Invention Grant
- Patent Title: Valve having open-center spool with separated inserts
-
Application No.: US14876082Application Date: 2015-10-06
-
Publication No.: US09915355B2Publication Date: 2018-03-13
- Inventor: Matthew J. Beschorner , Mikhail A. Sorokin
- Applicant: Caterpillar Inc.
- Applicant Address: US IL Peoria
- Assignee: Caterpillar Inc.
- Current Assignee: Caterpillar Inc.
- Current Assignee Address: US IL Peoria
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner LLP
- Main IPC: F16K3/02
- IPC: F16K3/02 ; E02F9/22 ; F16K3/26 ; F16K11/22 ; F16K27/00

Abstract:
A spool assembly is disclosed for use in a valve. The spool assembly may have a cylindrical body with a first end, a second end, and a bore passing from the first end through the second end. The spool assembly may also have a first insert with a first land slidably disposed inside the bore at the first end, and a second insert separate from the first insert. The second insert may have a second land slidably disposed inside the bore at the second end.
Public/Granted literature
- US20170097098A1 VALVE HAVING OPEN-CENTER SPOOL WITH SEPARATED INSERTS Public/Granted day:2017-04-06
Information query