Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Separating means
Reexamination Certificate
1999-11-12
2001-11-06
Walsh, Donald P. (Department: 3653)
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Separating means
C209S655000, C209S515000, C209S651000, C209S912000, C209S916000, C198S370010, C198S370040
Reexamination Certificate
active
06311848
ABSTRACT:
FIELD AND BACKGROUND OF THE INVENTION
The present invention refers to an actuating device for tiltable ejectors of fruit or the like provided as a unit in conveyor carts integrated into electronic classifiers.
Up to the present, these types of ejectors have been known to be actuated by a respectively lifting-ejector formed by a guided vertical shaft. The shaft is moved upwardly by a solenoid and controls, by pushing, the angular movement of the corresponding ejector member. The member is articulated on the cart, and consequently the overturning of the fruit, supported and retained elastically over said member, occurs toward a collection medium.
SUMMARY OF THE INVENTION
The inventive device includes in combination a lifting-ejector formed by a vertical shaft displaceable upwardly under control but resting and freely turnable. A fixed rectilinear deflector is the object responsible for locating the lifting-ejector in a position of non-actuation. An angularly displaceable deflector on one turnable shaft is rotatable by a control solenoid and an intermediate arm for directing the lifting-ejector toward an actuation ramp. This actuation ramp is comprised of a grooved member able to guide and push upwardly the lifting-ejector deflected so that in turn it pushes the ejector member provided in the conveyor cart and produces the overturning of the fruit supported on said ejector member.
With this device used during displacement of the conveyor cart, the lifting-ejector remains unactuated until the movable deflector moves. Movement is at a predetermined time which is set by the electronic computer of the classifier through the solenoid and the arm, so that it may proceed to direct it toward the actuation ramp where it is compelled by the same to move upwardly to produce, by pushing, the overturning of the ejector and consequently the fall of the fruit carried by the same toward means of collection the fruit.
Comparatively the advantages of the invented device have to do with the possibility of being able to vary the angle of the actuation ramp for purposes of producing the smoothest overturning of each type and variety of fruit. The invention also has a high frequency of use appropriately due to the small effort required by the movable deflector to turn the lifting-ejector due to the fact that the overturning force is produced by the actuation ramp.
For its structural details and to anticipate its true inventive scope, it may be said that it is characterized by including a lifting-ejector whose formative vertical shaft is supported and freely turnable, over the classifier bench. A lower end section of the shaft is parallel to its upper end section and with respect to the axis or direction of advance of the lifting-ejector. A fixed rectilinear deflector is followed by an angularly displaceable rectilinear deflector of the ejector and in turn is followed by a localized actuation ramp in the axis or direction of advance for the fruit. The movable deflector has a position at rest in which together with the fixed deflector, it determines the trajectory of non-actuation of said lifting-ejector. Another position toward the actuation ramp, determines the trajectory of actuation of the same lifting-ejector.
REFERENCES:
patent: 3918587 (1975-11-01), Drew, Jr.
patent: 4989719 (1991-02-01), Ballestrazzi et al.
patent: 5611419 (1997-03-01), LaVars
patent: 5664660 (1997-09-01), Prydtz et al.
patent: 5667054 (1997-09-01), Goor
patent: 5947361 (1999-09-01), Berger et al.
patent: 6158568 (2000-12-01), Erceg et al.
Zenzerovich Alberto Martin
Zenzerovich Fernando Juan
Miller Jonathan R.
Notaro & Michalos P.C.
Walsh Donald P.
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