Monorail hoist or overhead crane having a bottom flange running gear and bottom flange running gear therefor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 25, 1993
Grant Date -
N/A
app pub date -
Mar 23, 1992
filing date -
Mar 22, 1991
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
A bottom flange running gear of a monorail has load-bearing running wheels on both sides of a preferably I-shaped running rail. Such a running gear has front and rear lateral guide rollers mounted on preferably vertical axles and in contact with the running rail. A preferably unilateral or one-sided load may be applied to the running gear, preferably by a traction motor. The invention proposes that at least one supporting roller carrier, preferably on the sidepiece of the running gear opposite the traction motor, can be linked coaxially to the axle of one of the guide rollers. The invention further proposes that a supplemental guide roller can be in contact, preferably under the force of a laterally positioned spring on the running rail, against the edge of the bottom flange of the running rail. Additionally, a supporting roller, mounted on a preferably horizontal supporting roller axle, may be in contact, from below, against the bottom flange of the running rail.
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 | |
---|---|---|
DEMAG CRANES & COMPONENTS GMBH | 58300 WETTER |
International Classification(s)

- 1992 Application Filing Year
- B60B Class
- 105 Applications Filed
- 32 Patents Issued To-Date
- 30.48 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Gersemsky, Udo | Herdecke, DE | 32 | 280 |
# of filed Patents : 32 Total Citations : 280 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 13 Citation Count
- B60B Class
- 72.73 % 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 |
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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 |
Full Text

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Sep 30, 2020 | 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 |
May 24, 2019 | AS | ASSIGNMENT | free format text: CHANGE OF NAME;ASSIGNOR:PERGO (EUROPE) AB;REEL/FRAME:051170/0294 Owner name: UNILIN NORDIC AB, SWEDEN Effective Date: May 24, 2019 |
May 02, 2017 | I | Issuance | |
Apr 12, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Oct 20, 2016 | P | Published | |
Jun 28, 2016 | F | Filing | |
Dec 23, 1999 | PD | Priority Date |

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