Automobile door lock warmer

申请公布号：

US4822976(A)

申请号：

US19870089166

申请日期：

1987.08.25

申请公布日期：

1989.04.18

申请人：

BURANATHANIT, PINYAWAT

发明人：

BURANATHANIT, PINYAWAT

分类号：

E05B17/00;(IPC1-7):E05B17/00;F24H3/04;H05B3/00

主分类号：

E05B17/00

摘要：

An automobile door lock warming device has a housing which surrounds the door lock cylinder on a conventional automobile door lock. A heating element is contained in the housing and also an electrical fan. A switch is mounted on the exterior of the automobile. In use, the user activates the switch which turns on the heating element and the fan, thus blowing warm air through the housing and onto the door lock cylinder. In a second embodiment, the housing includes a helical rib which swirls the warmed air around the door lock cylinder and exhausts the air through a plurality of ports which are spaced circumferentially around the keyhole. A pivotable cover for the keyhole and exhaust ports is provided.