- 专利标题： Extension Ladder and Methods of Making and Using an Extension Ladder
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申请号： US17379714申请日： 2021-07-19
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公开(公告)号： US20220025701A1公开(公告)日： 2022-01-27
- 发明人: Michael Scheurich , Tek Lentine , Jerry Lauricella , Slavisa Dacic , Devin Hughes , David Pozgay
- 申请人： Michael Scheurich , Tek Lentine , Jerry Lauricella , Slavisa Dacic , Devin Hughes , David Pozgay
- 申请人地址： US IL Gilberts; US IL Aurora; US SC Charleston; US IL Hanover Park; US IL Itasca; US IL Wilmette
- 专利权人： Michael Scheurich,Tek Lentine,Jerry Lauricella,Slavisa Dacic,Devin Hughes,David Pozgay
- 当前专利权人： Michael Scheurich,Tek Lentine,Jerry Lauricella,Slavisa Dacic,Devin Hughes,David Pozgay
- 当前专利权人地址： US IL Gilberts; US IL Aurora; US SC Charleston; US IL Hanover Park; US IL Itasca; US IL Wilmette
- 主分类号： E06C1/12
- IPC分类号： E06C1/12 ; E06C7/04 ; E06C7/02
摘要：
An extension ladder having a base section having a first base rail and a second base rail in parallel and spaced relationship with the first base rail and rungs attached to and between the first and second base rails. The extension ladder having a fly section having a first fly rail and a second fly rail in parallel and spaced relationship with the first fly rail and rungs attached to and between the first and second fly rails. The fly section in sliding engagement with the base section. The extension ladder having a force applicator attached to the base section and the fly section which offsets some or all weight of the fly section. A method for using an extension ladder. A method for manufacturing an extension ladder.
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