Interlock for stackable boxes

Envelopes – wrappers – and paperboard boxes – Paperboard box – Plural

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

229195, 229915, B65D 532

Patent

active

055492410

ABSTRACT:
An interlock is disclosed for stackable lower and upper boxes. The lower box is provided with upstanding hook-shaped tabs extending upwardly from parallel walls and the upper box is provided with slots in the bottom which register with the tabs when the upper box is laterally offset from the lower box. After the tabs are inserted into the slots, the boxes are shifted laterally into alignment with each other and the hook-shaped tabs overlap the bottom of the upper box. Box blanks are disclosed for making the upper and lower boxes with the interlock tabs positioned so that the box blanks can be nested for saving material. A corner interlock is disclosed for latching the interlock tab in the locked position.

REFERENCES:
patent: 2634899 (1953-04-01), Meller
patent: 3006523 (1961-10-01), Keith
patent: 3537956 (1970-11-01), Falcone et al.
patent: 3623650 (1971-11-01), Watts
patent: 4245773 (1981-01-01), Stollberg
patent: 4298157 (1981-11-01), De Vierno
patent: 4944452 (1990-07-01), Kent et al.
patent: 4971242 (1990-11-01), LaNicca
patent: 4984734 (1991-01-01), Zion et al.
patent: 4993625 (1991-02-01), Stease et al.
patent: 5002224 (1991-03-01), Muise
patent: 5020717 (1991-06-01), Cassidy
patent: 5029714 (1991-07-01), Cassidy
patent: 5381949 (1995-01-01), Correll

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Interlock for stackable boxes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Interlock for stackable boxes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interlock for stackable boxes will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1050771

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.