公开(公告)号：US1783616A

公开(公告)日：1930-12-02

申请号：US33379229

申请日：1929-01-21

Applicant: HACHMUTH HENRY C

Inventor： HACHMUTH HENRY C

IPC: E06C1/20 ,  E06C7/42

CPC classification number: E06C1/20 ,  E06C7/423

公开(公告)号：US1423725A

公开(公告)日：1922-07-25

申请号：US42102120

申请日：1920-11-01

Applicant: MOHR CARL J ,  MOHR URBAN J

Inventor： MOHR CARL J ,  MOHR URBAN J

IPC: E06C7/16 ,  E06C7/42 ,  E06C7/46 ,  E06C7/48

CPC classification number: E06C7/48 ,  E06C7/16 ,  E06C7/42 ,  E06C7/46

公开(公告)号：US1381397A

公开(公告)日：1921-06-14

申请号：US33215819

申请日：1919-10-21

Applicant: LARKIN BRILES

Inventor： LARKIN BRILES

IPC: E06C1/20 ,  E06C7/42

CPC classification number: E06C1/20 ,  E06C7/42

公开(公告)号：US1379419A

公开(公告)日：1921-05-24

申请号：US38931720

申请日：1920-06-16

Applicant: REEVES MADISON W

Inventor： REEVES MADISON W

IPC: E06C1/20 ,  E06C7/42 ,  E06C7/44 ,  E06C7/46

CPC classification number: E06C7/46 ,  E06C1/20 ,  E06C1/38 ,  E06C7/423 ,  E06C7/44

公开(公告)号：US20250052116A1

公开(公告)日：2025-02-13

申请号：US18679770

申请日：2024-05-31

Applicant: Formosa Saint Jose Corp.

Inventor： Ming-Shun Yang

IPC: E06C7/50 ,  E06C7/16 ,  E06C7/42

Abstract: The present invention discloses multifunction ladder structures. The first embodiment includes a first ladder frame; a second ladder frame; and two combining assemblies that combine the second ladder frame with the first ladder frame. Another embodiment further includes an extension board, while a third embodiment includes two bolts set detachably fixed to the second ladder frame. With the implementation of the present invention, the multifunction ladder structures have the special benefit of being easy to install or operate; being able to insert and set firmly in between a tire and the wheel fender as a tire ladder; being able to stand firmly beside a car or other places as an A-shaped ladder; applying to tires of different size by adjusting the length of the foot rods; standing firmly on rough or inclined ground, roads or object surfaces; and with the adoption of the extension board, versatile applications are accomplished.

公开(公告)号：US20240426176A1

公开(公告)日：2024-12-26

申请号：US18828597

申请日：2024-09-09

Applicant: LITTLE GIANT LADDER SYSTEMS, LLC

Inventor： Bradley Scott MAXFIELD ,  N. Ryan MOSS ,  Brian B. RUSSELL

IPC: E06C7/50 ,  E06C1/32 ,  E06C1/383 ,  E06C7/14 ,  E06C7/18 ,  E06C7/42 ,  E06C7/46 ,  E06C7/48 ,  F16C11/10

Abstract: Ladders and ladder components are described herein, including multipurpose and adjustable ladders. In one embodiment, a ladder includes a first assembly having rails and rungs, a second assembly having rails and rungs, and one or more hinges coupling the first and second assemblies together such that the first and second assembly may be positioned relative to one another in at least a position or state and at least a second position or state. A top cap is coupled to the rails of the first assembly, such that when the first and second assemblies are in the first position, the rails of the second assembly do not contact the top cap. When the first and second assemblies are in the second position, each rail of the second assembly is at least partially nested in one of a pair of channels formed in the top cap.

公开(公告)号：US20230374858A1

公开(公告)日：2023-11-23

申请号：US18356079

申请日：2023-07-20

Applicant: Little Giant Ladder Systems, LLC

Inventor： N. Ryan Moss ,  Gary Jonas ,  Brian Russell ,  Sean R. Peterson

IPC: E06C7/44 ,  E06C7/42

CPC classification number: E06C7/44 ,  E06C7/423 ,  Y10T292/696 ,  E06C1/32

Abstract: Ladders, ladder components, adjustment mechanisms and related methods are provided herein. In one embodiment, a ladder may include an adjustment mechanism for adjusting, for example, a leveler, a stabilizer, or any two relatively displaceable components of the ladder. The adjustment mechanism may include an actuating mechanism having a first structure and a second structure slidably disposed adjacent the first structure, the second structure having a plurality of engagement surfaces. A body is coupled with the first structure. At least two engagement pins are slidably displaceable relative to the body, wherein the plurality of engagement surfaces and the at least two engagement pins are arranged such that only a single engagement pin of the at least two engagement pins is in abutting engagement with an engagement surface of the plurality of engagement surfaces at one time. At least one biasing member is configured to bias the at least two engagement pins towards engagement with the engagement surfaces.

公开(公告)号：US11795760B2

公开(公告)日：2023-10-24

申请号：US17068074

申请日：2020-10-12

Applicant: Core Distribution, Inc.

Inventor： Allen A. Caldwell ,  Mitchell I. Kieffer

IPC: E06C1/38 ,  E06C7/50 ,  E06C7/42 ,  E06C1/22

CPC classification number: E06C1/382 ,  E06C1/22 ,  E06C7/423 ,  E06C7/50

Abstract: A tripod assembly includes a plurality of columns disposed in a nested arrangement for relative axial movement in a telescopic fashion along a longitudinal axis of the plurality of columns between a fully-extended position and a collapsed position. When the columns are collapsed from the fully-extended position each column substantially nests within another one of the columns. The plurality of columns are received within the central post when the plurality of columns is in the collapsed position. The bracket assembly is coupled to the second end of the connecting rod, and the bracket assembly is configured to receive a selectable rung of a ladder therein. The bracket member is coupled to an uppermost one of the columns, and the bracket member includes a channel configured to receive a second selectable rung of the ladder.

公开(公告)号：US20230228151A1

公开(公告)日：2023-07-20

申请号：US18127773

申请日：2023-03-29

Applicant: OTTO LADDER SAFETY, INC.

Inventor： Clinton A. HAYNES ,  Daniel L. MORROW ,  Shannon R. READ ,  Joseph Krumme BULLARD

IPC: E06C7/00 ,  H04W4/80 ,  E06C7/42 ,  G01D5/14 ,  G01L1/22 ,  G08B21/02

CPC classification number: E06C7/003 ,  H04W4/80 ,  E06C7/42 ,  G01D5/145 ,  G01L1/22 ,  G08B21/02 ,  E06C1/18

Abstract: A ladder including sensors is provided. A remote computing device is also provided that communicates with the sensors to facilitate detection of various operating conditions. Methods for detection are also provided.

公开(公告)号：US11697965B2

公开(公告)日：2023-07-11

申请号：US16832765

申请日：2020-03-27

Applicant: OD TECH PTY LTD

Inventor： Peter O'Donnell ,  Ian Johnson ,  George Rezk

IPC: E06C7/48 ,  E06C7/18 ,  E06C7/04 ,  E06C1/12 ,  E06C7/00 ,  E06C7/42 ,  E06C1/36 ,  E06C1/34

CPC classification number: E06C7/48 ,  E06C1/12 ,  E06C1/34 ,  E06C1/36 ,  E06C7/003 ,  E06C7/04 ,  E06C7/18 ,  E06C7/42

Abstract: A ladder safety mechanism comprises at least one clamp, preferably a pair of spaced apart clamps, attachable part way along a ladder, to secure the ladder to part of a structure. In some embodiments, the mechanism includes at least one manually operated actuator, such as a rope or cable, coupled to the at least one clamp to enable a user located at the bottom of the ladder to open the at least one clamp to receive the part of a structure. In some embodiments, the at least one clamp is automatically secured to the part of the structure by placing the clamp onto the structure. The at least one manually operated actuator also enables a user located at the bottom of the ladder to open the at least one clamp to release the part of the structure. The at least one clamp is oriented substantially perpendicularly to a part of the structure to which the ladder is to be attached.