Telescopic ram
US4008648A · kind A · utility
12Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 11, 1975 |
| Grant date | Feb 22, 1977 |
| Priority date | — |
| Expiry date | Nov 11, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B15/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A single-acting, three-stage, four-section telescopic ram for use in conjunction with a triple-lift type mast in a lift truck. The ram features an extremely low overall length when fully contracted, thus affording good operator visibility. The ram also is capable of producing surprisingly "high-lift" despite its low contracted profile. Further, the ram features an internal construction that produces constant lifting and lowering speeds for a load, as well as providing for positive control over the sequence of movements of parts in and on an associated mast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.