Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Fabrication of box parts from plastic material










Image Number 12 for United States Patent #3977307.

Box parts such as box bottoms and box lids are fabricated from notched blanks of plastic sheet material.Relatively large boxes can be fabricated and the blank feed mechanism is actuated by a crank mechanism that runs at twice the speed of a main, one revolution per cycle drive shaft. An extension blank pusher can be added to produce smaller boxes. The tab folders have solvent applicators formed as grooved metal bars associated with a centralized solvent delivery and recovery system. The transverse folding dies are heated with a flexible, rope-like heating element to facilitate changes in die length. The feeding apparatus includes cam operated, vacuum cup lifter arm assemblies which lift the top blank from a stack and present it to vacuum cups on the feed pushers. These assemblies are longitudinally adjustable. The anvils that cooperate with the tab folders have heated bodies, but their clamp surfaces are insulated from the bodies.








 
 
  Recently Added Patents
Outdoor fireplace
Method of making chip-on-lead package
Vehicle seat reclining apparatus
Method for predicting organ toxicity and a system thereof
Method and apparatus for issuing rights in a digital rights management system
Sheet folder
Method of performing electrostatic discharge testing on a payment card
  Randomly Featured Patents
Angioplasty light guide catheter for the removal of stenoses using laser light energy
Atomizing and mixing apparatus
Vehicle occupant restraining belt arrangement
Inks, particularly for ink printing
System and method for secure cryptographic communications
Updating download options for unavailable media content
Method of obtaining mechanical energy utilizing H.sub.2 O plasma generated in multiple steps
Car washing bucket and organizer
Determination and control of bimolecular interactions
Method and apparatus for generating a display signal