Invention Grant
- Patent Title: Dock levelers and associated systems and methods
- Patent Title (中): 底座调平器及相关系统和方法
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Application No.: US12862638Application Date: 2010-08-24
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Publication No.: US08407842B2Publication Date: 2013-04-02
- Inventor: Michael Story , Jeff Limbaugh , Richard K. Hoofard
- Applicant: Michael Story , Jeff Limbaugh , Richard K. Hoofard
- Applicant Address: US TX Carrollton
- Assignee: 4Front Engineered Solutions, Inc.
- Current Assignee: 4Front Engineered Solutions, Inc.
- Current Assignee Address: US TX Carrollton
- Agency: Perkins Coie LLP
- Main IPC: E01D1/00
- IPC: E01D1/00

Abstract:
Dock levelers, such as mechanical dock levelers, are described herein. In one embodiment, a mechanical dock leveler includes a ramp having a lip pivotally attached to a forward edge. A ramp lifting system is configured to assist upward rotation of the ramp as it is manually raised. In this embodiment, a lip lifting system is operably coupled to the ramp lifting system so that the ramp is initially “downward biased” prior to being raised, and then becomes at least partially supported in a raised position by the lip lifting mechanism, once the lip lifting mechanism is engaged.
Public/Granted literature
- US20110047725A1 DOCK LEVELERS AND ASSOCIATED SYSTEMS AND METHODS Public/Granted day:2011-03-03
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