Limit switch
US7129429B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2001 |
| Grant date | Oct 31, 2006 |
| Priority date | — |
| Expiry date | Apr 11, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H1/585
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical limit switch (10) is provided and comprises a number of contact elements (30) each having a slot (32) with inner cutting edges (34) for penetrating the insulation of and containing a conducting element (48). The contact elements (30) are provided on a body which engages a base (56) wherein the base (56) receives a plurality of conducting elements (48). Upon engagement of the body and base (56), the conducting elements (48) are foced into respective slots (32) in the contact elements (30), thus providing a rapid electrical connection. The switching means of the limit switch (1) is provided by an actuating arrangement (14) including a plunger portion (16) and a roller (18), wherein the plunger(16) includes electrical contacts (36a, 36b) which are moveable with the plunger. Each contact (36a, 36b) provides an electrical connection between two of the contact elements (30) when the plunger (16) is in the appropriate position. The limit switch (10) includes a cover (12) with respective upper and lower cover portions (12a, 12b) which are held together by click-lock tabs (20) and grooves (22). Mounted on the upper cover portion (12a) is the actuating arrangement (14) and the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.