US3839622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric, forced air towel warming cabinet
Assignee: Individual
•
Filing: 1972-12-26
•
Granted: 1974-10-01
•
Expires: 1992-12-26
Abstract
Abstract An electric forced-air towel warming cabinet is provided. The device consists of an insulated chamber having a main chamber with horizontal towel support racks which permit the unobstructed upward flow of heated air therethrough and a second chamber which surrounds the main chamber on the top, bottom and one side. Located in the lower portion of the second chamber are a pair of blowers which direct air past electric heating elements below the bottom of the main chamber and upward through a perforated plate into the main chamber. The heated air continues upward through the towel support racks and out through a second perforated plate at the top of the main chamber into the second chamber from whence it flows downward to the blowers to complete a closed loop. Thermostatic control means are provided on the lower perforated plate. The thermostatic control means comprises a high temperature thermostat and a low temperature thermostat arranged to selectively control the temperature in the cabinet by means of a selector switch.
Inventors
- 👤 K Mastin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:47
CPC Classifications
A; A47; A47K; A47K10/00; A47K10/04; A47K10/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
289 words
An apparatus for warming towels comprising an insulated, double-walled enclosure, means disposed therein defining a main chamber with plural towel open grid like support racks which permit the upward, unobstructed flow of heated air therethrough and a hinged door on said enclosure at the front of said main chamber for access thereto from the outside; means defining an air circulation duct within said insulated enclosure, said duct being coextensive with and surrounding the top, bottom and one side of said main chamber, the top and bottom of the main chamber being in air flow communication with said air circulation duct by upper and lower perforated plates which permit substantially uniform distribution of air through the main chamber, said air circulation duct further having operably disposed therein below the main chamber controlled means for supplying heated air upward through said lower perforated plate to the main chamber; said controlled means comprising an electric heating element disposed beneath said lower perforated plate and operably connected in a circuit with means for supplying electrical power thereto and thermostat means disposed on said perforated plate and operably connected in said circuit for controlling the temperature in the main chamber; said controlled means further comprising plural tangential blowers disposed below the main chamber and having their respective inlets communicating with the side portion of the air circulation duct and their respective air outlets communicating with the bottom portion of the air circulation duct for circulating air in a closed loop past said heating element upward through said lower perforated plate into the main chamber and then out through said lower perforated plate into the main chamber and then out through said upper perforated plate and back in a downward direction to said tangential blowers.
Claim 2
Independent Claim
289 words
An apparatus for warming towels comprising an insulated, double-walled enclosure, means disposed therein defining a main chamber with plural towel open grid like support racks which permit the upward, unobstructed flow of heated air therethrough and a hinged door on said enclosure at the front of said main chamber for access thereto from the outside; means defining an air circulation duct within said insulated enclosure, said duct being coextensive with and surrounding the top, bottom and one side of said main chamber, the top and bottom of the main chamber being in air flow communication with said air circulation duct by upper and lower perforated plates which permit substantially uniform distribution of air through the main chamber, said air circulation duct further having operably disposed therein below the main chamber controlled means for supplying heated air upward through said lower perforated plate to the main chamber; said controlled means comprising an electric heating element disposed beneath said lower perforated plate and operably connected in a circuit with means for supplying electrical power thereto and thermostat means disposed on said perforated plate and operably connected in said circuit for controlling the temperature in the main chamber; said controlled means further comprising plural tangential blowers disposed below the main chamber and having their respective inlets communicating with the side portion of the air circulation duct and their respective air outlets communicating with the bottom portion of the air circulation duct for circulating air in a closed loop past said heating element upward through said lower perforated plate into the main chamber and then out through said lower perforated plate into the main chamber and then out through said upper perforated plate and back in a downward direction to said tangential blowers.
Claim 3
Dependent Claim
20 words
The apparatus of claim 1 wherein each of said towel support racks comprises a series of spaced, horizontal, elongated members.
References Cited (Backward Citations)
US1218341A
Cited
US2248867A
Cited
US2568493A
Cited
US2214630A
Cited
US3044181A
Cited
CH378468A
Cited
US3221729A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |