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| Number | Title | Issue Date |
| 5984995 | Heat cells This invention relates to a method of manufacturing heat cells which are based on a specific iron oxidation chemistry and having specific physical dimensions and fill characteristics. This method uses direct compaction of powdered ingredients into granule... | 11/16/1999 |
| 5454363 | High-temperature exothermic device Proposed is a compact high-temperature exothermic device by utilizing the heat of reaction of a reactive metal powder, e.g., titanium and zirconium, and a powder of boron and/or carbon mixed together in about the stoichiometric proportion forming a calori... | 10/03/1995 |
| 5230715 | Pyrogen and canister incorporating pyrogen The pyrogen of the invention is formed by the compression of ferrosilicon powder and a mixture of ferric oxide powder and another lower order iron oxide powder. This pyrogen overcomes the weaknesses inherent in earlier pyrogens by dispensing with the use ... | 07/27/1993 |
| 4894931 | Heating device A heating device incorporated in an article of clothing or a shoe, notably a ski boot, comprising a sealed enclosure (2) in contact with the area of the body to be heated, this enclosure containing a salt (5) which changes phase between solid and liquid a... | 01/23/1990 |
| 4708913 | Pyrophoric process and product Metals like iron and nickel are pyrophorically activated by continuous or batch treatment. Activated metal can be coated with material that increases, or tempers by partial blocking, pyrophoric action. Pyrophoric powder can be compacted with ignitable pow... | 11/24/1987 |
| 4696302 | Proctologic device A device for self-administered treatment of hemorrhoids and other rectal disorders generally comprises an outer vessel including a hollow, thin-walled, flexible elongated tubular body portion having an inner closed end and an outer closed end and dimensio... | 09/29/1987 |
| 4572158 | Trigger to activate aqueous salt solution for use in a heat pack and method of making the same A trigger to activate a supercoolable aqueous salt solution wherein the trigger and solution are encased within a flexible container. The trigger is a flexible relatively thin sheet of material wherein there are a plurality of activator cuts that extend t... | 02/25/1986 |
| 4255157 | Thermogenic compositions A thermogenic composition comprising (1) at least one of alkali metal sulphides, polysulphides and hydrates thereof, (2) at least one of carbonaceous materials, (3) at least one of powdered iron, magnesium, aluminum and powdered alloys of these metals and... | 03/10/1981 |
| 4205957 | Heating element A heating element for use in heater poultices or disposable pocket heaters, which contains oxidizable metallic powders, one of the noble metallic catalysts such as platinum palladium, etc. or a mixture thereof, and a porous catalyst carrier such as active... | 06/03/1980 |
| 4199548 | Thermally diffusible composites A thermally diffusible composite comprising a thermally diffusible medicine such as allethrin, a thermogenic composition including an alkali metal sulphide or the like, carbonaceous material or the like and, if desired, a filler such as cellulose. In one ... | 04/22/1980 |
| 4106478 | Packaged heat generator A packaged heat generator is used for warming or heating the human body, canned foods and similar objects. It consists of three bags: a first bag contains a composition of metallic powders; a second bag has a vent portion through which air is introduced, ... | 08/15/1978 |
| 4093424 | Thermogenic compositions A thermogenic composition comprising (1) at least one compound such as an alkali metal sulphide, polysulphide, hydrosulphide, hydrate thereof or mixture thereof, (2) at least one catalytically functional compound such as carbonaceous material or iron carb... | 06/06/1978 |
| 4013061 | Ignition system for chemical heaters A self-contained heating device useful for a variety of heating applications is disclosed. In a preferred form of the invention a hermetically-sealed cartridge containing a chemical mixture which produces heat, but substantially no gas, upon ignition is d... | 03/22/1977 |
| 3951127 | Constant temperature device A flexible container having a substantially planar configuration encloses a first chemical having characteristics for being supercooled to maintain a liquid state even at temperatures below its melting point. A second chemical can be mixed with the first ... | 04/20/1976 |
