Tilt switch and holder
US4135067A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 28, 1976 |
| Grant date | Jan 16, 1979 |
| Priority date | — |
| Expiry date | Oct 28, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2300/016
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An omnidirectional tilt switch includes an enclosure for a gravity response conductive ball. An annular shelf surrounds a central depression where at least one switch contact passing into the housing is exposed. The shelf is operable to support the ball in a position resting against a cup-shaped portion of the switch housing, with the ball centroid located within a imaginary right cylinder having the inner shelf periphery as a base. In response to tilting of the switch, the ball is movable away from the cup-shaped housing to the depression where it engages the aforementioned contact and closes a circuit between that and another contact. A switch holder mounts the switch on a substrate located, for example, in an electro-optical display-type watch. The holder includes a base with a positioning edge or surface and tabs for securing the base to the substrate. Remote from the positioning edge or surface, the switch is supported at an angle relative to the positioning edge or surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.