Pumps – Motor driven – Resiliently mounted pump or motor
Patent
1989-04-19
1991-07-30
Smith, Leonard E.
Pumps
Motor driven
Resiliently mounted pump or motor
417364, 4174236, 4174237, 41742314, 15344, 15405, 15412, F04B 1700, A47L 524
Patent
active
050355864
ABSTRACT:
A portable, hand-held blower/vacuum unit has a housing structure defined by an upper engine shroud removably connected to the top wall of a lower impeller housing. Disposed within the shroud is a small internal combustion engine having a vertical crankshaft which extends downwardly through a depending well section formed on the top wall of the impeller housing, the lower shaft end being drivingly connected to a centrifugal fan impeller positioned within the impeller housing and operative to force a flow of ambient air therethrough. The engine is resiliently and floatingly mounted within the shroud by a resilient support system which prevents rigid contact between the engine and the shroud or the impeller housing to thereby substantially reduce engine vibration transmitted to the housing structure, and permit deflection of the engine relative to the housing structure to lessen the possiblity of engine damage caused by impeller impact from ingested objects. The engine's carburetor is disposed within a shroud wall section that defines with a fan housing portion of the engine a double-walled thermal barrier disposed between the carburetor and the engine's muffler. A resilient air filter element is interconnected between the shroud and the carburetor air inlet and flexes in response to engine deflection to thereby absorb and damp engine vibration which might otherwise be transmitted to the housing structure through the carburetor.
REFERENCES:
patent: 2538954 (1951-01-01), Ebromson et al.
patent: 2875466 (1955-06-01), Nyberg
patent: 2894489 (1959-07-01), Clay
patent: 3139152 (1964-06-01), Bajer
patent: 3224473 (1965-12-01), Dobbertin et al.
patent: 3372718 (1968-03-01), Irgens
patent: 3530909 (1970-09-01), Scharpf
patent: 3637029 (1972-01-01), Sherwood, Jr. et al.
patent: 3680608 (1972-08-01), Emmerich et al.
patent: 4135301 (1979-01-01), Hoeppner
patent: 4198752 (1980-04-01), Bross
patent: 4641055 (1984-07-01), Zerker et al.
patent: 4644606 (1987-02-01), Luerken et al.
patent: 4674146 (1987-06-01), Tuggle et al.
patent: 4746274 (1988-05-01), Kiyooka et al.
patent: 4824333 (1989-04-01), Erickson, Jr.
patent: 4884314 (1989-12-01), Miner et al.
Collins Imack L.
Sadler Jeffery G.
Tuggle Lloyd H.
Savio, III John A.
Smith Leonard E.
White Consolidated Industries, Inc.
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