Electric kitchen appliance with multiple functions for treating foodstuffs

Patent 5071077 Issued on December 10, 1991. Estimated Expiration Date:

January 15, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3611358

Magnetic safety interlock method and apparatus for food processor
Patent #: 4371118
Issued on: 02/01/1983
Inventor: Sontheimer , et al.

Dual cover and feed tube protector actuation apparatus for a food processor
Patent #: 4506836
Issued on: 03/26/1985
Inventor: Williams

Magnetic safety interlock for a food processor utilizing vertically oriented, quadrant coded magnets
Patent #: 4629131
Issued on: 12/16/1986
Inventor: Podell

Food processor with adapters for transmission of torque to rotary tools
Patent #: 4700903
Issued on: 10/20/1987
Inventor: Henn

Magnetic safety switch device for food processor
Patent #: 4741482
Issued on: 05/03/1988
Inventor: Coggiola , et al.

Detection and display device for automatic service expresso coffee machine Patent #: 4787299
Issued on: 11/29/1988
Inventor: Levi , et al.

Inventors

Application

No. 642237 filed on 01/15/1991

US Classes:

241/36, Of comminutor drive99/492, By safety means99/511, And a centrifugal extractor241/92, Radial comminuting face241/282.2, Detachably secured to a rotary element366/142, WITH TEST, SIGNAL, OR INDICATOR MEANS366/347COVER OR SHIELD FOR MIXING CHAMBER

Examiners

Primary: Rosenbaum, Mark
Assistant: Chin, Frances

Attorney, Agent or Firm

Young & Thompson

Foreign Patent References

2082713 GB. 03/13/1982
3311291 DE. 10/13/1984

International Class

B02C 018/16

Foreign Application Priority Data

1990-01-26 FR

Abstract

An electric kitchen appliance with mulitiple functions for treating foodstuffs comprises a casing (1,1') of which a base (2, 2') is adapted to receive various accessories comprising a bowl (3) provided with a cover (4) and a tool (5, 6, 8), and an electrical control device for the current supply of the motor comprising a detector for the presence of the cover on the bowl and a speed changer for the motor. The electric control device of the motor comprises also a detector of the presence of the bowl on the base, as well as structure for the identification of the covers which are associated with the detector for the presence of the cover on the bowl and which are adapted to control the speed changer so as to match to each cover an appropriate speed of the tool (5, 6, 8).