P

Inventor

MCPHERSON DOUGLAS R

US10 patents
⚠️ This page may combine multiple inventors who share the name “MCPHERSON DOUGLAS R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

JWI LTD

3 patents
US5080760AJan 14, 1992

Pressurized forming board

JWI LTD27 citations91
US5011577AApr 30, 1991

Pressure control forming section

JWI LTD26 citations90
US5630910AMay 20, 1997

Clip fastener for a dewatering box

JWI LTD18 citations82

ASTENJOHNSON INC

3 patents
US7578906B2Aug 25, 2009

Headbox and stock delivery system for a papermaking machine

ASTENJOHNSON INC9 citations76
US7918969B2Apr 5, 2011

Composite construction for dewatering blades for a papermaking machine

ASTENJOHNSON INC5 citations61
US7540943B2Jun 2, 2009

Shaped slot vacuum dewatering box cover

ASTENJOHNSON INC2 citations61

(unassigned)

2 patents
US6126786AOct 3, 2000

Apparatus and method of generating stock turbulence in a fourdrinier forming section

34 citations90
US6361657B2Mar 26, 2002

Twin fabric forming section blade mounting

8 citations71

MCPHERSON DOUGLAS R

2 patents
US8097122B2Jan 17, 2012

Papermaking machine dewatering blade incorporating attachment mechanism

MCPHERSON DOUGLAS R0 citations45
US9404588B2Aug 2, 2016

Vacuum control valve for vacuum drainage system

MCPHERSON DOUGLAS R0 citations30