Actuating drive having a wound flat spring as a restoring spring, which flat spring is designed as a constant-force spring and acts directly on an actuation connection point of the actuating drive
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 28, 2023
Grant Date -
N/A
app pub date -
Feb 20, 2020
filing date -
Feb 21, 2019
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Various embodiments of the teachings herein include an actuating drive comprising: a drive element; an actuation element; and a restoring spring. The drive element drives the actuation element indirectly about an actuation axis. The actuation element includes a shaft portion concentric to the actuation axis and extends at least partially circumferentially. The restoring spring includes a wound flat spring providing a restoring torque on the actuation element, acting tangentially on the shaft portion, and a free spring end tangentially fastened to the shaft portion. The free spring end is radially externally disposed with respect to the spring axis and fastened tangentially to the shaft portion. The spring is mounted rotatably so the spring axis is radially spaced apart from the actuation axis and aligned parallel to the actuation axis.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SIEMENS SCHWEIZ AG | 8047 ZÜRICH |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Konrad, Hilmar | Baar, CH | 13 | 43 |
# of filed Patents : 13 Total Citations : 43 | |||
Schilter, Felix | Altdorf, CH | 6 | 57 |
# of filed Patents : 6 Total Citations : 57 |
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- 2 Age
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Maintenance Fees
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3.5 Year Payment | $1600.00 | $800.00 | $400.00 | May 28, 2027 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 28, 2031 |
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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 |
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May 24, 2021 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MURAMATSU, KATSUYA;URUSHIBATA, AKITO;SIGNING DATES FROM 20210511 TO 20210513;REEL/FRAME:056323/0550 Owner name: NIHON PLAST CO., LTD., JAPAN |
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