Multiple position swivel lamp with integral switch contacts
View Patent ↗A multiple positioning assembly with integral switch contact includes a cylindrical housing along with a ball assembly including a ball portion received by the cylindrical assembly. The ball portion includes an electrically conductive surface and a neck extending therefrom. A plurality of spaced apart spring retainers are disposed within the cylindrical housing with electrically conductive coil spring contacts therein. Adjacent spring contacts complete an electrical circuit through the ball portion surface when in simultaneous contact therewith. Spring contacts further enable positioning of the ball portion within the cylindrical housing for conical movement of the neck with the ball portion being axially moveable between the spring contacts.
1. A multiple positioning assembly with integral switch contacts, the assembly comprising:
a cylindrical housing;
a ball assembly including a ball portion received by said cylindrical housing, said ball portion having an electrically conductive surface and including a neck extending therefrom with a bore through said neck and ball portion;
a plurality of spaced apart spring retainers disposed within said cylindrical housing, each spring retainer having a groove open toward said ball portion;
an electrically conductive spring contact disposed in each groove;
adjacent spring contacts completing an electrical circuit through the ball portion surface when in simultaneous contact therewith and enabling positioning said ball portion within said cylindrical housing for conical movement of said neck, said ball portion being axially moveable between spring contacts; and
one of the spring contacts most proximate to an end of said cylindrical housing preventing withdrawal of said ball portion from said cylindrical housing.
2. The assembly according to claim 1 wherein the spring retainer are molded into an inside wall of the housing.
3. The assembly according to claim 1 the spring retainer are suspended from an end of said cylindrical housing.
4. The assembly according to claim 1 wherein said ball portion is oblate.
5. The assembly according to claim 1 wherein said ball portion includes a flat.
6. The assembly according to claim 1 further comprises an air nozzle at an end of said neck and in communication with the bore through said neck and ball portion.
7. The assembly according to claim 1 further comprises a lamp socket disposed at an end of said neck and in electrical contact with said spring contact.
8. The assembly according to claim 1 further comprises a three way lamp socket disposed at an end of said neck and in electrical contact with said spring contacts.
9. The assembly according to claim 1 wherein at least one of the spring retainers has a compressed groove portion locally increasing spring force against the ball portion.
10. The assembly according to claim 1 wherein the coil spring is segmented.
11. A multiple positioning assembly with integral switch contacts, the assembly comprising:
a cylindrical housing;
a ball assembly including a ball portion received by said cylindrical housing, said ball portion having an electrically conductive surface and including a neck extending therefrom with a bore through said neck and ball portion;
three spaced apart spring retainers disposed within said cylindrical housing, each spring retainer having a groove open toward said ball portion;
an electrically conductive spring contact disposed in each groove;
adjacent spring contacts completing an electrical circuit through the ball portion surface when in simultaneous contact therewith and enabling positioning said ball portion within said cylindrical housing for conical movement of said neck, said ball portion being axially moveable between spring contacts;
one of the spring contacts most proximate to an end of said cylindrical housing preventing withdrawal of said ball portion from said cylindrical housing; and
a three way lamp socket disposed at an end of said neck and in electrical contact with said spring contacts.
12. The assembly according to claim 11 wherein the spring retainer are molded into an inside wall of the housing.
13. The assembly according to claim 11 the spring retainer are suspended from an end of said cylindrical housing.
14. The assembly according to claim 11 wherein said ball portion is oblate.
15. The assembly according to claim 11 wherein said ball portion includes a flat.
16. The assembly according to claim 11 wherein at least one of the spring retainers has a compressed groove portion locally increasing spring force against the ball.
17. The assembly according to claim 11 wherein the coil spring portion is segmented.
18. A multiple positioning assembly with integral switch contacts, the assembly comprising:
a cylindrical housing;
a ball assembly including a ball portion received by said cylindrical housing, said ball portion having an electrically conductive surface and including a neck extending therefrom with a bore through said neck and ball portion;
a plurality of spaced apart spring retainers disposed within said cylindrical housing, each spring retainer having a groove open toward said ball portion;
an electrically conductive spring contact disposed in each groove;
adjacent spring contacts completing an electrical circuit through the ball portion surface when in simultaneous contact therewith and enabling positioning said ball portion within said cylindrical housing for conical movement of said neck, said ball portion being axially moveable between spring contacts;
one of the spring contacts most proximate to an end of said cylindrical housing preventing withdrawal of said ball portion from said cylindrical housing; and
an air nozzle at an end of said neck communicating with the bore through said neck and ball portion.
19. The assembly according to claim 18 wherein the spring retainer are molded into an inside wall of the housing.
20. The assembly according to claim 18 the spring retainer are suspended from an end of said cylindrical housing.
21. The assembly according to claim 18 wherein said ball portion is oblate.
22. The assembly according to claim 18 wherein said ball portion includes a flat.
23. The assembly according to claim 18 wherein at least one of the spring retainers has a compressed groove portion locally increasing spring force against the ball portion.
24. The assembly according to claim 18 wherein the coil spring is segmented.