Mobile scaffold with series-connected hydraulic motor drive
US3961681A · kind A · utility
28Cited by
8References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 1, 1974 |
| Grant date | Jun 8, 1976 |
| Priority date | — |
| Expiry date | Jul 1, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60P1/02
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A base frame with four wheels, two of which are powered by separate hydraulic motors connected in series so that the fluid flowing through one motor then flows through the other. A speed control is provided whereby the constant output of a hydraulic pump either passes entirely through the motors or is partially bypassed around the pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.