B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
93/60, 226/80
B65B 51/22 (2006.01) B29C 65/00 (2006.01) B29C 65/08 (2006.01) B65B 7/18 (2006.01)
Patent
CA 1078345
ABSTRACT OF THE DISCLOSURE Apparatus for forming a seal between layers of a carton of thermoplastic coated paperboard material and the like wherein the thermoplastic material in the area to be sealed serves as the sealant and is activated to flow by frictional heat generated by a vibration welding horn and is then allowed to cool and set under pressure to form the seal between the layers. The carton first moves to an activating station wherein the layers to be sealed are engaged on opposite surfaces by a vibrating horn and a back- up member (in the form of an anvil or a mandrel) for a time suf- ficient to activate the thermoplastic material to flow. The car- ton is then carried to a clamping and sealing station at a dif- ferent location from the activating station with the thermoplastic material in the activated state. The layers to be sealed with the activated thermoplastic is then engaged on opposite surfaces by a pressure pad and the back-up member for a predetermined period of time to permit the activated thermoplastic to cool and set and form a seal. A holding member extends between the activating and clamping and sealing stations. The holding member overlies the back-up member for engaging the outer surface of the layers to hold the layers together in cooperation with the back-up member when the carton is located at either of the stations or between the stations. The holding member is slotted to permit the horn and pressure pad to engage the outer surface of the layers while the layers are held in the closed position between the holding member and back-up member.
288314
Kauffman Ivan L.
Neumayer Jack M.
LandOfFree
Carton sealing method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Carton sealing method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carton sealing method and apparatus will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-57682