Null Spencer J.,Feldman Vladimir,Metcalf Douglas E.,Wood Robert W.,Wolf Randal M.
申请号：
US201514698391
公开号：
US9931971(B1)
申请日:
2015.04.28
申请国别(地区):
美国
年份:
2018
代理人:
Pizarro Allen PC
摘要：
A spreader assembly may include a hopper configured for receiving a spreadable material, a removable cartridge configured for sliding engagement with the hopper and having a material transportation mechanism configured for receiving the spreadable material from the hopper, and a spreader configured for receiving the spreadable material from the material transportation mechanism and spreading the spreadable material onto a target surface. One of the hopper and the cartridge may include a roller having a roller surface, and the other of the hopper and the cartridge may include a bearing surface configured for rolling engagement with the roller surface.
