Title: Rotary mower blade arrester apparatus

Abstract: Apparatus for rapidly braking the rotary blade of a rotary mower driven by an internal combustion engine. The internal combustion engine has a plurality of passages which lead to its combustion chamber for provision of a fuel-air mixture for combustion in the chamber and for exit of exhaust gases from the chamber. The apparatus includes a valve located in one of these passages which effectively blocks the passage when manually operated means for actuating the valve are operated. In one embodiment, a release of a dead man handle used in conjunction with the mower causes actuation of the valve by means of a bowden wire linkage connected between the dead man handle and the braking valve. The apparatus may also include a switch operated simultaneously with the braking valve to provide an ignition spark arresting function.

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Inventors: Comer, Robert C. (Hopkins, MN, US)

Application Number: 463960
Filing Date: 1974-04-25
Publication_date: 1976-05-11
Assignee: The Toro Company (Minneapolis, MN)
Primary Class(es): 188/273 56/10.5
Other Classes:
US Patent Ref:

1501363	Jul, 1924	Noble	188/273.
1519213	Dec, 1924	Moore	188/273.
1577466	Mar, 1926	Hyre	188/273.
2074651	Mar, 1937	Hoffman et al.	188/273.
2736153	Feb, 1956	Dunn	56/10.
3229452	Jan, 1966	Hasenbank	56/10.
3557762	Jan, 1971	Mitchell	123/108.
3788288	Jan, 1974	Harrison et al.	123/110.

Other Refs: 1,079,449592,560

May, 1954	FR
Sep, 1947	UK

Primary Examiner: Shapiro, Paul E.
Assistant Examiner:
Attorney: Merchant, Gould, Smith, Edell Welter & Schmidt