Richard E. Peruggi
28Patents
11h-index
31Co-inventors
75Inventor score
Filing activity: Jul 24, 1978 → Jun 7, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7575099B2 | Remotely resettable ropeless emergency stopping device for an elevator | Performing Operations; Transporting | 41 | Expired |
| US5373120A | Linear door motor system for elevators | Physics | 28 | Expired |
| US4186381A | Gasoline station registration and control system | Performing Operations; Transporting | 24 | Expired |
| US5651428A | Stationary actuator moving vane elevator car door coupling | Performing Operations; Transporting | 18 | Expired |
| US5732796A | Elevator car evacuation deterrent device | Performing Operations; Transporting | 17 | Expired |
| US5651427A | Elevator door coupling and hold-close apparatus | Performing Operations; Transporting | 15 | Expired |
| US5538106A | Rotationally stiff elevator car door coupling | Performing Operations; Transporting | 14 | Expired |
| US5736693A | Elevator door drive using dual secondary linear induction motor | Fixed Constructions | 14 | Expired |
| US5509504A | Velocity regulated, open current loop, variable voltage, variable frequency, linear induction motor drive for an elevator car door | Physics | 12 | Expired |
| US5487449A | Magnetic elevator door coupling | Performing Operations; Transporting | 11 | Expired |
| US5612518A | Linear induction motor door drive assembly for elevators | Performing Operations; Transporting | 11 | Expired |
| US5503248A | Maintaining open loop current drive to linear induction motor | Fixed Constructions | 11 | Expired |
| US5454447A | Elevator hoistway door bolt lock | Performing Operations; Transporting | 10 | Expired |
| US5668355A | Elevator cab door drive system | Performing Operations; Transporting | 10 | Expired |
| US5495918A | Smooth and quiet linear induction motor elevator door operation | Performing Operations; Transporting | 10 | Expired |
| US5816368A | Elevator cars switch hoistways while traveling vertically | Performing Operations; Transporting | 9 | Expired |
| US5857545A | Elevator system with overlapped roped-coupler segments | Performing Operations; Transporting | 8 | Expired |
| US5808246A | Triac drive for three-phase line-powered linear induction motor elevator door operator | Electricity | 8 | Expired |
| US9010499B2 | Multi-car elevator hoistway separation assurance | Performing Operations; Transporting | 8 | Active |
| US5669465A | Elevator hoistway door bolt lock | Performing Operations; Transporting | 5 | Expired |
| US5682023A | Time-optimal control of an AC line-driven linear motor elevator door operator | Physics | 5 | Expired |
| US5485896A | Rotary elevator car door coupling | Performing Operations; Transporting | 3 | Expired |
| US6578673B2 | Concrete elevator rail and guidance system | Fixed Constructions | 3 | Expired |
| US5494137A | Elevator door mounting system | Fixed Constructions | 3 | Expired |
| US6038980A | Transferring freight or passenger cabs between moving bogies | Performing Operations; Transporting | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.