Cutlery – Cutting tools – Plural cooperating blades
Patent
1975-04-02
1976-06-01
Smith, Al Lawrence
Cutlery
Cutting tools
Plural cooperating blades
30223, B26B 1902, B26B 1906
Patent
active
039598780
ABSTRACT:
This invention teaches a convertible portable electric tool having a common power housing and different operating tool output pieces which can be releasably secured to said power housing without the need of any tools. Each of the tool output pieces has a stationary element and a movable element supported by the stationary element. The power housing has an exposed drive element which can cooperate with and drive the movable element when the statonary element is properly positioned relative to the housing. The stationary element in turn is sized to cooperate with the housing to cover the exposed drive element and be accurately positioned and held in place against the housing. Flexible fingers cantilevered integrally from the housing have free end flexture parallel to the stationary element, and further have projections on the finger ends that interlock with the positioned stationary element to hold it operatively in place relative to the housing. Exposed grip areas on the flexible fingers allow for manually flexing of the fingers to lock and release the tool output piece.
REFERENCES:
patent: 1357031 (1920-10-01), Daugherty
patent: 3172200 (1965-03-01), Ream
patent: 3321831 (1967-05-01), Harr
patent: 3365796 (1968-01-01), Tolmie
patent: 3851388 (1974-12-01), Weber
patent: 3854203 (1974-12-01), Paule
Dorheim David W.
Irelan Edward A.
Robotham William Frederick
Lind Charles F.
McGraw-Edison Company
Peters J. C.
Smith Al Lawrence
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