Hydraulically ejectable mineral cutting apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 7, 2002
Grant Date -
N/A
app pub date -
Aug 29, 2000
filing date -
Mar 3, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A mounting member (1), for a mineral cutting apparatus (2), has an enlarged head (3) incorporating an annular seating shoulder (4), whilst a circular section pin (5) extends integrally from the head (3) and is adapted to be received in a circular section socket (11) of a pick box (12) and to be retained therein, a circumferential groove (16) being provided intermediate the ends of the pins (5) to receive a fluid sealing member (17), with a first portion (24) of the pin (5) being of such diameter that, in use, it is a slide fit within a pick box socket (11), and with a second portion (25) of the pin (5), being of such diameter that, in use, it is an interference fit within a a pick box socket (11). The invention also includes a pick box; a mounting member and a pick box combination; a drum for a mineral cutting apparatus; mineral cutting apparatus; a road planing machine; a mining machine, and a tunnelling machine.
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 | |
---|---|---|
MINNOVATION LIMITED | BARNSLEY S70 2BB |
International Classification(s)

- 2000 Application Filing Year
- E21C Class
- 46 Applications Filed
- 23 Patents Issued To-Date
- 50 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Parrott, George Albert | Barnsley, GB | 13 | 110 |
# of filed Patents : 13 Total Citations : 110 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 30 Citation Count
- E21C Class
- 89.06 % this patent is cited more than
- 23 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 |
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