Valve actuation system having lifter sleeves configured for control fluid communication with valve lifter activation-deactivation switches

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11808180
SERIAL NO

18114466

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

An engine valve actuation system includes a lifter sleeve having a control fluid slot formed therein and extending from an outer sleeve surface to an inner sleeve surface. A valve lifter is movable in a sleeve bore in the lifter sleeve and limited from rotation about a longitudinal axis. The valve lifter includes a hydraulically actuated activation-deactivation switch, and a control fluid port in continuous fluid communication with the control fluid slot.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • CATERPILLAR INC.

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Adams, Jeremy C Rapid City, US 1 0
Wiebrecht, Eric D Germantown Hills, US 6 11

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 May 7, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 May 7, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 May 7, 2035
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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