Safety letter opener

Details Safety letter opener Safety letter opener

1988-06-20

1989-10-17

Yost, Frank T.

Cutlery

Cutting tools

With material receiving opening

30289, B26B 300

Patent

active

048737674

ABSTRACT:
An implement is provided for opening envelopes in which a ram is reciprocally mounted within a hollow sleeve. A transverse envelope receiving crevice or slot is defined at one end of the sleeve and the ram carries a blade which has a cutting edge directed toward the envelope receiving slot. A spring acts between the sleeve and the ram to urge the cutting edge of the blade away from the transverse slot so that the blade is not exposed unless the spring bias is overcome.

REFERENCES:
patent: 2247840 (1941-07-01), Harrison
patent: 2266863 (1941-12-01), Hatch
patent: 2282062 (1942-05-01), Jewett
patent: 2411927 (1946-12-01), Luke
patent: 2672933 (1954-09-01), Bridy
patent: 2679098 (1954-05-01), Deicken
patent: 2679100 (1954-05-01), Ehler
patent: 2815572 (1957-10-01), Deicken
patent: 2882598 (1959-04-01), Fidelman
patent: 2978808 (1961-04-01), Reed
patent: 3137070 (1964-06-01), Geier et al.
patent: 3142119 (1964-07-01), O'Brien
patent: 3619902 (1971-11-01), Fleury

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