Hollowell; Richard L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hollowell; Richard L..The latest application filed is for "beam climber battery charging in transfer station".
- Hollowell; Richard L. - Georgetown SC
- Hollowell; Richard L. - West Hartford CT
- Hollowell; Richard L. - Avon CT
- Hollowell; Richard L. - Hebron CT US
- Hollowell; Richard L. - Paris FR
- Hollowell; Richard L. - Amston CT
| Patent | Date |
|---|---|
| Rope-climbing self propelled elevator system Grant 11,434,107 - Hollowell , et al. September 6, 2 | 2022-09-06 |
| Elevator Motion Control After Electrical Protective Device Activation App 20220033215 - Hollowell; Richard L. ; et al. | 2022-02-03 |
| Beam Climber Battery Charging In Transfer Station App 20220033221 - Roberts; Randy ; et al. | 2022-02-03 |
| Rope-climbing Self Propelled Elevator System App 20210078829 - Hollowell; Richard L. ; et al. | 2021-03-18 |
| Rope-climbing self propelled elevator system Grant 10,875,743 - Hollowell , et al. December 29, 2 | 2020-12-29 |
| Elevator tension member stiffness estimation and monitoring Grant 10,399,820 - Roberts , et al. Sep | 2019-09-03 |
| Rope-climbing Self Propelled Elevator System App 20180362302 - Hollowell; Richard L. ; et al. | 2018-12-20 |
| Elevator Tension Member Stiffness Estimation And Monitoring App 20170008734 - Roberts; Randall Keith ; et al. | 2017-01-12 |
| Elevator Belt Assembly With Noise And Vibration Reducing Grooveless Jacket Arrangement App 20130237358 - Hollowell; Richard L. ; et al. | 2013-09-12 |
| Elevator belt assembly with noise and vibration reducing grooveless jacket arrangement Grant 8,444,515 - Baranda , et al. May 21, 2 | 2013-05-21 |
| Shock absorbing hitch Grant 8,047,335 - Fargo , et al. November 1, 2 | 2011-11-01 |
| Elevator system without a moving counterweight Grant 7,878,306 - Siewert , et al. February 1, 2 | 2011-02-01 |
| Elevator System Without A Moving Counterweight App 20070227825 - Siewert; Bryan Robert ; et al. | 2007-10-04 |
| Elevator system without a moving counterweight App 20060225965 - Siewert; Bryan Robert ; et al. | 2006-10-12 |
| Elevator sheave for use with flat ropes Grant 6,742,769 - Baranda , et al. June 1, 2 | 2004-06-01 |
| Elevator belt assembly with noise and vibration reducing grooveless jacket arrangement App 20030092524 - Baranda, Pedro S. ; et al. | 2003-05-15 |
| Elevator sheave for use with flat ropes App 20030025109 - Baranda, Pedro S. ; et al. | 2003-02-06 |
| Dual sheave rope climber using flat flexible ropes Grant 6,193,016 - Hollowell , et al. February 27, 2 | 2001-02-27 |
| Rope climbing elevator Grant 5,931,265 - Hollowell , et al. August 3, 1 | 1999-08-03 |
| Counteracting horizontal accelerations on an elevator car Grant 5,400,872 - Skalski , et al. * March 28, 1 | 1995-03-28 |
| Suspended elevator cab magnetic guidance to rails Grant 5,368,132 - Hollowell , et al. November 29, 1 | 1994-11-29 |
| Active control of elevator platform Grant 5,322,144 - Skalski , et al. * June 21, 1 | 1994-06-21 |
| Apparatus and method for controlling an elevator horizontal suspension Grant 5,321,217 - Traktovenko , et al. * June 14, 1 | 1994-06-14 |
| Active vibration control system for an elevator, which reduces horizontal and rotational forces acting on the car Grant 5,294,757 - Skalski , et al. * March 15, 1 | 1994-03-15 |
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