发明名称 Snow removal device for roofs, flat surfaces and the like
摘要 A snow removal system that has a primary cutter assembly and a series of specialized attachments. The cutter assembly is formed from a length of aluminum bent to form a single horizontal cutting bar with two vertical cutting wings. The cutter bar has a tailpiece formed from a length of stiff but flexible plastic attached to the back edge. An elevated center bar serves as the thrust point and fixture for several of the attachments. The attachments to the cutter assembly include: a toggling plate; extensions to the vertical side bars that can be forward, vertical or trailing; a starting aid and depth setter; an edge limiting aid; a broom, set to the proper angle for a given application; an extension to the plastic tailpiece; and a bottom protector plate. Thrust or pull for the cutter assembly is achieved by the use of several special push-pull tubes. A simple elastic cord is used to secure the plastic tailpiece to the cutter assembly for storage.
申请公布号 US6158791(A) 申请公布日期 2000.12.12
申请号 US20000479272 申请日期 2000.01.04
申请人 DREW, STEPHEN C. 发明人 DREW, STEPHEN C.
分类号 E04D13/10;(IPC1-7):E01H5/02 主分类号 E04D13/10
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