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US 4,392,911 AGranted
Apparatus for sealing cartons
AssigneeDurable Packaging Corporation
InventorsLawrence W. Ulrich, Connie W. Walker
Life of this patent
Estimating the term…
Abstract
An apparatus for sealing the foldable flaps of cartons. The apparatus includes an improved modular frame structure to support the sealing heads and the carton handling assemblies. The apparatus further includes an improved lift assembly to raise and lower the top sealing head assembly.
Claims38
Apparatus of the type used for sealing the foldable flaps of cartons;
- said apparatus including a frame structure, a sealing head assembly mounted to said frame structure, and at least one longitudinally extending side arm assembly mounted to said frame structure;
- said frame structure comprising:
- a pair of entrance leg members positioned in a common transverse vertical plane and a pair of exit leg members positioned in a common transverse vertical plane spaced from the plane of said entrance leg members, said entrance leg members and said exit leg members including a front leg member and a rear leg member;
- an entrance cross support member extending between the upper portions of said entrance leg members and an exit cross support member extending between the upper portions of said exit leg members, said entrance cross support member and said exit cross support member being formed with upwardly extending open channel portions;
- and means secured to said side arm assembly for slidable receipt within said channel portions of said entrance cross support member and said exit cross support member so as to permit selective transverse movement of said side arm assembly above said channel portions.
2 more elements
Apparatus of the type used for sealing the foldable flaps of cartons;
- said apparatus including a frame structure, a sealing head assembly mounted to said frame structure, at least one longitudinally extending side arm assembly mounted to said frame structure;
- and an improved lift assembly for mounting said sealing head assembly to said frame structure, comprising:
- a lift guide member secured to said frame assembly, said lift guide member formed from a tubular member having an open side in facing relationship to said frame assembly and a pair of longitudinally spaced end portions of generally triangular cross section;
- a lift channel member positioned within said lift guide member and movable vertically therein;
- a plurality of generally conically shaped roller members secured to said lift channel member for receipt within said end portions of said lift guide member;
- and connecting means for connecting said sealing head assembly to said lift channel member for support thereof over said frame assembly.
3 more elements
Apparatus of the type used for sealing the foldable flaps of cartons;
- said apparatus including a frame structure, a sealing head assembly mounted to said frame structure, and a longitudinally extending guide bar assembly attached to said frame structure;
- said frame structure comprising:
- a pair of entrance leg members positioned in a common transverse vertical plane and a pair of exit leg members positioned in a common transverse vertical plane spaced from the plane of said entrance leg members, said entrance leg members and said exit leg members including a front leg member and a rear leg member;
- an entrance cross support member extending between the upper portions of said entrance leg members and an exit cross support member extending between the upper portions of said exit leg members, said entrance cross support member and said exit cross support member being formed with upwardly extending open channel portions;
- and means secured to said guide bar assembly for slidable receipt within said channel portions of said entrance cross support member and said exit cross support member so as to permit selective transverse movement of said guide bar assembly above said channel portions.
2 more elements
Dependencies are inferred from the claim text.