Electric hoist pendant control switch arrangement
US4635903A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1985 |
| Grant date | Jan 13, 1987 |
| Priority date | — |
| Expiry date | Jul 29, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/3902
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
There is disclosed a pendant control arrangement for overhead electric hoists featuring a helically wound elastically memorized insulative cord enclosing a plurality of electrical conductors for attachments at their opposite ends to terminals in the hoist motor and in the pendant control switches. This coiled cord encloses a straight line strain relief cable or the like which is of a length equal to the anticipated length required to support the pendant switch control panel at proper elevation below the electric hoist, and simply mechanically connects at its opposite ends to said motor and said control panel. Thus, changes in the distance required between the hoist motor and the control panel are more readily accommodated by reason of the mechanical connections of the relief cable, while leaving the electrical connections of the control cord conductors undisturbed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.