Automatic double folding hand fans

Details Automatic double folding hand fans Automatic double folding hand fans

2007-11-27

2007-11-27

Look, Edward K. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Operator supported manually actuated type

Operation solely by direct hand manipulation

C416S07000R

Reexamination Certificate

active

11511829

ABSTRACT:
Methods to make various types of automatically opening hand fans. One embodiment is an automatic double folding hand fan having a first guard and a second guard and spring mechanisms to open the fan.

REFERENCES:
patent: 137413 (1873-04-01), Brueck
patent: 278799 (1883-06-01), Kinn
patent: 323811 (1885-08-01), Hoefle
patent: 509835 (1893-11-01), Baer
patent: 519554 (1894-05-01), Rubin
patent: 523762 (1894-07-01), Cwerdinski

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