Cutlery – Perforating or indenting implements – Pointed
Patent
1991-10-25
1992-09-08
Phan, Hien H.
Cutlery
Perforating or indenting implements
Pointed
30368, 83520, 283 73, 283100, 283104, 283105, B26F 100
Patent
active
051447509
ABSTRACT:
A listing apparatus, comprising, in its broadest aspects, a transparent plastic coverplate, a rigid backplate, and a spring punch assembly. The rigid, transparent, plastic coverplate includes a coverplate slot system comprising a plurality of interconnected coverplate listing slots being connected by at least one coverplate connecting slot. The rigid backplate has a plurality of backplate slots disposed therein, the rigid backplate being securely disposed in a spaced relationship with the clear plastic coverplate. The backplate slots are aligned with the coverplate listing slots. The spring punch assembly, which includes a punch rod, is located within the coverplate slot system and slidable therethrough. Connectors provide the spaced relationship between the clear plastic cover and the rigid backplate so as to accommodate a list to be inserted therebetween. Therefore, an operator may insert the list between the rigid backplate and the plastic coverplate, view the list through the plastic coverplate, and selectively indicate items listed on the list, by punching holes in the list.
REFERENCES:
patent: 2726721 (1955-12-01), Segal
patent: 2868293 (1959-01-01), Kearse
patent: 4020554 (1977-05-01), Latourette
patent: 4823468 (1989-04-01), Kollegger
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