Ladder leveler and method
US10612303B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2017 |
| Grant date | Apr 7, 2020 |
| Priority date | — |
| Expiry date | Aug 15, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06C7/426
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A ladder upon which a user climbs having a first rail. The ladder having a second rail. The ladder having rungs attached to the first and second rails upon which the user steps. The ladder having a first leveler attached to the first rail. The first leveler having a foot peg and a latch. When the user presses on the foot peg and the latch with the user's foot when the leveler is in an extended state, the first leveler moves into a retracted state. The ladder having a second leveler attached to the second rail. A method for a user to use a ladder. The method has the step of the user pushing with the user's foot against a foot peg and latch of a first leveler to cause the first leveler to move to a retracted state relative to a first rail of the ladder in which the first leveler is. There is the step of the user pushing only against the foot peg but not the latch with the user's foot when the leveler is in the retracted state causing the first leveler to move to an extended state relative to the first rail and be maintained in the extended state. A leveler which positively prevents inadvertent retraction of the leveler from an extended state to a retracted state. A ladder having a mo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.