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US 5,181,611 AGranted
Corner post having laminated paperboard spine
OwnerHenry L. Liebelinventor
Life of this patent
Estimating the term…
Abstract
An improved corner post including a right angle paper member having a pair of right angle legs joined at an apex and a hard, dense right angle paper spine adhered to the apex of the paper member and including an adhesive such as a hot melt extending along the apex between the spine and the apex.
Claims6
An integral, elongated corner post for cushioning and protecting an edge of an article comprising, in combination:
- a paperboard member formed into an elongated rigid right angle and having a pair of legs joined at an apex, said member having an inside surface and an outside surface,
- a paperboard spine formed into an elongated rigid right angle and secured to the outside surface of said paperboard member at said apex,
- said spine comprising a pair of legs and having an inside surface and an outside surface, said legs of said spine being folded inwardly upon and laminated to themselves to define a portion of increased thickness, the inside surface of said portion of increased thickness being laminated to the outside surface of said paperboard member,
- the remainder of the inside surface of said spine being laterally offset from the outside surface of said paperboard member defining a void therebetween, and
- an adhesive within the void at said apex of said paperboard member.
2 more elements
A stacked array of integral, elongated corner posts for cushioning and protecting the edges of articles comprising, in combination:
- a plurality of paperboard members, each formed into an elongated rigid right angle and having a pair of legs joined at an apex, each said member having an inside surface and an outside surface,
- a paperboard spine formed into an elongated rigid right angle and secured to the outside surface of each said paperboard member at said apex,
- said spine comprising a pair of legs and having an inside surface and an outside surface, said legs of said spine being folded inwardly upon and laminated to themselves to define a portion of increased thickness, the inside surface of said portion of increased thickness of said spine being laminated to the outside surface of said paperboard member,
- the remainder of the inside surface of said spine being laterally offset from the outside surface of said paperboard member defining a void therebetween,
- an adhesive within the void at the apex of said paperboard member,
- each said paperboard member having a contact adhesive on the inside surface of their respective legs, outboard of the legs of said spine,
- each said spine spacing the legs of adjacent paperboard members one from another to prevent contact of the adhesive on one paperboard member from an adjacent paperboard member in said stacked array.
4 more elements
Dependencies are inferred from the claim text.