Apparatus for recovery of heat from exhaust gases of dryer
Patent 4028817 Issued on June 14, 1977. Estimated Expiration Date: 
June 14, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 14, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 167129 2818719 2882023 3066423 3232591 3859735 InventorAssigneeApplicationNo. 05/617747 filed on 09/29/1975US Classes:34/86, With waste gas heat and/or power conservers165/901HEAT SAVERSExaminersPrimary: Camby, John J.Assistant: Schwartz, Larry I. Attorney, Agent or FirmInternational ClassD06F 58/20 (20060101)AbstractApparatus and method for recovery of heat from exhaust gases of dryers and return of heat to the dryer system. Fresh air is drawn through a plurality of tubes in heat exchange relation to heated exhaust gases and introduced into the drying system without intermingling of contaminated exhaust gases with the heated fresh air. The apparatus and method have particular utility in gas-fired commercial and industrial laundry dryers. | |
