Elevator system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9394141
APP PUB NO 20140138188A1
SERIAL NO

14129749

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A shaft door device and a cab door device are included in an elevator system. The shaft door device has a shaft door and a shaft door closer, and the cab door device includes a cab door. The shaft door closer is operatively connected to the shaft door such that a closing force is exerted onto the shaft door. This provides an improved elevator system which allows a quick opening of the shaft door with an energy-efficient and compact door controlling device. This is achieved by including a compensator which can be operatively connected to the shaft door such that the compensator compensates for at least a part of the closing force acting on the shaft door at least in phases during the opening process of the shaft door.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • SIEMENS AKTIENGESELLSCHAFT

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Krause, Michael Hannover, DE 60 427
Krause, Uwe Pattensen, DE 19 47
Sonntag, Guido Gehrden, DE 11 39
Wittkowski, Michael Telgte, DE 3 7

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Jan 19, 2024
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 19, 2028
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00