Asphalt spreading machine
Patent 4165192 Issued on August 21, 1979. Estimated Expiration Date: 
August 21, 1996. 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.
August 21, 1996. 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 2877476 3087188 InventorApplicationNo. 05/644976 filed on 12/29/1975US Classes:401/48, WITH MEANS SUPPORTING OR STABILIZING IMPLEMENT IN USE401/137INCLUDING MEANS FOR DISPENSING MATERIAL DIRECTLY TO WORK SURFACEExaminersPrimary: Pellegrino, Stephen C.Attorney, Agent or FirmInternational ClassesE01C 19/16 (20060101)E01C 19/00 (20060101) E04D 15/00 (20060101) E04D 15/07 (20060101) AbstractA machine for the pouring and spreading of hot asphalt in an even and uniform manner on roof tops, the asphalt spreading machine consisting of an insulated chamber for containing hot asphalt, a piping system with port holes for regulating the flow of hot asphalt from the container on to the roof top, a pit-cock valve and valve control handle for turning on or shutting off the flow of asphalt from the container, an air vent tube to permit draining of the hot asphalt from the system when the machine is turned off, a detachable handle for pulling the machine along the roof top, and a detachable rake and spreading screens for uniformly spreading the asphalt on the roof top, with the detachable features of the machine allowing for storage of the machine in small spaces and also facilitating lifting the machine to the top of a roof. | |
