SAFETY HEATER FOR PRESSURE DISPENSED PRODUCT

• US 3,644,707 A
• Filed: 09/21/1970
• Issued: 02/22/1972
• Est. Priority Date: 09/21/1970
• Status: Expired due to Term

• Current Assignee: Christopher Hollet Costello
• Original Assignee: Christopher Hollet Costello
• Inventors: Costello, Christopher Hollet
• Primary Examiner(s): Bartis, A.
• Application Number:
  US05/074,112
• Time in Patent Office: 519 Days
• Field of Search: 219/296-299,301-309,214,280,325,326 239/133,135 222/146R,146H,146HA,146HE
• US Class Current: 392/341
• CPC Class Codes: F24H 1/00 Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters steam boilers F22B
• CPC Class Codes: H05B 3/00 Ohmic-resistance heating

Abstract

An attachment for heating shaving cream or the like material being dispensed from an aerosol-type container having a depressible hollow valve stem through which the material is discharged includes a casing of heat and electrical insulation material having a base at its lower end provided with a downwardly open bore adapted to fit upon the valve stem. A flow passage having highly heat conductive walls extends from the bore to a lateral opening in the casing. A confined body of heat storage material, such as water, alcohol, powdered metal or the like, is sealed within the casing in surrounding relation to the flow passage. The body of heat storage material is heated by an electrical resistance heating element arranged within the casing in surrounding relation thereto. The heating element has such a short connection to the usual electrical wall outlet that normally the connection must be broken to enable the user to conveniently dispense heated material.

Claims

1. A device for heating fluent material such as shaving cream during dispensing from an aerosol or like portable pressurized container having a projecting depressible hollow valve stem through which said material is discharged when the stem is depressed comprising a casing of heat and electrical insulation material having an apertured base in its lower end, said base being provided with a downwardly open bore adapted to fit upon said stem so as to support said device substantially wholly on said stem but permitting such relative movement between the device and container as may be required to depress the stem, means defining a flow passage through said device extending from said apertured base to a lateral outlet, said passage having a highly heat conductive wall, means defining a confined body of heat storage material sealed within said casing in surrounding relation to said passage wall and entirely enclosed by said insulation material, electrical resistance heating means within said casing surrounding said body, and conductor means connected to said resistance means and extending externally of the casing to provide a fitting adapted for detachable connection to an electrical outlet.

2. The device defined in claim 1, wherein said conductor means is so relatively short externally of the device that after the passage has been heated the conductor means must be detached from the outlet for convenient use of the assembled container and device in producing warmed shaving cream during shaving.

3. The device defined in claim 2, wherein said conductor means comprises a short flexible cord extending from said device and terminating in a pronged plug.

4. The device defined in claim 2, wherein said conductor means comprises fixed prongs extending from said insulating casing.

5. The device defined in claim 1, wherein said body of heat storage material is a liquid enclosed in a metal casing within said insulating casing, and said passage comprises a thin-walled metal tube extending a material distance through said liquid between said base and lateral outlet.

6. A device for heating and dispensing fluent material as defined in claim 5, wherein said electrical resistance means is imbedded in the insulation material adjacent said metal casing, and the outer wall of said insulation material is a plastic shell, said base being rigid with said shell.

7. A device for heating and dispensing fluent material as defined in claim 5, wherein said electrical resistance heating means is a coil adjacently surrounding said metal casing and distributed therealong for substantially uniform heating thereof.