Two oil chamber counterweight
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Aug 30, 2016
Grant Date -
Dec 10, 2015
app pub date -
Jun 6, 2014
filing date -
Jun 6, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A counterweight for use in a cone crusher that includes an inner oil chamber and an outer oil chamber to collect lubricating oil during operation of the cone crusher. The counterweight includes a vertical separating wall that receives a splash shield. The vertical separating wall and splash shield define an inner oil chamber while an outer oil chamber is defined by the splash shield, the vertical separating wall and an inner wall of the counterweight. Both the inner and outer oil chambers include drain holes that allow lubricating oil to pass through a generally horizontal floor of the counterweight. The combination of the inner and outer oil chambers allows oil to quickly exit the counterweight into the main oil sump and reduces the amount of oil that gets exposed to the upper seal assembly which reduces the passage of oil past seal assemblies formed in the cone crusher.
First Claim
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Family
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
METSO OUTOTEC USA INC | 20965 CROSSROADS CIRCLE WAUKESHA WI 53186 |
International Classification(s)

- 2014 Application Filing Year
- B02C Class
- 388 Applications Filed
- 313 Patents Issued To-Date
- 80.68 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Biggin, David Francis | Burlington, US | 4 | 31 |
# of filed Patents : 4 Total Citations : 31 |
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Patent Citation Ranking
- 0 Citation Count
- B02C Class
- 0 % this patent is cited more than
- 9 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 29, 2028 |
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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Apr 08, 2021 | 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 |
Aug 31, 2018 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SMARTRAC TECHNOLOGY FLETCHER, INC.;REEL/FRAME:053943/0024 Owner name: SMART COSMOS SOLUTIONS INC., OHIO Effective Date: Sep 24, 2020 free format text: MERGER AND CHANGE OF NAME;ASSIGNORS:EAPEIRON SOLUTIONS INC.;SMARTRAC TECHNOLOGY FLETCHER, INC.;REEL/FRAME:053942/0902 Owner name: SMARTRAC TECHNOLOGY FLETCHER, INC., NORTH CAROLINA Effective Date: Aug 31, 2018 |
May 11, 2018 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NEOLOGY, INC.;SINGLE CHIP SYSTEMS CORP.;REEL/FRAME:046321/0793 Owner name: SMARTRAC TECHNOLOGY FLETCHER, INC., NORTH CAROLINA Effective Date: May 11, 2018 |
Oct 17, 2017 | I | Issuance | |
Sep 27, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Sep 08, 2016 | P | Published | |
Jun 07, 2016 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LIU, JUN;ZHU, JEFFREY;SIGNING DATES FROM 20060425 TO 20080702;REEL/FRAME:038829/0982 Owner name: NEOLOGY, INC., CALIFORNIA |
May 17, 2016 | F | Filing |

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