Patent · US Expired

Drive system for linear and rotary movements

US7285883B2 · kind B2 · utility

20Cited by

5References

15Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Erich Bott · Hollstadt, DE
Wolfgang Schneider · Marl, DE
Holger Schunk · Lendershausen, DE
Rolf Vollmer · Gersfeld, DE

Key dates

Filing date	May 28, 2004
Grant date	Oct 23, 2007
Priority date	—
Expiry date	Jan 14, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/18056
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A drive system includes a rotary drive unit for rotating a shaft and a linear drive unit for moving the shaft in a linear direction. To improve efficiency and shelf life, an energy storage is mechanically connected to the shaft for biasing the shaft to seek a linear movement in opposition to the linear direction. The energy storage absorbs the kinetic energy of the shaft and releases it again subsequently.

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