Metal founding – With safety control means – Apparatus safety means
Reexamination Certificate
2007-11-27
2007-11-27
Johnson, Jonathan (Department: 1725)
Metal founding
With safety control means
Apparatus safety means
C164S267000, C164S312000, C164S154100
Reexamination Certificate
active
10886780
ABSTRACT:
An automated reciprocator for applying lubricant to the cavity of a die casting system having a safety bar for preventing the reciprocator from injuring a person or damaging equipment which may be present in the reciprocator travel path. The safety bar is movably carried on the lower side of the reciprocator and includes a sensor to detect relative movement between the safety bar and the reciprocator. The proximity sensor is coupled to a control system. If the safety bar contacts an object as the reciprocator is moving down, the sensor signals the control system and the reciprocator is stopped.
REFERENCES:
patent: 4214704 (1980-07-01), Nagai
patent: 5560466 (1996-10-01), Folk et al.
Alford Danny S.
Bumpus David E.
Marshall Olen L.
Thomason David R.
Conley & Rose, P.C.
Harkins Kristin Jordan
Johnson Jonathan
L&P Property Management Company
Lin I.-H.
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