KOWALCZYK; Thomas M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for KOWALCZYK; Thomas M..The latest application filed is for "door system having a swing interlock system".
- KOWALCZYK; Thomas M. - Unionville CT
- Kowalczyk; Thomas M. - Farmington CT US
- Kowalczyk, Thomas M. - Famington CT
| Patent | Date |
|---|---|
| Door System Having A Swing Interlock System App 20200011109 - PATEL; Vinay N. ; et al. | 2020-01-09 |
| Slide Latching System For A Door System App 20190309538 - PATEL; Vinay N. ; et al. | 2019-10-10 |
| Slide door Grant 8,756,864 - Hamaker , et al. June 24, 2 | 2014-06-24 |
| Bypass door Grant 8,627,604 - Seymour , et al. January 14, 2 | 2014-01-14 |
| Sliding door with large opening Grant 8,443,549 - Salvietti , et al. May 21, 2 | 2013-05-21 |
| Door operating system Grant 8,365,469 - Kowalczyk , et al. February 5, 2 | 2013-02-05 |
| Bypass Door App 20120159851 - Seymour; Daniel R. ; et al. | 2012-06-28 |
| Slide Door App 20120073205 - Hamaker; Larry ; et al. | 2012-03-29 |
| Sliding Door With Large Opening App 20110214350 - Salvietti; Michael Arthur ; et al. | 2011-09-08 |
| Door operating system App 20080236048 - Kowalczyk; Thomas M. ; et al. | 2008-10-02 |
| Automatic door assembly with telescoping door arm App 20070261309 - Tommell; Steven G. ; et al. | 2007-11-15 |
| Automatic door assembly and door operator therefor Grant 6,786,006 - Kowalczyk , et al. September 7, 2 | 2004-09-07 |
| Power door kit Grant 6,588,153 - Kowalczyk July 8, 2 | 2003-07-08 |
| Automatic door assembly and door operator therefor App 20030097793 - Kowalczyk, Thomas M. ; et al. | 2003-05-29 |
| Retrofit power door assembly Grant 6,553,717 - St. John , et al. April 29, 2 | 2003-04-29 |
| Axial door operator App 20030005639 - Kowalczyk, Thomas M. | 2003-01-09 |
| Axial door operator Grant 6,481,160 - Kowalczyk November 19, 2 | 2002-11-19 |
| Retrofit power door assembly App 20020026750 - St. John, Robert A. ; et al. | 2002-03-07 |
| Automatic door assembly and door operator therefor Grant 6,336,294 - Kowalczyk , et al. January 8, 2 | 2002-01-08 |
| Low-cost, easy-to-use, dynamometer Grant 6,182,516 - Kowalczyk February 6, 2 | 2001-02-06 |
| Hold closed feature for elevator car doors Grant 5,918,706 - Kowalczyk , et al. July 6, 1 | 1999-07-06 |
| High performance linear induction motor door operator Grant 5,862,887 - Swaybill , et al. January 26, 1 | 1999-01-26 |
| Triac drive for three-phase line-powered linear induction motor elevator door operator Grant 5,808,246 - Peruggi , et al. September 15, 1 | 1998-09-15 |
| Time-optimal control of an AC line-driven linear motor elevator door operator Grant 5,682,023 - McHugh , et al. October 28, 1 | 1997-10-28 |
| Linear induction motor door drive assembly for elevators Grant 5,612,518 - Jaminet , et al. March 18, 1 | 1997-03-18 |
| Maintaining open loop current drive to linear induction motor Grant 5,503,248 - Peruggi , et al. April 2, 1 | 1996-04-02 |
| Smooth and quiet linear induction motor elevator door operation Grant 5,495,918 - Peruggi , et al. March 5, 1 | 1996-03-05 |
| Cammed wedge elevator car door coupling Grant 5,435,415 - Kulak , et al. July 25, 1 | 1995-07-25 |
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