Valve device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9115730
APP PUB NO 20120285568A1
SERIAL NO

13261374

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A valve device includes a valve housing (2) and a valve piston (4) axially displaceably in a housing bore (3). By valve piston movement, load connections (A, B) can alternately be connected to a pressure connection (P) and to a tank connection (T1, T2) by solenoid magnets (5, 6). Pilot control chambers (8, 10) pressurize piston back sides (9, 11). The control chambers (8, 10) are connectable via fluid-conducting connections (12, 13) to the pressure connection (P). Pilot control pistons (14, 15) release or close fluid-conducting connections (16, 17) between control chambers (8, 10) and the tank connection (T1, T2). One pilot control piston (14, 15) includes a ring channel (19) controlling a fluid-conducting connection (16, 17) between a pilot control chamber (8, 10) and a tank connection (T1, T2).

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • HYDAC FLUIDTECHNIK GMBH

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bill, Markus Heusweiler, DE 18 50
Bruck, Peter Althornbach, DE 41 204
Schulz, Frank Blieskastel-Bierbach, DE 24 96

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
11.5 Year Payment $7400.00 $3700.00 $1850.00 Feb 25, 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