Ball holding, latching and locking applications using radial and axial springs by incorporating electrical conductivity and electrical switchings
View Patent ↗A latching and electrical switch mechanism includes an insulated housing having a cavity therein with an opening thereto along with an electrically conductive ball disposed therein. The ball includes a stem with a smaller diameter than the ball and extends therefrom with a ball being sized for rotational and translational movement within the housing cavity. At least one groove is provided in the housing cavity and a coil spring is disposed in a groove for making electrical contact with the ball and retaining the ball for rotation within the cavity with the stem at selected conical angles with respect to the housing centerline. At least one electrical contact is disposed in the cavity at a spaced apart relationship with the coil spring for providing electrical connection with the ball upon translational movement of the ball within the cavity.
1. A latching and electrical switch mechanism comprising:
an insulated housing having a cavity therein with an opening thereto;
an electrically conductive ball having a stem of smaller diameter than the ball and extending therefrom, the ball being sized for rotational and translational movement within the housing cavity:
at least one groove in the housing cavity;
a coil spring, disposed in the groove, for making electrical contact with the ball and retaining the ball for rotation within cavity with said stem at selected conical angles with respect to a housing centerline; and
at least one electrical contact disposed in said cavity at a spaced apart relationship with said coil spring, for providing electrical connection with the ball upon translational movement of the ball within said cavity.
2. The mechanism according to claim 1 wherein said groove is circumferential and said coil spring is a continuous garter type spring.
3. The mechanism according to claim 1 wherein a plurality of arcuate grooves are disposed in the housing cavity and an arcuate coil spring segment is disposed in each of the arcuate grooves.
4. The mechanism according to claim 1 further comprising a plurality of spaced apart circumferential grooves in the housing cavity and a corresponding coil spring disposed in each of the plurality of the grooves and positioned for enabling sequential electrical connection with the ball in order to provide multiple parallel and serial electrical switching by translational movement of the ball within said cavity.
5. The mechanism according to claim 1 further comprising two spaced apart circumferential grooves in the housing cavity and a corresponding coil spring disposed in each of the grooves and positioned for enabling sequential electrical connection with the ball in order to provide multiple parallel and serial electrical switching by translational movement of the ball within said cavity.
6. The mechanism according to claim 1 further comprising three spaced apart circumferential grooves in the housing cavity and a corresponding coil spring disposed in each of the grooves and positioned for enabling sequential electrical connection with the ball in order to provide multiple parallel and serial electrical switching by translational movement of the ball within said cavity.
7. The mechanism according to any one of claims 5 - 6 further comprising a circumferential groove in the ball for removably engaging each of the springs.
8. A latching and electrical switch mechanism comprising;
an insulated housing having a cavity therein with an opening thereto;
an electrically conductive ball having a stem of smaller diameter than the ball and extending therefrom, the ball being sized for insertion into the housing cavity and disconnection from the housing cavity through said opening;
at least one groove in the housing cavity proximate the cavity opening;
a coil spring, disposed in the groove for making electrical contact with the ball and enabling ball rotation within said cavity with said stem at selected conical anges with respect to a housing centerline, said coil spring having a contact angle with the ball determined by a groove configuration in order to control ball insertion and ball disconnect forces; and
at least one electrical contact disposed in said cavity at a spaced apart relationship with said coil spring, for providing electrical connection with the ball upon translational movement of the ball with said cavity.
9. The mechanism according to claim 8 wherein said groove is circumferential and said coil spring is a continuous spring.
10. The mechanism according to claim 8 wherein a plurality of arcuate grooves are disposed in the housing cavity and an arcuate coil spring segment is disposed in each of the arcuate grooves.
11. The mechanism according to claim 8 further comprising a plurality of spaced apart circumferential grooves in the housing cavity and a corresponding coil spring disposed in each of the plurality of the grooves and positioned for enabling sequential electrical connection with the ball in order to provide multiple parallel and serial electrical switching by translational movement of the ball within said cavity.
12. The mechanism according to claim 8 further comprising two spaced apart circumferential grooves in the housing cavity and a corresponding coil spring disposed in each of the grooves and positioned for enabling sequential electrical connection with the ball in order to provide multiple parallel and serial electrical switching by translational movement of the ball within said cavity.
13. The mechanism according to claim 8 further comprising three spaced apart circumferential grooves in the housing cavity and a corresponding coil spring disposed in each of the grooves and positioned for enabling sequential electrical connection with the ball in order to provide multiple parallel and serial electrical switching by translational movement of the ball within said cavity.
14. The mechanism according to any one of claims 11 - 13 further comprising a circumferential groove in the ball for removably engaging each of the springs.