Trigger operated electric switch
US4553005A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 8, 1984 |
| Grant date | Nov 12, 1985 |
| Priority date | — |
| Expiry date | Mar 8, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/52
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Variations of individual components are selectively assembled to satisfy specified switch characteristics and functions. A self-contained switching unit (2) comprises an actuator (8) mounted for linear reciprocal movement in a first housing (4) and having an end projecting through an end wall of the first housing, a return spring (52) biasing the actuator (8) to an extending position, and contactors (46, 48; 76, 78) positioned in pockets (8a, 8b) in the actuator (8) above and below the return spring (52) to be cammed in opposite lateral directions upon depression of the actuator (8) to bridge large-mass stationary contacts (28, 30; 32, 34, 36) positioned firmly against sidewalls of the first housing (4). Camming arrangements carry the contactors (46, 48; 76, 78) into bridging engagement with the stationary contacts (28, 30; 32, 34, 36) and render contact pressure springs (86, 90) operative after such engagement. Selected versions of the actuator (8) and a trigger (12) to be attached to the projecting end of the actuator accommodate a variable depression adjustment screw (10, 14). The stationary contacts include integral terminal portions (28a, 30a; 32a, 34a, 36a) extending through …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.