Inventor
NEWTON WILLIAM P
US9 patents
⚠️ This page may combine multiple inventors who share the name “NEWTON WILLIAM P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CALDWELL MFG CO
7 patentsUS5152032AOct 6, 1992
Window sash balance with tension and torsion spring
CALDWELL MFG CO30 citations92
US5119592AJun 9, 1992
Balance system for laterally biased sash guides
CALDWELL MFG CO29 citations92
US6032417AMar 7, 2000
Corner locking carrier shoe for tilt sash
CALDWELL MFG CO48 citations88
US4854558AAug 8, 1989
Sound deadener for window counterbalance spring
CALDWELL MFG CO19 citations81
US4672713AJun 16, 1987
Spring coupler for block and tackle window balance system
CALDWELL MFG CO20 citations79
US5694664ADec 9, 1997
Coupling for spiral counterbalance
CALDWELL MFG CO8 citations72
US6948279B1Sep 27, 2005
Support system for laterally removable sash
CALDWELL MFG CO7 citations71