Coupler

Excavating – Combined or convertible – Having quick-connect coupling

Reexamination Certificate

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Details

C403S322100

Reexamination Certificate

active

07984576

ABSTRACT:
Couplers for attaching an accessory to an excavator arm of an excavator. Couplers having a first side for attaching the coupler to the excavator arm and a second side onto which the accessory will be coupled. The coupler includes a latch for selectively securing and releasing an attachment pin of the accessory in a jaw, groove, hook or slot in the second side of the coupler. The coupler is fully controllable from within the cab of the excavator and it allows improved security in the securement of the accessory to the coupler, i.e. preventing accidental decouplings, but while still allowing intentional decoupling operations to be carried out without undue burden.

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International Search Report (ISR) and Written Opinion from priority application No. PCT/GB/003324.
UK Intellectual Property Office, Examination Report, dated Apr. 19, 2010, 3 pages.
US Department of Labor, Hazards of Inadequately Securing Hydraulic Excavator Buckets When Using Quick Coupling Devices, Safety and Health Information Bulletin, Dated Jul. 22, 2005, 4 Pages.

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