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
Fibrous laminate interface for security coatings
Data communication apparatus, method of controlling the same, program, and storage medium
Wireless communication power control
Assay for the diagnosis of flaviviral infection using antibodies with high affinity for NS1 protein of flavivirusi in hexameric form
Selecting content for storage in a multi-device cache
Medical device arm
Management of memory array with magnetic random access memory (MRAM)
  Randomly Featured Patents
Outlet for connecting a vacuum-cleaning hose to a centralized vacuum-cleaning installation
Leadframe based magnetics package
Filtration unit with pleated filter element
Servers for web enabled speech recognition
Preparation of lower trialkyltin hydride from trialkyltin chloride
HDPCVD process and method for improving uniformity of film thickness
Remote signalling apparatus, particularly suitable for remote surveillance purposes
Method for transferring a tunnel between nodes in GPRS system
Pleat counter apparatus
Adjustable stretching machine