Adjustable trim position system
US5707263A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 1996 |
| Grant date | Jan 13, 1998 |
| Priority date | — |
| Expiry date | May 31, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H20/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system for a trimable marine stem drive shifts the trimable range on a conventional hydraulic trim system. The system includes an enlarged cylinder anchor pin hole in the drive shaft housing, an anchor pin smaller in size than the enlarged anchor pin hole located in the drive shaft housing, and a movable trim adjustment insert that is inserted into the enlarged anchor pin hole to secure the anchor pin in a fixed position within the enlarged hole. It is preferred that the enlarged anchor pin hole be a substantially horizontal elongated hole, and that the trim adjustment insert be placed rearward of the anchor pin to position the anchor pin in a forward position, or forward of the anchor pin to locate the anchor pin in a rearward position. The invention shifts the trimable range of the drive, while maintaining vibration isolation characteristics available in conventional hydraulic trim systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.