Tool gripper
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 7, 1993
Grant Date -
N/A
app pub date -
Sep 1, 1992
filing date -
Sep 9, 1991
priority date (Note) -
Expired
status (Latency Note)
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Importance

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Abstract
A tool gripper to remove a tool from and position the tool in a work spindle or a tool magazine, respectively, includes two tong-like gripper arms, a support attached to a tool changer on which the two gripper arms are mutually movably mounted, and an operating device to open and close the two gripper arms. To achieve a simple construction with only a few individual parts, and to avoid technically complicated hydraulic or pneumatic driving mechanisms, according to the invention a first spring is disposed between the two gripper arms to provide a closing force. Further, the support having a bore therein, is motor-driven and movably arranged on a column. A pin inserted in the bore, which is axially parallel to the column, may be shifted against a second spring, and a locking member laterally attached to the bore engages between the rear legs of the two gripper arms.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
DECKEL MAHO GMBH | D-87459 PFRONTEN |
International Classification(s)

- 1992 Application Filing Year
- B23Q Class
- 212 Applications Filed
- 75 Patents Issued To-Date
- 35.38 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Geissler, Alfred | Pfronten-Halden, DE | 34 | 198 |
# of filed Patents : 34 Total Citations : 198 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 8 Citation Count
- B23Q Class
- 5.22 % this patent is cited more than
- 32 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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 |
Full Text

Legal Events
Date | Code | Event | Description |
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Jul 29, 2024 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Jul 29, 2024 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Jun 21, 2024 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Jun 21, 2024 |
Feb 12, 2024 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Dec 23, 2019 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Dec 27, 2016 | CC | CERTIFICATE OF CORRECTION | |
Jun 21, 2016 | I | Issuance | |
Jun 01, 2016 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Feb 25, 2016 | ZAAA | NOTICE OF ALLOWANCE AND FEES DUE | free format text: ORIGINAL CODE: NOA |
Feb 25, 2016 | ZAAB | NOTICE OF ALLOWANCE MAILED | free format text: ORIGINAL CODE: MN/=. |
Jun 26, 2014 | P | Published | |
Nov 12, 2013 | F | Filing | |
Apr 30, 2002 | PD | Priority Date |

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