William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7297186 | Tethered, inflatable holder for flowable material A flexible bag for receiving flowable material is suspended, as from a gantry, and is tethered transversely and yet has substantially free movement along three sides for complete filling. The length of the tethers may be selected to prevent complete collapse of the ... | 11/20/2007 |
| 7203979 | Decontamination gate apparatus An improved combination security and decontamination gate to be used at various venues and areas which entertain large numbers of people. The gates may be set up at entrance and exit areas of the venue or area for security purposes, as well as to facilitate quick an... | 04/17/2007 |
| 7082627 | Emergency shower system An emergency shower system for attachment to a water pipe located behind a wall and a valve mounted to the pipe. The system includes a frame mounted to the wall around the valve, a panel connected to the frame for covering an opening in the wall to expose the valve,... | 08/01/2006 |
| 6918897 | SPF vending machine and method An automatic sunscreen application vending apparatus which accepts payment from a user, stores a plurality of grades of sunscreen lotion, allows the user to select a grade of suntan lotion such as by SPF factor, and sprays the user with the selected grade of stored ... | 07/19/2005 |
| 6745414 | Portable shower station A portable and rapidly deployable shower station is provided particularly for emergency wash-down use, such as flush-flow decontamination of a person exposed to hazardous materials such as hazardous chemical agents or the like. The shower station includes a pluralit... | 06/08/2004 |
| 6470512 | Optimized shower arrangement for high volume use A shower arrangement for a passenger aircraft includes a single shower cabin and at least two dressing cabins associated with the shower cabin. A door arrangement selectively opens and closes access areas passing from the dressing cabins into the shower c... | 10/29/2002 |
| 6446277 | High-capacity method and system of chemical and/or radiological decontamination A high-capacity chemical and/or radiological decontamination system including: a shower unit (1) designed to shower persons individually with a regeneratable active product for a predetermined time ranging between 5 and 20 seconds; a collecting device (14... | 09/10/2002 |
| 5768721 | Emergency shower An emergency shower apparatus comprising a deluge shower positioned in the vicinity of a wall, a removable access panel, a valve located behind the access panel having an open position and a closed position, and a shower control lever movable between an o... | 06/23/1998 |
| 5551102 | Mobile decontamination and containment unit There is provided a mobile decontamination unit which includes a shower compartment. The shower compartment has a shower head and a drain located therein. There is a means for providing water to the shower head. There is a storage tank connected to the dr... | 09/03/1996 |
| 5469587 | Portable emergency decontamination shower A portable shower comprises an upper polygon section, a base polygon section, a plurality of hollow supporting posts, and an inlet manifold. Each of the polygon sections includes a plurality of rigid hollow joints connected by flexible hoses. Each of the ... | 11/28/1995 |
| 5375275 | Portable shower and catch basin assembly for chemical decontamination A portable shower and catch basin assembly for use in performing chemical decontamination procedures has a catch basin made of a highly effective chemical barrier fabric and a support framework of plastic tubing parts that may be erected quickly on site. ... | 12/27/1994 |
| 5216763 | Portable shower apparatus A multipurpose, collapsible, shower apparatus for use almost anywhere but especially adapted for use in places somewhat remote from civilization such as recreational vehicles, campers, the outdoors, space vehicles and the like where there may be a limited... | 06/08/1993 |
| 4847928 | Motor vehicles equipped for decontamination purposes A motor vehicle for the decontamination of terrain and equipment and of personnel with at least one chemical dispersing device and spraying devices on the vehicle is provided having a module box placed on the vehicle frame in which the means for terrain a... | 07/18/1989 |
| 4800597 | Decontamination shelter A decontamination shelter with compartments arranged in adjacency with traversal enclosures therebetween defined by the walls of the adjacent compartments and openings in the adjacent walls provided with closures which, when closed, provide isolation corr... | 01/31/1989 |
| 4777675 | Decontamination chamber A portable knockdown decontamination chamber is disclosed for use with a liquid decontaminant supply to apply a confined liquid decontaminant wash to a subject located in the chamber. A base of the chamber includes an upwardly opening channel formed gener... | 10/18/1988 |
| 4675923 | Portable decontamination unit A portable decontamination unit comprising: at least two pans each of which includes a bottom and side walls extending upwardly therefrom, the pans being positionable side by side so that one of the side walls of each pan lies adjacent to one of the side ... | 06/30/1987 |
| 4348777 | Portable shower This disclosure relates to a portable shower particularly adapted for use at construction sites, campgrounds, industrial plants, truck and auto service stations and the like in which persons can conveniently and efficiently shower, the module including fi... | 09/14/1982 |
| 3955328 | Modular building system The modular building system of this invention relates generally, but not exclusively, to habitations. The system comprises at least two individual room or space modules which are individually secured to their foundations and at least one additional indivi... | 05/11/1976 |