Inventor
Frederick H. Barker
Inventor
Bristol, CT, US
Overview
Patents· 25 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B66Bprimary
B66BElevators77%
B61BRailway systems6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
B61KAuxiliary equipment specially adapted for railways, not otherwise provided for3%
E04FFinishing work on buildings, e.g. stairs, floors3%
F16FSprings3%
PatentTitleYear
6,981,575'Concrete rail safety device for an elevator car'20066,578,673'Concrete elevator rail and guidance system'20036,173,816'Hallway-entered destination information in elevator dispatching'20016,123,176'Rope tension monitoring assembly and method'20006,038,980'Transferring freight or passenger cabs between moving bogies'20005,969,304'Elevator system having high rise elevator without express zone'19995,950,769'Bridge rails for horizontally moveable passenger or freight cab'19995,924,524'Integrated, multi-level elevator shuttle'19995,862,886'Pretorque to unload elevator car/floor locks before retraction'19995,861,084'System and method for minimizing horizontal vibration of elevator compensating ropes'19995,861,586'Horizontal and vertical passenger transport'19995,829,553'Fail-safe movement of elevator cabs between car frames and landings'19985,823,299'Shuttle elevators feeding local elevators'19985,785,153'Synchronizing elevator arrival at a level of a building'19985,773,772'Transferring elevator cabs between non-contiguous hoistways'19985,771,995'Locking elevator car frame to building during loading/unloading horizontally moveable cab'19985,758,748'Synchronized off-shaft loading of elevator cabs'19985,752,585'Elevator shuttle with auxiliary elevators at terminals'19985,749,441'Extra deck elevator shuttle'19985,695,024'Car operated safety gate for horizontally transferrable elevator cab'19975,663,539'Passenger transfer, double deck, multi-elevator shuttle system'19975,660,249'Elevator cabs transferred horizontally between double deck elevators'19975,655,625'Emergency elevator cab commandeering shuttle'19975,651,426'Synchronous elevator shuttle system'19975,601,156'Maintaining communications and power during transfer of horizontally moveable elevator cab'1997Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1997–2006Patents assigned to OTIS ELEVATOR CO (25)· patent assignee history
1997–2006Based in Bristol, CT, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| OTIS ELEVATOR CO | 25 | 1997–2006 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bristol, CT, US | 25 | 1997–2006 |