state electrical circuit means operatively carried by said movable wall means and electrically connected to said first and second movable contact means, resilient means normally operatively biasing said movable wall means in a direction toward said first chamber means and operatively biasing said first and second movable contact means in a direction away from said first and second stationary contact means, first electrical terminal means forming an electrical extension of said first stationary contact means, and second electrical terminal means forming an electrical extension of said second stationary contact means, said solid state electrical circuit means comprising anode cathode and gate terminal means, said cathode terminal means being electrically connected to one of said first and second movable contact means, said gate terminal means being electrically connected to an other of said first and second movable contact means, said resilient means comprising electrically conductive spring means, and said spring means electrically interconnecting said anode terminal means to one of said first and second electrical terminal means.
- 13. A pressure responsive electrical switch assembly, comprising housing means, fluid pressure responsive movable wall means carried by said housing means, said movable wall means effectively defining first and second chamber means within said housing means, at least first and second stationary contact means operatively carried by said housing means, at least first and second movable contact means operatively carried by said movable wall means, solid state electrical circuit means operatively carried by said movable wall means and electrically connected to said first and second movable contact means, and resilient means normally operatively biasing said movable wall means in a direction toward said first chamber means and operatively biasing said first and second movable contact means in a direction away from said first and second stationary contact means.
- 14. A pressure responsive electrical switch assembly according to claim 13 and further comprising passage means carried by said housing means adapted for connection to associated connector means leading to related structure containing fluid under pressure the magnitude of which is to be monitored by said switch assembly, conduit means formed in said housing means for completing communication as between said passage means and said first chamber means, and relatively yieldingly movable abutment means carried by said housing means effective for abuttingly operatively engaging related valving means carried by said associated connector means to thereby complete communication of said fluid under pressure to said passage means, said abutment means being yieldingly movable to accommodate variations in effective length of said related valving means.
- 15. A pressure responsive electrical switch assembly according to claim 14 wherein said relatively yieldingly movable abutment means comprises pin means axially displaceable within said housing means.
- 16. A pressure responsive electrical switch assembly according to claim 14 wherein said movable abutment means comprises roll pin means frictionally retained at least partly within said conduit means.
- 17. A pressure responsive electrical switch assembly according to claim 13 wherein said first and second stationary contact means and said first and second movable contact means are so physically positioned with respect to each other that sequential closing of said first stationary and movable contact means and said second stationary and movable contact means occurs when said movable wall means is moved a sufficient distance generally toward said second chamber means by the force of sensed fluid pressure within said first chamber means.
- 18. A pressure responsive electrical switch assembly, comprising housing means, fluid pressure responsive movable wall means carried by said housing means, said movable wall means effectively defining first and second chamber means within said housing means, at least first and second stationary contact means operatively carried by said housing means, at least first and second movable contact means operatively carried by said movable wall means, solid state electrical circuit means operatively carried by said movable wall means and electrically connected to said first and second movable contact means, and resilient means normally operatively biasing said movable wall means in a direction toward said first chamber means and operatively biasing said first and second movable contact means in a direction away from said first and second stationary contact means, said first and second stationary contact means and said first and second movable contact means being so physically positioned with respect to each other that sequential closing of said first stationary and movable contact means and said second stationary and movable contact means occurs when said movable wall means is moved a sufficient distance generally toward said second chamber means by the force of sensed fluid pressure within said first chamber means, said first and second movable contact means being generally coplanar, and said first and second stationary contact means being located as to be effectively at different operational elevations with respect to each other and with respect to said first and second movable contact means.
- 19. A pressure responsive electrical switch assembly, comprising housing means, fluid pressure responsive movable wall means carried by said housing means, said movable wall means effectively defining first and second chamber means within said housing means, at least first and second stationary contact means operatively carried by said housing means, at least first and second movable contact means operatively carried by said movable wall means, solid state electrical circuit means operatively carried by said movable wall means and electrically connected to said first and second movable contact means, resilient means normally operatively biasing said movable wall means in a direction toward said first chamber means and operatively biasing said first and second movable contact means in a direction away from said first and second stationary contact means, said housing means comprising first and second housing sections, said pressure responsive wall means comprising pressure responsive movable diaphragm means generally peripherally contained and retained between cooperating portions of said first and second housing sections, and further comprising switch body means operatively carried by said diaphragm means, said first and second movable contact means each being supported by said switch body means, said solid state electrical circuit means being supported by said switch body means, said solid state electrical circuit means comprising anode cathode and gate terminal means, said cathode terminal means being electrically connected to one of said first and second movable contact means, said gate terminal means being electrically connected to an other of said first and second movable contact means, said resilient means comprising electrically conductive spring means, and said spring means electrically interconnecting said anode terminal means to one of said first and second stationary contact means.
- 20. A pressure responsive electrical switch assembly according to claim 19 wherein said first movable contact means comprises a first leaf contact arm having a first end thereof situated in a cantilevered manner from a first support leg associated therewith, wherein said second movable contact means comprises a second leaf contact arm having a second end situated in a cantilevered manner from a second support leg associated therewith, each of said first and second leaf contact arms being of an arcuate configuration as to have said first and second support legs and said first and second ends respectively spaced relatively close to each other while the portions of each of said contact arms generally between said first and second ends and said first and second support legs being generally bowed away from each other to define a relatively enlarged clearance space therebetween, wherein said spring means comprises a coiled compression spring, and wherein said coiled compression spring extends through said clearance space.
- 21. A pressure responsive electrical switch assembly according to claim 19 and further comprising guide means effective for preventing undesirable angular rotation as between said switch body means and said housing means.
- 22. A pressure responsive electrical switch assembly according to claim 21 wherein said guide means comprises cooperating rib and slot means.
- 23. A pressure responsive electrical switch assembly according to claim 22 wherein said rib means is formed internally of said housing means, and wherein said slot means is formed generally peripherally of said switch body means.
- 24. A pressure responsive electrical switch assembly, comprising housing means, fluid pressure responsive movable wall means carried by said housing means, said movable wall means effectively defining first and second chamber means within said housing means, at least first and second stationary contact means operatively carried by said housing means, at least first and second movable contact means operatively carried by said movable wall means, solid state electrical circuit means operatively carried by said movable wall means and electrically connected to said first and second movable contact means, and resilient means normally operatively biasing said movable wall means in a direction toward said first chamber means and operatively biasing said first and second movable contact means in a direction away from said first and second stationary contact means, said solid state electrical circuit means comprising anode cathode and gate terminal means, said cathode terminal means being electrically connected to one of said first and second movable contact means, said gate terminal means being electrically connected to an other of said first and second movable contact means, said resilient means comprising electrically conductive spring means, and said spring means electrically interconnecting said anode terminal means to one of said first and second stationary contact means.
- 25. A pressure responsive electrical switch assembly, comprising housing means, pressure responsive movable wall means carried by said housing means, said movable wall means effectively defining first and second chamber means within said housing means, at least first and second stationary contact means operatively carried by said housing means, at least first and second movable contact means operatively carried by said movable wall means, solid state electrical circuit means operatively carried by said movable wall means and electrically connected to said first and second movable contact means, resilient means normally operatively biasing said movable wall means in a direction toward said first chamber means and operatively biasing said first and second movable contact means in a direction away from said first and second stationary contact means, first electrical terminal means forming an electrical extension of said first stationary contact means, and second electrical terminal means forming an electrical extension of said second stationary contact means, said first and second movable contact means being generally coplanar, and said first and second stationary contact means being located as to be effectively at different operational elevations with respect to each other and with respect to said first and second movable contact means.
- 26. A pressure responsive electrical switch assembly, comprising housing means, fluid pressure responsive movable wall means carried by said housing means, said movable wall means effectively defining first and second chamber means within said housing means, at least first and second stationary contact means operatively carried by said housing means, at least first and second movable contact means operatively carried by said movable wall means, solid state electrical circuit means operatively carried by said movable wall means and electrically connected to said first and second movable contact means, and resilient means normally operatively biasing said movable wall means in a direction toward said first chamber means and operatively biasing said first and second movable contact means in a direction away from said first and second stationary contact means, said first and second movable contact means being generally coplanar, and said first and second stationary contact means being located as to be effectively at different operational elevations with respect to each other and with respect to said first and second movable contact means.
Parent Case Info
This is a division, of application Ser. No. 818,607, filed July 25, 1977 now abandoned.
US Referenced Citations (5)
Divisions (1)
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Number |
Date |
Country |
Parent |
818607 |
Jul 1977 |
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