Corkscrew device
US4637283A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 1985 |
| Grant date | Jan 20, 1987 |
| Priority date | — |
| Expiry date | May 24, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67B7/0405
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A corkscrew comprises a sleeve coaxial with a corkscrew spiral and formed to cooperate with a bottleneck provided with a cork. An electric motor drives the corkscrew spiral by means of a reduction gear, the corkscrew spiral being capable of being screwed into the cork in one direction of rotation with the cork being drawn from the bottleneck without the direction of rotation being reversed, the reduction gear providing a reduction ratio of 60:1 to 100:1, the electric motor being a self-starting two-pole single-phase synchronous motor with a diametrically magnetized permanent-magnet rotor. A reversible unidirectional latch is situated at the driven side of the corkscrew spiral for defining the direction of rotation of the motor, such unidirectional latch cooperating with a part of the reduction gear driven by the motor with an integral reduction ratio. Provision is made to reverse the blocking direction of the unidirectional latch to select one of the two directions of rotation of the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.