Ground engaging assembly for applying force to ground and ground engaging vehicle incorporating such assembly
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Apr 5, 2016
Grant Date -
Dec 12, 2013
app pub date -
Jun 6, 2013
filing date -
Jun 8, 2012
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
A roller assembly for applying force to the ground is disclosed. The assembly includes a body adapted to be mounted to a vehicle for moving the assembly, and supports including a first support member supporting a plurality of rollers for applying force to the ground, and a respective piston connected to each roller, the rollers connected via a respective pressure chamber to the corresponding first support member to resist movement of the pistons towards the first support member. The first support member pivotably connected to the body via a first axis such that pivoting movement of the first support member about the first axis as a result of a first torque about an axis has a component about an axis transverse to the direction of travel such that engagement of the rollers with the ground causes a second torque on the first support member opposing the first torque.
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 | |
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PEARSON ENGINEERING LIMITED | NEWCASTLE UPON TYNE NE15 6UX |
International Classification(s)

- 2013 Application Filing Year
- F41H Class
- 251 Applications Filed
- 219 Patents Issued To-Date
- 87.26 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Cronk, Richard Leonard | Belsay, GB | 3 | 35 |
# of filed Patents : 3 Total Citations : 35 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 3 Citation Count
- F41H Class
- 9.26 % this patent is cited more than
- 9 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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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 5, 2027 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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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Jun 25, 2012 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
May 27, 2012 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Jan 09, 2012 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Dec 08, 2010 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
May 27, 2008 | I | Issuance | |
Nov 23, 2006 | P | Published | |
Feb 07, 2006 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YONEZAWA, KEITARO;HARUNA, YOSUKE;REEL/FRAME:017312/0423 Owner name: KOSMEK LTD., JAPAN Effective Date: Feb 07, 2006 |
Aug 10, 2004 | F | Filing | |
Aug 25, 2003 | PD | Priority Date |

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