Drive unit for actuating a parking brake in a vehicle

Patent 6837357 Issued on January 4, 2005. Estimated Expiration Date:

October 28, 2022. 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

Rotary pump with a thermally conductive housing
Patent #: 5810568
Issued on: 09/22/1998
Inventor: Whitefield, et al.

Actuation device for a cable-operated parking brake for a motor vehicle
Patent #: 6193022
Issued on: 02/27/2001
Inventor: Bode

Hydraulic vehicle brake with blocking means and method for operating same
Patent #: 6394235
Issued on: 05/28/2002
Inventor: Poertzgen, et al.

Electric parking brake
Patent #: 6533082
Issued on: 03/18/2003
Inventor: Gill, et al.

Electric park brake
Patent #: 6550598
Issued on: 04/22/2003
Inventor: Drennen

Brake application device for a motor vehicle brake Patent #: 6666305
Issued on: 12/23/2003
Inventor: Vohla

Inventor

Peter, Cornelius

Assignee

TRW Automotive Electronics & Components GmbH & Co. KG

Application

No. 10281609 filed on 10/28/2002

US Classes:

192/219.4, Emergency or parking brake192/222, Electromagnetic192/223.1, Transversely engaged positive brake188/2D, Bowdin wire-operated188/31, Positive lock188/72.3, And means for retracting brake element188/157, Electric motor on staff417/423.8, Having additional means to remove heat from pump or motor188/72.6, And/or mechanical linkage188/156, Electric and mechanical188/158Electric

Examiners

Primary: Rodriguez, Saul

Attorney, Agent or Firm

Tarolli, Sundheim, Covell & Tummion L.L.P.

Foreign Patent References

2640770 DE 03/01/1978
3210402 DE 09/01/1983
197 03 417 DE 08/01/1998
19818339 DE 02/01/2000
19945702 DE 04/01/2001
1 231 119 EP 08/01/2002
1558283 GB 12/01/1979
WO9015743 WO 12/01/1990

International Class

B60T 710

Abstract

A compact drive unit for actuating parking brakes is provided. The drive unit has a reduction gear that is formed by a two-stage belt drive, in combination with a drive motor that is made up of a brushless direct current motor. The two-stage belt drive preferably consists of two toothed belt drives functionally arranged in series; the direct current motor preferably has an external rotor with a rare-earth magnetic ring.