Patent · US Expired

Electric knife, particularly for opening oysters

US4674154A · kind A · utility

11Cited by
4References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 22, 1985
Grant dateJun 23, 1987
Priority date
Expiry dateMar 22, 2005

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA47G21/066
  • WIPO fieldFurniture, games
  • WIPO sectorOther fields

Abstract

An electric oyster knife has a case (1), a blade holder (12) with a blade (13) slidably longitudinally between outer and inner positions with respect to the case, an electromagnet (2) mounted in the case for oscillating the blade holder between its two positions. An armature (7) is pivotally mounted in the case. The armature has a cam surface (11) for driving the blade holder toward its outer position, in a first position of the armature, and for allowing the blade holder to move to its inner position, in a second position of the armature.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.