Package making – Apparatus for forming or partially forming receptacle and... – Forming by opening or setting up collapsed receptacle
Reexamination Certificate
2000-05-26
2001-05-15
Sipos, John (Department: 3721)
Package making
Apparatus for forming or partially forming receptacle and...
Forming by opening or setting up collapsed receptacle
C053S573000, C053S385100, C053S386100, C053S389100
Reexamination Certificate
active
06230475
ABSTRACT:
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not Applicable
BACKGROUND OF THE INVENTION
The present invention relates to an improved bag-loading machine and to an improved bag-filling machine and to a combination thereof and to an improved method for loading bags onto a carousel-type of bag-filling machine.
By way of background, carousel-filling machines are known in the art, as exemplified by U.S. Pat. No. 5,555,709. In the past, bags were manually loaded onto this type of machine while it was rotating. However, insofar as known, there was no efficient way of automatically loading bags onto a rotating carousel-type of bag-filling machine.
BRIEF SUMMARY OF THE INVENTION
It is one object of the present invention to provide an improved bag-loading machine for automatically loading bags onto a continuously rotating carousel-type of bag-filling machine.
Another object of the present invention is to provide a carousel-type of bag-filling machine having improved structure which permits it to be used in conjunction with an automatic bag-loading machine which loads bags onto the carousel-filling machine while the latter continuously rotates.
A further object of the present invention is to provide a method of automatically loading bags onto a continuously rotating carousel-type of bag-filling machine. Other objects and attendant advantages of the present invention will readily be perceived hereafter.
The present invention relates to a bag-loading machine comprising a main frame, a bag-carrying frame mounted on said main frame, a bag-opening frame mounted on said main frame, a first motor mounted on said main frame, a first linkage coupling said first motor to said bag-opening frame, a vacuum hose carried by said bag-opening frame, a second motor mounted on said main frame, a second linkage coupled between said second motor and said bag-carrying frame, and a blower mounted on said bag-carrying frame.
The present invention also relates to a bag-loading machine as set forth in the preceding paragraph in combination with a bag-filling machine, a bag-filling machine frame on said bag-filling machine, a second blower on said bag-filling machine frame, a movable trough-carrying member on said bag filling machine frame, a trough on said trough-carrying frame, an air duct coupled relative to said trough, and said air duct being movable with said trough to a position between said second blower and said bag-carrying frame.
The present invention also relates to a conveyor trough of a carousel-type of bag-loading machine comprising a trough frame, spaced sides extending upwardly from said trough frame, a conveyor between said spaced sides, inner and outer ends on said trough frame, a first pad fixedly mounted on said outer end of said trough frame, a second pad on said trough frame between said first pad and said inner end of said trough frame, an abutment on said trough frame between said second pad and said inner end of said trough frame, a first motor coupled to said second pad for moving said second pad toward and away from said first pad and into and out of engagement with said abutment, a third pad, and a second motor mounted on said outer end of said trough frame and coupled to said third pad for moving said third pad into and out of engagement with said first pad.
The present invention also relates to a carousel-type of bag-filling machine comprising a frame, a plurality of conveyor troughs mounted on said frame, each of said conveyor troughs including a trough frame, spaced sides extending upwardly from said trough frame, a conveyor between said spaced sides, inner and outer ends on said trough frame, a first pad fixedly mounted on said outer end of said trough frame, a second pad on said trough frame between said first pad and said inner end of said trough frame, an abutment on said trough frame between said second pad and said inner end of said trough frame, a first motor coupled to said second pad for moving said second pad toward and away from said first pad and into and out of engagement with said abutment, a third pad, and a second motor mounted on said outer end of said trough frame and coupled to said third pad for moving said third pad into and out of engagement with said first pad.
The present invention also relates to a method of loading bags onto a bag-filling machine having a plurality of conveyor troughs mounted on a continuously rotating carousel comprising the steps of mounting an assemblage of bags on a bag-loading machine proximate said carousel, initially opening a bag while it remains mounted on said bag-loading machine, blowing the bag to a fully open condition, raising the fully opened bag as a conveyor trough passes over it, and clamping the opposite sides of the bag to said conveyor trough.
The various aspects of the present invention will be more fully understood when the following portions of the specification are read in conjunction with the accompanying drawings wherein:
REFERENCES:
patent: 2234951 (1941-03-01), Belcher
patent: 2697543 (1954-12-01), Sawyer
patent: 2833097 (1958-05-01), Petrea
patent: 2918771 (1959-12-01), Wickliff
patent: 2973612 (1961-03-01), McGowan
patent: 3138907 (1964-06-01), Gerbe
patent: 3495378 (1970-02-01), Kipers
patent: 3842569 (1974-10-01), McClelland
patent: 4078358 (1978-03-01), Henderson
patent: 5001889 (1991-03-01), Mueller
patent: 5331792 (1994-07-01), Kitchen
patent: 5485714 (1996-01-01), Montalvo
patent: 5555709 (1996-09-01), Savigny
patent: 458620 (2000-04-01), None
Savigny Edward B.
Savigny James G.
AG-PAK, Inc.
Gastel Joseph P.
Sipos John
LandOfFree
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