公开(公告)号：US11846136B2

公开(公告)日：2023-12-19

申请号：US16797268

申请日：2020-02-21

申请人： Philip F. Lanzafame

发明人： Philip F. Lanzafame

IPC分类号： E06C7/04 ,  E06C1/12 ,  E06C5/32 ,  E06C5/36

CPC分类号： E06C7/04 ,  E06C1/12 ,  E06C5/32 ,  E06C5/36

摘要： Provided is a braking system for use with an extension ladder having a base section and a fly section movable relative to the base section via an adjustment rope. The braking system includes a bracket for attachment to the fly section. A pulley and an arm are secured to and movable relative to the bracket by the adjustment rope between a first position when no tension is applied to the rope and a second position when tension is applied to the adjustment rope. A cam is movable between an engaged position when the pulley and arm are in the first position with the cam engaging with the base section to prevent movement of the fly section relative to the base section, and a disengaged position when the pulley and arm are in the second position.

公开(公告)号：US10047561B1

公开(公告)日：2018-08-14

申请号：US15258795

申请日：2016-09-07

申请人： Philip F. Lanzafame

发明人： Philip F. Lanzafame

IPC分类号： E06C7/44 ,  E06C7/42

摘要： Provided is an adjustable extension for attachment to a ladder leg. The extension has an extension body and a friction surface that presses against the extension body to prevent movement of the extension body. The extension also includes a retainer that engages a retainer catch attached to the extension body to releasably hold the extension body in a retraced position, thereby allowing for one-handed operation and easy transportation of the ladder.

公开(公告)号：USD842127S1

公开(公告)日：2019-03-05

申请号：US29592669

申请日：2017-02-01

申请人： Philip F. Lanzafame

设计人： Philip F. Lanzafame

公开(公告)号：USD831228S1

公开(公告)日：2018-10-16

申请号：US29602562

申请日：2017-05-02

申请人： Philip F. Lanzafame

设计人： Philip F. Lanzafame

公开(公告)号：US10895110B2

公开(公告)日：2021-01-19

申请号：US16150907

申请日：2018-10-03

申请人： Philip F. Lanzafame

发明人： Philip F. Lanzafame

IPC分类号： E06C7/42 ,  E06C7/44 ,  E06C7/10

摘要： Provided is ladder having an extension leg movable longitudinally in first and second directions opposite one another, and a stabilizer arm pivotably coupled to and movable with the extension leg. The stabilizer arm is pivotable about an axis perpendicular to the first and second directions such that the stabilizer arm is rotated relative to the extension leg to contact a surface to stabilize the ladder in a sideways direction perpendicular to the first and second directions.

公开(公告)号：USD819230S1

公开(公告)日：2018-05-29

申请号：US29581452

申请日：2016-10-19

申请人： Philip F. Lanzafame

设计人： Philip F. Lanzafame

公开(公告)号：USD818610S1

公开(公告)日：2018-05-22

申请号：US29594869

申请日：2017-02-23

申请人： Philip F. Lanzafame

设计人： Philip F. Lanzafame

公开(公告)号：US20240084645A1

公开(公告)日：2024-03-14

申请号：US18516253

申请日：2023-11-21

申请人： Philip F. LANZAFAME

发明人： Philip F. LANZAFAME

IPC分类号： E06C7/04 ,  E06C1/12 ,  E06C5/32 ,  E06C5/36

CPC分类号： E06C7/04 ,  E06C1/12 ,  E06C5/32 ,  E06C5/36

摘要： Provided is a braking system for use with an extension ladder having a base section and a fly section movable relative to the base section via an adjustment rope. The braking system includes a first and a second position. When tension is applied to the rope, the spring mechanism allows upwards or downwards movement of the fly section relative to the base section. When tension is removed from the rope, the spring mechanism slows or resists upwards or downwards movement of the fly section relative to the base section regardless of the fly section's position relative to the base section.

公开(公告)号：US10337248B1

公开(公告)日：2019-07-02

申请号：US16038324

申请日：2018-07-18

申请人： Philip F. Lanzafame

发明人： Philip F. Lanzafame

IPC分类号： E06C7/44 ,  E06C7/42

摘要： Provided is an adjustable extension for attachment to a ladder leg. The extension has an extension body and a friction surface that presses against the extension body to prevent movement of the extension body. The extension also includes a retainer that engages a retainer catch attached to the extension body to releasably hold the extension body in a retraced position, thereby allowing for one-handed operation and easy transportation of the ladder.

公开(公告)号：US10107035B1

公开(公告)日：2018-10-23

申请号：US15297389

申请日：2016-10-19

申请人： Philip F. Lanzafame

发明人： Philip F. Lanzafame

IPC分类号： E06C7/42 ,  E06C7/10 ,  E06C7/44

摘要： Provided is an adjustable extension for a ladder leg having an outer housing, an inner housing movable longitudinally relative to the outer housing in first and second directions opposite one another, and a stabilizer arm pivotably coupled to and movable with the inner housing. The stabilizer arm is pivotable about an axis perpendicular to the first and second directions such that the stabilizer arm is rotated relative to the inner housing to contact a surface to stabilize the extension in a sideways direction perpendicular to the first and second directions.