Structurally strong heat insulator for high transient temperatures
Patent 4147241 Issued on April 3, 1979. Estimated Expiration Date: 
October 27, 1997. 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.
October 27, 1997. 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 2801714 3010543 3269491 3376959 3502004 3900629 InventorsAssigneeApplicationNo. 05/846003 filed on 10/27/1977US Classes:188/264G, Insulators192/113.4, Thermal insulating428/594, Plural layers discontinuously bonded (e.g., spot-weld, mechanical fastener, etc.)428/613, Porous (e.g., foamed, spongy, cracked, etc.)428/920FIRE OR HEAT PROTECTION FEATUREExaminersPrimary: Halvosa, George E. A.Attorney, Agent or FirmInternational ClassesF16D 65/84 (20060101)F16D 55/40 (20060101) B64C 25/00 (20060101) B64C 25/44 (20060101) F16D 65/00 (20060101) F16D 55/24 (20060101) F16D 55/00 (20060101) AbstractA structurally strong heat insulator is depicted in the backing plate and pressure plate regions of an aircraft multiple disc brake assembly. The insulator is constructed from a plurality of perforated metal sheets in order to withstand the large compressive forces experienced during a brake application. The sheets are compiled randomly into an insulating stack which thereby offsets the holes in adjacent sheets. The holes decrease the surface area and the offset increases the heat conduction path, both which reduce the amount of heat cnducted through the stack. | |
