Swivel actuating pressure switch

Patent metadata

Field	Value
Publication number	US-9818563-B2
Application number	US-201515301289-A
Country	US
Kind code	B2
Filing date	Mar 31, 2015
Priority date	Mar 31, 2014
Publication date	Nov 14, 2017
Grant date	Nov 14, 2017

Abstract

Swivel actuating pressure switching devices and methods are described herein that include a shorting member that translates and rotates into contact with one or more terminals in response to the application of a specified pressure to a piston included in the switch. The rotation of the shorting member with respect to the one or more terminals can be controlled by a receptacle that can include flutes, which guide the rotational movement of the shorting member in response to fluid pressure that causes the translation of the piston.

First claim

The claimed invention is:

1. A swivel actuating pressure switch comprising:
a connector body including one or more terminals supported therein;
a spring seat coupled to a shorting member;
a receptacle for guiding the shorting member in a direction to translate and rotate the shorting member with respect to the receptacle;
a spring coupled to the spring seat and receptacle, wherein the spring provides a reaction force such that a specified pressure applied to the spring seat will translate and rotate the shorting member from a first location to a second location with respect to the one or more terminals, wherein at some location during translation and rotation, the shorting member electrically contacts the one or more terminals; and a piston and a housing, wherein the specified pressure is applied to the spring seat by way of the piston and at least one seal is positioned between the piston and the housing.

2. The swivel actuating pressure switch of claim 1 , wherein the switch components can be interchangeably arranged using the same components such that the switch operates in a normally open or normally closed condition.

3. The swivel actuating pressure switch of claim 1 , wherein the pressure required to translate and rotate the shorting member from the first location to the second location is configurable by rotating the connector body with respect to the receptacle.

4. The swivel actuating pressure switch of claim 1 , wherein the pressure required to translate and rotate the shorting member from the first location to the second location occurs as a result of a pressure differential between two or more pressure ports.

5. The swivel actuating pressure switch of claim 1 , further including a resilient overpressure element to absorb an amount of pressure on the shorting member in an overpressure condition.

6. The swivel actuating pressure switch of claim 1 , wherein the piston includes two seals between the piston and the housing that seal two different diameters on the piston.

7. The swivel actuating pressure switch of claim 1 , wherein the shorting member, spring seat, and piston are integrated into a single component.

8. A swivel actuating pressure switch for use in fluid systems comprising:
a connector body including at least one or more terminals supported therein and a connector interface;
a spring seat coupled to a shorting member support and a shorting member coupled to the shorting member support;
a receptacle for guiding the shorting member in a direction to translate and rotate the shorting member with respect to the receptacle:
a piston coupled to the spring seat, wherein the shorting member is positioned in a first location with respect to the one or more terminals and in response to the application of a specified pressure to the piston, the shorting member is translated and rotated to a second location with respect to the one or more terminals;
a spring coupled to the spring seat and the receptacle, wherein the spring provides a reaction force necessary to translate and rotate the shorting member from the first location to the second location in response to the specified pressure;
a housing including an outer surface extending between a first-housing-end and a second-housing-end and a passage extending axially therethrough, wherein the first-housing-end includes a means of fastening and sealing to a manifold; and
at least one u-seal positioned between the piston and the housing.

9. The swivel actuating pressure switch of claim 8 , wherein the pressure required to translate and rotate the shorting member from the first location to the second location is configurable by rotating the connector body with respect to the receptacle.

10. The swivel actuating pressure switch of claim 8 , wherein the pressure required to translate and rotate the shorting member from the first location to the second location occurs as a result of a pressure differential between two or more pressure ports.

11. The swivel actuating pressure switch of claim 8 , wherein the switch components can be interchangeably arranged using the same components such that the switch operates in a normally open or normally closed condition.

12. A method of using a swivel actuating pressure switch comprising:
supporting at least one or more terminals within a connector body;
positioning a receptacle in relation to the location of the one or more terminals, wherein the receptacle includes at least one flute;
guiding a shorting member in a direction to translate and rotate the shorting member with respect to the receptacle in response to an application of a specified pressure to a spring seat, wherein the shorting member is coupled to the spring seat;

positioning a spring between the spring seat and the receptacle to calibrate the pressure required to translate and rotate the shorting member from a first location with respect to the receptacle to a second location with respect to the receptacle; and
modifying a contact state of the shorting member and the one or more terminals in response to the translation and rotation of the shorting member from the first location to the second location with respect to the receptacle, wherein the pressure for modifying the contact state of the switch is configurable while the switch is in operation by rotating the connector body with respect to the receptacle.

13. The method of using a swivel actuating pressure switch of claim 12 , wherein the pressure originates from an internal combustion engine.

14. The method of using a swivel actuating pressure switch of claim 12 , wherein the pressure originates from a pneumatic system.

15. The method of using a swivel actuating pressure switch of claim 12 , wherein the pressure originates from a hydraulic system.

16. The method of using a swivel actuating pressure switch of claim 12 , wherein the pressure for modifying the contact state of the switch is a differential pressure between two or more pressure ports.

17. The method of using a swivel actuating pressure switch of claim 12 , wherein the switch components can be interchangeably arranged such that the switch operates in a normally open or normally closed condition.

Assignees

• Donaldson Co Inc

Inventors

• Nagel Douglas Jon

Classifications

• H01H35/2614

  by varying the bias on the pressure sensitive element · CPC title

• H01H35/24

  Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow (wherein the change of pressure is caused by change of temperature H01H37/36) · CPC title

• H01H13/06

  Dustproof, splashproof, drip-proof, waterproof or flameproof casings · CPC title

• H01H35/38 Primary

  actuated by piston and cylinder · CPC title

• H01H2223/002

  sealed · CPC title