Bonding apparatus for thermoplastic coated materials
Patent 4285758 Issued on August 25, 1981. Estimated Expiration Date: 
March 26, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 26, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3148104 3660206 3769125 3875368 Method and device for the tape-sealing of panels of paper, cardboard, plastic, or wood, and adhesive tape therefor Patent #: 4181558 InventorsAssigneeApplicationNo. 06/134098 filed on 03/26/1980US Classes:156/498, With work cooling means156/499, With separate (nonpress) heating means for work156/574, Work traversing type and/or means applying work to wall or static structure156/575, With liquid applying means156/576, Grip or clamp for web end156/578With liquid adhesive or adhesive activator applying meansExaminersPrimary: Weston, CalebAttorney, Agent or FirmInternational ClassesB31B 1/90 (20060101)B31B 1/74 (20060101) B29C 65/10 (20060101) B29C 65/12 (20060101) B29C 65/00 (20060101) B29C 65/18 (20060101) B29C 65/50 (20060101) B29C 65/20 (20060101) B05C 9/14 (20060101) B29C 35/16 (20060101) B29C 35/00 (20060101) AbstractA bonding apparatus for applying a thermoplastic-adhesive coated core material to a moving substrate as disclosed. Heat exchanger guide means directs a continuous length of hot melt strand to an output orifice at a bonding station. The hot melt adhesive is softened by the unique heat exchanger means to its flow point, just before the strand leaves the output orifice. A rapidly replaceable bonding shoe presses the hot melt strand onto a substrate moving past the bonding station, as soon as the heated strand leaves the output orifice, thus bonding the strand to the moving substrate. Biasing means selectively provides presettable compression or tension forces to the bonding shoe, as required by the particular bonding application. Optional cooling apparatus positioned immediately downstream from the bonding station, further compresses the hot melt strand on the substrate and cools the adhesive to bonding consistency.Field of SearchBonding of flexible filamentary material while in indefinite length or running lengthOf application of bonding pressure Of temperature and/or motion of heat exchange means Of feed or motion of indefinite length work or transfer carrying tape After bonding With gas, vapor, or flame contact means for work With work cooling means With separate (nonpress) heating means for work Means applying adhesively secured tape to seam Work traversing type and/or means applying work to wall or static structure With liquid applying means Grip or clamp for web end Implement carried web supply With liquid adhesive or adhesive activator applying means With handle or handgrip Rotary | |
