Drop box for isolating received items

1. A mail drop box for isolating mail deposited therein, comprising:

a. a drop box housing;

b. a closable, removable chamber inside said drop box housing for receiving mail, said chamber being defined by a removable container having an opening in the top;

c. a plurality of mail transmitting chutes each having a deposit port at its upper end and an exit port at its lower end and arranged to receive mail through the deposit port and direct such mail into the closable chamber;

d. means for closing the opening in the removable container when desired to isolate the mail therein from the ambient atmosphere and permit removal of the container without exposing the ambient atmosphere to any hazardous material particles which may be on or in such mail;

e. a removal door in said drop box housing to permit removal of said removable container therethrough; and

f. a transparent door located adjacent to but inside of said removal door for allowing viewing of said opening of said removable container within said drop box housing when said removal door is open.

2. A drop box as defined in claim 1 wherein said transparent door includes a manipulation access port;

a manipulation device capable of extension into said drop box housing through said manipulation access port to manipulate said closing means by a user located outside said drop box housing without exposing the user to any hazardous materials which may be contained in or on the mail located within said removable container.

3. A drop box as defined in claim 2 wherein said manipulation device is an elongated member capable of extending into said drop box housing to actuate said closing means.

4. A drop box as defined in claim 2 wherein said removable container is a mail flat tray having a rectangular open top defining said opening and said closing means including a top cover adapted for engaging said opening in the top of the container and preventing air from escaping from said container.

5. A drop box as defined in claim 2 wherein said closing means closes said opening of said container during removal of said container from said drop box housing.

6. A drop box as defined in claim 5 wherein said closing means is a cover to engage and to close said container during removal of said container from said drop box housing.

7. A drop box as defined in claim 6 further comprising a pair of opposed horizontal rails for engaging said container within said drop box housing and for engaging said cover during removal of said container from said drop box housing.

8. A drop box as defined in claim 7 further comprising third and fourth securable doors located in opposing sides of said drop box housing and oriented generally orthogonally to said horizontal rails, wherein said horizontal rails and said third and fourth doors allow insertion of one removable container into said drop box housing and removal of another removable container from said drop box housing simultaneously.

9. A drop box as defined in claim 2 wherein said removable container is mounted on wheels for easy removal.

10. A mail drop box for isolating mail deposited therein comprising:

a. a drop box housing;

b. a closable, removable chamber inside said drop box housing for receiving mail, said chamber being defined by a removable container having an opening in the top;

c. a plurality of mail transmitting chutes each having a deposit port at its upper end and an exit port at its lower end and arranged to receive mail through the deposit port and direct such mail into the closable chamber;

d. means for closing the opening in the removable container when desired to isolate the mail therein from the ambient atmosphere and permit removal of the container without exposing the ambient atmosphere to any hazardous material particles which may be on or in such mail;

said closing means including a door hinged to the top of said removable container and arranged to be left open for receiving mail and for closure prior to removal of said container from said drop box housing.

11. A mail drop box for isolating mail deposited therein, comprising:

a. a drop box housing;

b. a closable, removable chamber inside said drop box housing for receiving mail, said chamber being defined by a removable container having an opening in the top;

c. a plurality of mail transmitting chutes each having a deposit port at its upper end and an exit port at its lower end and arranged to receive mail through the deposit port and direct such mail into the closable chamber;

d. means for closing the opening in the removable container when desired to isolate the mail therein from the ambient atmosphere and permit removal of the container without exposing the ambient atmosphere to any hazardous material particles which may be on or in such mail, said closing means being a shutter mounted to said removable container; and

wherein said chute and a side of said drop box housing form a compartment for storing said shutter in an open position, and said shutter is arranged for removable coupling to said container to provide closure of said shutter with the removal of said container from said drop box housing.

12. A mail drop box adapted for isolating items deposited therein, comprising:

a securable enclosure;

a depository port forming part of said securable enclosure and adapted to allow items to be dropped through said depository port into said securable enclosure;

a closeable container having an opening and located within said securable enclosure for receiving items dropped into said securable enclosure; and

a closure device on said container for closing said opening of said container;

a duct forming a channel for directing items from said depository port to said opening of said container when items placed in said depository port are to be directed into said container, and a device for preventing items from being directed through said channel when items placed in said depository port are not to be directed into said container.

13. A drop box as defined in claim 12 wherein said device may be used to prevent items from being directed into said container prior to removal of said container.

14. A drop box as defined in claim 12 wherein said device may be used to prevent items from being directed into said container during removal of said container.

15. A drop box adapted for isolating items deposited therein, comprising:

a securable enclosure;

a depository port forming part of said securable enclosure and adapted to allow items to be dropped through said depository port into said securable enclosure;

a closeable container having an opening and located within said securable enclosure for receiving items dropped into said securable enclosure; and

a closure device on said container for closing said opening of said container,

said depository port including a housing forming a reception chamber adapted for receiving items deposited into said drop box, and further wherein said housing includes an entrance and is adapted to allow opening of said entrance for receiving deposited items in said reception chamber; and further including a duct for directing items from the depository port to the opening in said container when deposited items are to be conducted to the container, and a device for preventing the directing of items from the depository port to the opening in said container when the container is to be removed.

16. A drop box adapted for isolating items deposited therein, comprising:

a securable enclosure;

a depository port forming part of said securable enclosure and adapted to allow items to be dropped through said depository port into said securable enclosure;

a closeable container having an opening and located within said securable enclosure for receiving items dropped into said securable enclosure;

a closure device on said container for closing said opening of said container; and

a chute in said enclosure forming a channel for directing items from said depository port to said opening of said container when items placed in said depository port are to be directed into said container, and a device in said enclosure for preventing items from being directed through said channel when items placed in said depository port are not to be directed into said container.

17. A drop box adapted for isolating items deposited therein, comprising:

a securable enclosure;

a depository port forming part of said securable enclosure adapted to allow items to be dropped through said depository port into said securable enclosure;

a closeable container having an opening and located within said securable enclosure for receiving items dropped into said securable enclosure;

a closure device on said container for closing said opening of said container; and

said depository port includes a housing forming a reception chamber adapted for receiving items deposited into said drop box, and further wherein said housing includes an entrance and is adapted to allow opening of said entrance for receiving deposited items in said reception chamber; and further including a chute for directing items from the depository port to the opening in said container when deposited items are to be conducted to the container, and a device for preventing the directing of items from the depository port to the opening in said container when the container is to be removed.

18. A drop box as defined in claim 17 wherein said chute forms a channel for directing items which it receives into said container when desired.