Receptacles – Freight containers – Including inner bag liner
Patent
1988-07-12
1989-11-28
Michalsky, Gerald A.
Receptacles
Freight containers
Including inner bag liner
220211, 220260, B65F 108
Patent
active
048831891
DESCRIPTION:
BRIEF SUMMARY
The invention consists of a pick-up equipment for infectious or otherwise contaminated waste, to be used for instance in hospitals, doctors' offices, laboratories and similar institutions; the waste is disposed of in a container held by a support, and when the container is full it is closed tight by means of the lid provided.
Medical waste, such as those found in hospitals, doctors' offices, laboratories or similar institutions, can be very infectious. Such waste must be collected, stored and disposed of, without risking the release of further contamination, whether during collection, storage or disposal. In the said institutions, the waste has usually been disposed of in open plastic bags, or manually thrown into plastic containers. When full, these are closed tight by hand or with a lid and finally taken away for incineration.
It has been shown that this method of disposal is hazardous, first because of the manual interventions, and second due to the opening and closing by hand of the plastic containers, which causes turbulence in the air mass above the container during disposal and closing. This may help disease carriers enter the environment. The closing and opening result in the airborne transportation of poison or pathogenic disease carriers from within the container.
Therefore, the hazards of this technique should be removed and replaced by equipment for the hygienic disposal of waste, which would avoid as much as possible contact with the waste container and completely prevent any spreading of disease carriers, while making use of well-known containers. The container must be closed tight without any risk of contamination. Any infection hazard due to the airborne transportation of micro-organisms or toxic dust must be avoided as much as possible.
These requirements are met by the equipment described above, whose specific feature is the release-ready lid held on the support by means of the rotating lid holder which is actuated by the motorized drive and which provides the opening and closing of the container, while the lid is shut down loosely on the container during the filling phase; another drive linked to the device closes the lid holder with the lid down tight onto the container, and releases the lid once it has been connected to the container.
The equipment carries out two different functions which are both essential to the operation. First, the lid holder is raised by motor with the lid almost in slow-motion, which experience shows excludes the possibility of turbulence. The lid holder is always activated when new waste is thrown into the container. The second function consists of keeping the lid ready for closing in the lid holder: during the filling phase it is always closed loosely on the container, and when the container is full it is pressed tight on the container by means of the lid holder and the support. Therefore, in the corresponding lid-container assembly the container clamps onto and covers the lid, therefore ensuring a secure closing. This operation is done while the equipment is closed; it is fully automatic.
The container can have a beaded edge. This is important if the support includes an open pick-up receptacle fixed under the beaded edge of the container, which carries the container even when significant forces are applied.
The container can be raised and lowered alone or with the pick-up receptacle. The bottom of the receptacle can be fitted with a hydraulic piston, a screw spindle or a brace stool. These applications are well-known from specialists of research techniques and are possible constructive solutions.
To maintain the container and to have a smooth operation, the bottom of the receptacle is moulded on the shape of the plate, which is raised and lowered by a drive.
The lid holder is fitted with spring clamps or alternatively rubber clamps. The lid can be simply placed in these clamps, and it is then automatically removed. The clamping force is set so that the lid, which is tightly fitted on the container, can be released from the clamps.
The lid holder is tilted by
REFERENCES:
patent: 4489810 (1984-12-01), Curtis
patent: 4552720 (1985-11-01), Baker, Sr. et al.
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