Locking mechanism for rake basket crank
US4138838A · kind A · utility
5Cited by
1References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 1, 1977 |
| Grant date | Feb 13, 1979 |
| Priority date | — |
| Expiry date | Aug 1, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32827
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A locking mechanism for the height adjusting suspension system of side delivery rake is disclosed. A support trunnion bearing for the rotatable axially-adjustable height control rod of a rake has at least one crown thereon to cooperatively engage a mating washer which is biased into contact therewith by a compression suspension spring to thereby impede relative rotational movement between the rod and the bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.