Inventor
ROBERTS WILLIAM J
US22 patents
⚠️ This page may combine multiple inventors who share the name “ROBERTS WILLIAM J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ELTRA CORP
5 patentsUS4354466AOct 19, 1982
Idle speed controller
ELTRA CORP33 citations90
US4086888AMay 2, 1978
Electronic vacuum modulator for controlling air flow to a throttle modulator mechanism for limiting engine speed and vehicle speed
ELTRA CORP20 citations74
US4368717AJan 18, 1983
Automatic shut-off circuit for electronic ignition system
ELTRA CORP18 citations67
US4347819ASep 7, 1982
Ignition spark advance using a constant peak to peak amplitude timing signal with a frequency tied to engine speed
ELTRA CORP3 citations63
US4371833AFeb 1, 1983
Speed switch
ELTRA CORP0 citations52
ALLIED CORP
4 patentsROBERTS WILLIAM J
3 patentsWOOSTER BRUSH CO
3 patentsUS5694688ADec 9, 1997
Method and apparatus for making paint roller cover
WOOSTER BRUSH CO54 citations93
US5537745AJul 23, 1996
Method and apparatus for making paint roller cover with thermo plastic core
WOOSTER BRUSH CO40 citations89
US6231711B1May 15, 2001
Methods and apparatus for making paint roller covers with thermoplastic cores
WOOSTER BRUSH CO29 citations87