Patent US3650226A successfully refreshed from Google Patents.
US3650226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Document destruct file
Assignee: Mosler Safe Co
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Filing: 1970-11-12
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Granted: 1972-03-21
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Expires: 1990-11-12
Abstract
Abstract A security file so constructed as to facilitate expeditious destruction of documents and materials contained in the file. The file contains oxidizing panels which, upon ignition, burn and destroy the contents of the file. A flue extends along the back or the side walls and along the bottom of the cabinet. Containers of water are located in the bottom of the cabinet. The containers are made from a relatively low melting temperature material so that ignition of the oxidizing panels causes the containers to melt and the water contained in the containers to spill out and fill a portion of the flue chamber through which the gases of combustion must pass and be cooled before exiting from the cabinet.
Inventors
- 👤 John P Conroy
- 👤 Kendall H Grimes
- 👤 Robert W Maynard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:14
CPC Classifications
E; E05; E05G; E05G1/00; E05G1/14; A; A47; A47B; A47B63/00; F; F23; F23G; F23G7/00; F23G7/003; E05Y; E05Y2900/00; E05Y2900/20
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
226 words
A multiple drawer security file comprising a cabinet having side walls, a top and a bottom wall, a rear wall, a lower front wall, and multiple horizontal drawer slideways located above said front wall, drawers slideably mounted in said slideways, each of said drawers having a bottom wall, front wall, side wall and a rear wall, partition panels located between the bottom of each drawer and the top of the next adjacent drawer, said partition panels terminating at the rear substantially short of the rear wall of said cabinet, oxidizer panels mounted within the file, said oxidizer panels being operable upon ignition to oxidize and destroy the contents of the drawers of the file, said drawers being substantially shorter from said front wall of said drawer to said rear wall of said drawer than the distance from said front wall of said cabinet to said rear wall of said cabinet so that there is a substantial open area behind each drawer when it is closed, a flue at the rear of the file located between the rear of the drawers and the rear wall of the cabinet, said flue extending for approximately the full height of the cabinet and being open at the bottom and closed at the top to permit the egress of oxidation products during oxidation and destruction of the contents of the file.
Claim 2
Dependent Claim
226 words
A multiple drawer security file comprising a cabinet having side walls, a top and a bottom wall, a rear wall, a lower front wall, and multiple horizontal drawer slideways located above said front wall, drawers slideably mounted in said slideways, each of said drawers having a bottom wall, front wall, side wall and a rear wall, partition panels located between the bottom of each drawer and the top of the next adjacent drawer, said partition panels terminating at the rear substantially short of the rear wall of said cabinet, oxidizer panels mounted within the file, said oxidizer panels being operable upon ignition to oxidize and destroy the contents of the drawers of the file, said drawers being substantially shorter from said front wall of said drawer to said rear wall of said drawer than the distance from said front wall of said cabinet to said rear wall of said cabinet so that there is a substantial open area behind each drawer when it is closed, a flue at the rear of the file located between the rear of the drawers and the rear wall of the cabinet, said flue extending for approximately the full height of the cabinet and being open at the bottom and closed at the top to permit the egress of oxidation products during oxidation and destruction of the contents of the file.
Claim 3
Dependent Claim
37 words
The security file of claim 1 in which said flue extends beneath the lowermost drawer in the file and in which there is an opening in said lower front wall of the cabinet open to said flue.
Claim 4
Dependent Claim
38 words
The security file of claim 2 in which that portion of the flue which extends beneath the lowermost drawer includes a liquid containing chamber for cooling oxidation products before they pass out of said lower front wall opening.
Claim 5
Dependent Claim
30 words
The security file of claim 3 which further includes means for forcing all oxidation products through liquid contained in said chamber before said products may escape through said front opening.
Claim 6
Dependent Claim
56 words
The file of claim 3 which further includes at least one liquid storage container in said chamber, at least a portion of said container being meltable at a temperature below the temperature generated by said oxidizer panels so that the liquid stored in said container is releaseD into said chamber upon ignition of said oxidizer panels.
Claim 7
Dependent Claim
30 words
The security file of claim 5 which further includes means for forcing all oxidation products through liquid released from said container before said products may escape through said front opening.
Claim 8
Dependent Claim
55 words
The file of claim 1 which further includes an electrical device for igniting said oxidation panels, said electrical ignition device including a control circuit for controlling actuation of said device, said control circuit including interlock means operable to insure that each drawer is closed before said device may be actuated to ignite said oxidation panels.
Claim 9
Dependent Claim
30 words
The file of claim 7 in which said interlock means includes a switch connected to the lock of the file, which switch is closed only when the file is locked.
Claim 10
Dependent Claim
156 words
A multiple drawer security file comprising a cabinet having side walls, a top and a bottom wall, a rear wall, a front wall, and multiple horizontal drawer slideways located above said front wall, drawers slideably mounted in said slideways, each of said drawers having a bottom wall, front wall, side wall and a rear wall, oxidizer panels mounted within the file, said oxidizer panels being operable upon ignition to oxidize and destroy the contents of the drawers of the file, a flue at the rear of the file located between the rear of the drawers and at least a portion of the rear wall of the cabinet, said flue extending for approximately the full height of the cabinet, said flue having an opening in said cabinet near the bottom thereof communicating with said flue, said cabinet opening being operable to permit the egress of oxidation products during oxidation and destruction of the contents of the file.
Claim 11
Dependent Claim
156 words
A multiple drawer security file comprising a cabinet having side walls, a top and a bottom wall, a rear wall, a front wall, and multiple horizontal drawer slideways located above said front wall, drawers slideably mounted in said slideways, each of said drawers having a bottom wall, front wall, side wall and a rear wall, oxidizer panels mounted within the file, said oxidizer panels being operable upon ignition to oxidize and destroy the contents of the drawers of the file, a flue at the rear of the file located between the rear of the drawers and at least a portion of the rear wall of the cabinet, said flue extending for approximately the full height of the cabinet, said flue having an opening in said cabinet near the bottom thereof communicating with said flue, said cabinet opening being operable to permit the egress of oxidation products during oxidation and destruction of the contents of the file.
Claim 12
Dependent Claim
31 words
The security file of claim 9 in which said flue extends beneath the lowermost drawer in the file and in which said cabinet opening is located in the cabinet front wall.
Claim 13
Dependent Claim
25 words
The security file of claim 9 which further includes a liquid containing chamber for cooling oxidation products before they pass out of said cabinet opening.
Claim 14
Dependent Claim
30 words
The security file of claim 11 which further includes means for forcing all oxidation products through liquid contained in said chamber before said products may escape through said front opening.
Claim 15
Dependent Claim
56 words
The file of claim 11 which further includes at least one liquid storage container in said chamber, at least a portion of said container being meltable at a temperature below the temperature generated by said oxidizer panels so that the liquid stored in said container is released into said chamber upon ignition of said oxidizer panels.
Claim 16
Dependent Claim
30 words
The security file of claim 13 which further includes means for forcing all oxidation products through liquid released from said container before said products may escape through said cabinet opening.
Claim 17
Dependent Claim
55 words
The file of claim 9 which further includes an electrical device for igniting said oxidation panels, said electrical ignition device including a control circuit for controlling actuation of said device, said control circuit including interlock means operable to insure that each drawer is closed before said device may be actuated to ignite said oxidation panels.
Claim 18
Dependent Claim
30 words
The file of claim 15 in which said interlock means includes a switch connected to the lock of the file, which switch is closed only when the file is locked.
Claim 19
Dependent Claim
149 words
A security file comprising a cabinet having side walls, a top and a bottom wall, a rear wall and a front wall, movable access means defining at least a portion of the front wall and operable when moved to an open position to permit access to materials stored in the file, a document storage area located in the file, oxidizer panels mounted within the file, said oxidizer panels being operable upon ignition to oxidize and destroy the contents of the file, a flue located between the document storage area and at least a portion of one wall of the cabinet, said flue extending for approximately the full height of the cabinet, an opening in said cabinet near the bottom of the file and communicating with said flue, said cabinet opening being operable to permit the egress of oxidation products during oxidation and destruction of the contents of the file.
Claim 20
Dependent Claim
149 words
A security file comprising a cabinet having side walls, a top and a bottom wall, a rear wall and a front wall, movable access means defining at least a portion of the front wall and operable when moved to an open position to permit access to materials stored in the file, a document storage area located in the file, oxidizer panels mounted within the file, said oxidizer panels being operable upon ignition to oxidize and destroy the contents of the file, a flue located between the document storage area and at least a portion of one wall of the cabinet, said flue extending for approximately the full height of the cabinet, an opening in said cabinet near the bottom of the file and communicating with said flue, said cabinet opening being operable to permit the egress of oxidation products during oxidation and destruction of the contents of the file.
Claim 21
Dependent Claim
32 words
The security file of claim 17 in which said flue extends beneath the document storage area in the file and in which said cabinet opening is located in the cabinet front wall.
Claim 22
Dependent Claim
25 words
The security file of claim 17 which further includes a liquid containing chamber for cooling oxidation products before they pass out of said cabinet opening.
Claim 23
Dependent Claim
30 words
The security file of claim 17 which further includes means for forcing all oxidation products through liquid contained in said chamber before said products may escape through said front opening.
Claim 24
Dependent Claim
56 words
The file of claim 17 which further includes at least one liquid storage container in said chamber, at least a portion of said container being meltable at a temperature below the temperature generated by said oxidizer panels so that the liquid stored in said container is released into said chamber upon ignition of said oxidizer panels.
Claim 25
Dependent Claim
55 words
The file of claim 17 which further includes an electrical device for igniting said oxidation panels, said electrical ignition device including a control circuit for controlling actuation of said device, said control circuit including interlock means operable to insure that each drawer is closed before said device may be actuated to ignite said oxidation panels.
Claim 26
Dependent Claim
30 words
The file of claim 21 in which said interlock means includes a switch connected to the lock of the file, which switch is closed only when the file is locked.
Claim 27
Dependent Claim
37 words
The security file of claim 17 in which the flue is defined between the storage area and at least one side wall of the cabinet and in which said oxidizing panels are mounted above the storage area.
Claim 28
Dependent Claim
33 words
The security file of claim 17 in which the document storage area is defined by drawers slideable in said cabinet and in which said oxidizer panels are mounted above each of said drawers.
Claim 29
Dependent Claim
22 words
The security file of claim 25 in which the access means is a door hingedly mounted on the front of the file.
Claim 30
Dependent Claim
25 words
The security file of claim 26 which further includes a liquid containing chamber for cooling oxidation products before they pass out of said cabinet opening.
Claim 31
Dependent Claim
30 words
The security file of claim 26 which further includes means for forcing all oxidation products through liquid contained in said chamber before said products may escape through said front opening.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |