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US 2003/0192914 A1Published application
Fluid dispenser and lens inspection device
AssigneeFuji Photo Film Co., Ltd.
InventorsMasaya Morita, Ryo Mori, Fumio Yuito
Life of this patent
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AssigneeFuji Photo Film Co., Ltd.
InventorsMasaya Morita, Ryo Mori, Fumio Yuito
Estimating the term…
A fluid dispenser dispenses a fluid alternately from one of a pair of ports (29,31) that are provided on opposite ends of a syringe (26) by moving a piston (42) back and forth inside the syringe. A pair of stirrers (47,48) are provided in the syringe on opposite axial sides of the piston. The stirrers may each individually rotate on an axis that extends in parallel with the moving direction of the piston. A pair of stirrer driving rings (49,50) are mounted on an outer periphery of the syringe in correspondence with the stirrers. Magnets (55,56,59,60) are embedded in the stirrers and the stirrer driving rings such that the stirrer is rotated by magnetic fields that are generated from the stirrer driving ring, as the stirrer driving ring is rotated by a motor (51,52).
A fluid dispenser having a syringe with ports on opposite ends thereof, a piston movable inside said syringe back and forth, and a supply tank being connectable alternately to one of said ports depending upon moving direction of said piston, said fluid dispenser dispensing a fluid from one of said ports that is located on the end of said syringe toward which said piston is moving, while sucking the fluid from said supply tank into said syringe through the other of said ports, said fluid dispenser comprising:
A lens inspection method of inspecting a lens to determine whether said lens is defective or not, said lens inspection method comprising the steps of:
A lens inspection method of inspecting a lens to determine whether said lens is defective or not, said lens inspection method comprising the steps of:
A lens inspection method of inspecting a lens to determine whether said lens is defective or not, said lens inspection method comprising
A lens inspection device for inspecting a lens to determine whether said lens is defective or not, said lens inspection device comprising:
A lens inspection device for inspecting a lens to determine whether said lens is defective or not, said lens inspection device comprising:
A lens inspection system comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Backward citations are indexed for grants only.
Systems specially adapted for particular applications: investigating reagent band
Magnetic mixers; Mixers with magnetically driven stirrers: using supported or suspended stirring elements
Using supported or suspended stirring elements: using a rod for supporting the stirring element, e.g. stirrer sliding on a rod or mounted on a rod…
Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising: using moving elements, e.g. rotating blades
Term end not estimated
1. Field of the Invention
The present invention relates to a fluid dispenser that dispenses liquid or fluid from a container, called a syringe, by rising internal pressure of the syringe by a piston. More particularly, the present invention relates to a fluid dispenser for a lubricant containing solid materials, especially for a lubricant sprayed on a reused shutter mechanism before inspecting the shutter speed. The present invention relates also to a lens inspection system, especially for use in recycling reused lenses.
2. Background Arts
The above and other objects and advantages of the present invention will become apparent from the following detailed description of the preferred embodiments when read in association with the accompanying drawings, which are given by way of illustration only and thus are not limiting the present invention. In the drawings, like reference numerals designate like or corresponding parts throughout the several views, and wherein:
FIG. 1 is a perspective view illustrating essential parts of a lubricant coating system provided with a fluid dispenser according to an embodiment of the present invention;
FIG. 2 is an explanatory diagram illustrating the lubricant coating system of FIG. 1 in a position at the end of a forward movement of a piston;
In FIG. 1, a lubricant coating system 10 is constituted of a collection tank 11, a four-way switching valve 12, two-way switching valves 13 and 14, a supply tank 15, a dispenser 16, a needle valve 17 and other minor elements. The dispenser 16 makes a dispensing operation to put a constant amount of lubricant on an object to coat 18 through the needle valve 17. In this instance, the lubricant is highly volatile and contains solid components.
The object to coat 18 is placed in a predetermined posture on a pallet 19 and conveyed along a conveyer line 20. In a coating station, the pallet 19 is positioned by a positioning device, and the dispenser 16 is activated upon receipt of an end-of-positioning signal from the positioning device, to make the dispensing operation. The needle valve 17 is disposed with its nozzle 17a directed to a coating portion of the object 18. After the coating of the object 18 is finished, the positioning device releases the object upon receipt of an end-of-coating signal, so the coated object 18 is conveyed to the next process, and the object to coat 18 is moved in the coating process.
As shown in FIG. 2, the needle valve 17 is provided with a on-off valve 17b for opening and closing the nozzle 17a. The on-off valve 17b is actuated by compressed air that is supplied from a compressor 21. The on-off valve 17b is usually set open. A cleaning mechanism 22 is disposed in the vicinity of the nozzle 17a. The cleaning mechanism 22 uses the compressed air from the compressor 21, for blowing off the lubricant that is stuck to the nozzle 17a.