Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Blank structure with indented fold lines for a cardboard container










Image Number 3 for United States Patent #4586650.

A blank structure for liquid having horizontal and vertical fold lines, bordered by specifically designed indented fold lines, the depth of grooves of the fold lines are gradually decreased toward the crossings of the respective fold lines. Thus, cracks or pinholes at the corners of the folded blank due to the folding stress in case of forming a container can be completely prevented.








 
 
  Recently Added Patents
Apparatus, device and method for determining alignment errors
Actuating device and heating or air conditioning unit
Carbon grit
Non-chemical, non-optical edge bead removal process
Guitar cover
Locating a backscatter-based transponder
Insulating varnish and production method therefor and insulated electric wire using same and production method therefor
  Randomly Featured Patents
Score display apparatus for pinball game machines and display method therefor
Semiconductor integrated circuit device
Fluorescent lamp for use in explosive atmospheres such as mines
Paint applicator device
Fastener with illuminator
Gain control circuit
Closed loop control system and method of dynamically changing the loop bandwidth
Disc case
Inhibitors of aspartyl protease
Drug dosage unit for buccal administration of steroidal active agents