Boat trailer mounted bow entry ladder
US8636110B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2010 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Oct 27, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06C1/383
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In an first aspect, a ladder for mounting on a vehicle trailer includes an attachment bracket assembly for mounting on the trailer; a first side rail; a second side rail parallel to the first side rail; and a plurality of rungs pivotally connected to both the first and second side rails. The ladder is collapsible to decrease a distance between the first and second side rails. In a second aspect, a ladder for mounting on a vehicle trailer includes an attachment bracket; a first side rail; a second side rail parallel to the first side rail; a plurality of rungs connecting the first and second side rails; and a pivotal connection. The first and second side rails define a plane and the pivotal connection allows for rotation of the plane about a vertical axis. The pivotal connection is disposed between the attachment bracket and the first side rail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.