Fluent material handling – with receiver or receiver coacting mea – Filling means with receiver or receiver coacting means – With receiver support – guide means – or shield
Reexamination Certificate
2000-04-18
2001-07-03
Douglas, Steven O. (Department: 3751)
Fluent material handling, with receiver or receiver coacting mea
Filling means with receiver or receiver coacting means
With receiver support, guide means, or shield
C141S144000, C141S170000
Reexamination Certificate
active
06253809
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The subject invention relates to a bottle-container filling machine of the type utilizing a feed screw to feed bottles to the filling assembly.
2. Description of the Prior Art
Such bottle container filling assemblies include a turret for moving containers having a neck presenting an open mouth in a filling path and a loading mechanism for loading containers onto the turret. In many instances the loading mechanism includes a screw having a groove for engaging the neck of containers to space and move the containers along a loading path. Examples of these assemblies are disclosed in U.S. Pat. No. 3,771,574 to Creed et al and 5,123,993 to Wiggins.
However, for various reasons including reducing friction and enhances sanitation, it is desirable to minimize the contact between the screw and the neck of the of the containers.
SUMMARY OF THE INVENTION AND ADVANTAGES
A container filling assembly comprising a turret for moving containers having a neck presenting an open mouth in a filling path and a loading mechanism for loading containers onto the turret. The loading mechanism includes a screw having a groove for engaging the neck of containers to space and move the containers along a loading path. The assembly is characterized by the groove in the screw having a narrow throat for engaging the neck of a container and a larger portion above the throat for establishing a space about the neck of a container spaced therein by the narrow throat.
Accordingly, the subject invention provides a screw, which minimizes contact with the neck of the bottle containers thereby reducing friction and enhancing sanitation.
REFERENCES:
patent: 2259748 (1941-10-01), Hullhorst
patent: 2571036 (1951-10-01), Heyne et al.
patent: 2854125 (1958-09-01), Johnson
patent: 3771574 (1973-11-01), Creed et al.
patent: 3783777 (1974-01-01), Killen et al.
patent: 3860104 (1975-01-01), Strauss
patent: 4013497 (1977-03-01), Wolf
patent: 4033804 (1977-07-01), Baldyga
patent: 4325775 (1982-04-01), Moeller
patent: 4599131 (1986-07-01), Matuszak
patent: 4660708 (1987-04-01), Willerding
patent: 4661195 (1987-04-01), Hopson
patent: 4715920 (1987-12-01), Ruppman et al.
patent: 4717442 (1988-01-01), Hopson
patent: 4817683 (1989-04-01), Laub, III et al.
patent: 4834826 (1989-05-01), Abe et al.
patent: 4956033 (1990-09-01), Martin et al.
patent: 5123993 (1992-06-01), Wiggins
Crown Simplimatic Incorporated
Douglas Steven O.
Howard & Howard
LandOfFree
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