United States Patent 3722152

A portable jail cell which can be transported as a unit and installed in a jail or designated building. A windowless structure which has a foraminous metal screen door for light and air, is of ribbed sheet metal panels except for the floor. The floor is of cast concrete provided with channels on which to set and weld a unit cell. Sheet metal bunks which are welded inside the cell create a solid one piece unit. At one corner is an angled wall portion connecting contiguous side walls, and on the inner side of which are the toilet and wash bowl and on the outer side are suitable plumbing fixtures. This enables two cells to be placed side by side with adjacent angled wall portions to provide convenient access chambers and dispose the plumbing for the two cells in conveniently accessible location. The sheet metal for the wall panels is not less than one-eighth inch in thickness to militate against manual cutting.

Schlatter, Benjamin G. (Toledo, OH)
Spate, Sydney (Toledo, OH)
Application Number:
Publication Date:
Filing Date:
Art Inon, Inc. (Toledo, OH)
Primary Class:
Other Classes:
4/DIG.15, 52/35, 52/106
International Classes:
E04H3/08; E04H3/12; (IPC1-7): E04H3/08
Field of Search:
View Patent Images:
US Patent References:
2952922Apparatus for vacuum-drying temper-ature-sensitive goods1960-09-20Wenzel
2746789Corrugated sheathing spot-welded to frame members, especially for vehicle bodies1956-05-22Ridgway
2742114Prefabricated steel building1956-04-17Behlen
2248805Prison building1941-07-08Cocken
1611261Sanitary ventilating and plumbing system1926-12-21Youngblood
1172095N/A1916-02-15Worth et al.

Foreign References:
Primary Examiner:
Murtagh, John E.
What we claim is

1. A prisoner detention cell adapted to be transported as a modular unit to the place of use comprising


Many jails are old and inadequate, but to modernize them or replace them is so costly that nothing can be done in most instances. However, there is a great need for places where arrested individuals can be detained without excessive crowding and under sanitary conditions. Not infrequently a sizeable number of persons is arrested at one time, and jail capacity is not adequate and this presents a difficult problem. Therefore, the unit cell serves as a minimum security cell which can hold safely many more at much less cost than the customary maximum security cells.


A portable jail cell is provided which, by the use of suitable handling equipment, can be delivered and installed without great expense in any area where a crane can unload and set them in place. The portable cell is of rugged construction, having sheet metal side walls and ceiling which are ribbed to provide adequate strength for portability as well as to resist effectively manual attempts to cut escape holes. The cell is designed so that it can be placed with others in a row and the plumbing and fixtures are so arranged that both water and waste pipes can be provided in one access chamber for two adjacent cells, enabling servicing in a convenient manner without entering the cell structure.


FIG. 1 is a top perspective view of the detention cell, a portion of the ceiling being broken away to show the interior, and, by broken lines, showing an adjacent cell; and

FIG. 2 is a fragmentary sectional view taken substantially on the line 2--2 of FIG. 1.


The illustrated embodiment of the invention comprises a portable prisoner detention cell which constitutes in effect a unitary structure provided with ribbed sheet metal side walls 10 and an end wall 11 and a foraminous front wall 12 of metal screen affording light and air to the interior. The floor 13 is of a reinforced concrete slab with anchorage channels and the ceiling 14 is likewise of ribbed sheet metal. The joints between the sheet metal parts are welded seams.

The ribbing for the several walls is in the form of open V-shaped channels spaced about 2 feet from each other and arranged in parallel relation. The thickness of the sheet metal is of the order of one-eighth inch and this has been found empirically to be such that it cannot be manually cut through.

The screened front wall 12 is provided with a hinged door 16 to afford ingress and egress with respect to the cell. In the floor 13 is a conveniently arranged drain 17 so that the inside of the cell can be cleaned by hosing and the drain can be conveniently connected to existing soil pipes. A suitable number of sheet metal bunks 18 are welded and braced, several arranged superposed.

At one end of the cell, preferably at the front, is a flat corner wall 19 formed by leaving one side wall 10 and the front wall 12 somewhat short and angling these ends by the wall 19. On the inside of the wall 19 are disposed the toilet and wash bowl fixtures, indicated at 20, and the water and soil pipes 21 extend through this wall to the outside. By arranging two cells side by side, as indicated on FIG. 1, a V-shaped chamber C is provided which affords ready access to the soil and drain pipes 21 for both cells. The chamber C is closed by a wall 22 suitably welded in place and even with the adjacent walls 12. In the wall 22 is an access door 23. This places the water and soil pipes where they can be serviced conveniently without entering the cell.

It will be understood that the cell is a self contained unit which can be fabricated in one location and then picked up and transported to the desired location. It is of a size for example that it can be lifted by suitable equipment and placed on a flat car or truck. The walls are of sheet metal, strengthened by ribbing and are thus sufficiently sturdy to withstand stresses occasioned by such handling. In use, the positioning of the plumbing fixtures is of importance because of accessibility for installing and servicing, and the chamber formed by adjacent cells also has accoustical value by preventing noises to be transmitted from one cell to another.