Nicholas A. Dragomir

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Alliance, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Push-pull chain drive door operator system
- Patent number 5,927,690
- Issue date Jul 27, 1999
- Overhead Door Corporation
- James A. White
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Clutchless screw drive door operator
- Patent number 5,664,372
- Issue date Sep 9, 1997
- GMI Holdings, Inc.
- Gregory Ernest Williams
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Clutchless screw drive door operator
- Patent number 5,568,704
- Issue date Oct 29, 1996
- GMI Holdings, Inc.
- Gregory E. Williams
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Limit switch arrangement for garage door operator
- Patent number 5,243,784
- Issue date Sep 14, 1993
- GMI Holdings, Inc.
- Louis G. Whitaker
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Motor assembly for chain-drive garage door operator
- Patent number 5,221,869
- Issue date Jun 22, 1993
- GMI Holdings, Inc.
- Gregory E. Williams
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES