Blower having a carrying frame

Details Blower having a carrying frame Blower having a carrying frame

2007-11-27

2007-11-27

Smith, Duane (Department: 1724)

Gas separation

Combined or convertible

C055S487000, C055S505000, C055S507000, C055S523000, C015S327500, C015S405000, C123S041490, C123S19800E, C180S068100, C180S084000, C034S082000, C034S097000, C392S385000

Reexamination Certificate

active

10711417

ABSTRACT:
A blower has a carrying frame provided with a base plate. A fan with a fan housing is mounted on the carrying frame. The fan housing has an intake opening that faces the base plate and is spaced from the base plate. An intake gap is formed between the base plate and the fan housing. An internal combustion engine drives the fan in order to take in working air through the intake opening and to blow out the working air through a blower tube. A leaf shield for preventing leaves and debris from entering the fan housing is provided and covers the intake gap. The leaf shield is made of a foam material having coarse pores to allow unimpaired intake of the working air and to prevent leaves or other debris from adhering to the leaf shield.

REFERENCES:
patent: 4758460 (1988-07-01), Spicer et al.
patent: 5133315 (1992-07-01), Reese
patent: 5167209 (1992-12-01), Dufern et al.
patent: 5490336 (1996-02-01), Smick et al.
patent: 6068675 (2000-05-01), Tsuda et al.
patent: 6361590 (2002-03-01), Gilbert et al.
patent: 2002/0174511 (2002-11-01), Iida et al.
patent: 2006/0080949 (2006-04-01), Moriyama et al.
patent: 2006/0169256 (2006-08-01), Lavender et al.

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