Inventor
YAPP MARTIN G
US7 patents
⚠️ This page may combine multiple inventors who share the name “YAPP MARTIN G”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AIRFLOW RES & MFG
4 patentsUS4946348AAug 7, 1990
Centrifugal fan with airfoil vanes in annular volute envelope
AIRFLOW RES & MFG140 citations96
US5489186AFeb 6, 1996
Housing with recirculation control for use with banded axial-flow fans
AIRFLOW RES & MFG202 citations94
US4900228AFeb 13, 1990
Centrifugal fan with variably cambered blades
AIRFLOW RES & MFG53 citations94
US5297931AMar 29, 1994
Forward skew fan with rake and chordwise camber corrections
AIRFLOW RES & MFG68 citations93