Resources Contact Us Home
Method and apparatus for seaming abutting layers of planar material

Image Number 6 for United States Patent #6997227.

The present invention is concerned with a method and apparatus for seaming together abutting side-by-side layers of planar material with adhesive and a backing tape to form a finished seam extending along the line of abutment. The method consists of laying a backing tape underneath the line of abutment between adjacent layers of planar material, such as floorcovering, followed by dispensing an adhesive along the edges of the abutting layers while simultaneously centering the backing tape with the line of abutment and dispensing adhesive on top of the backing tape. The edges of the abutting layers are then pressed together and against the backing tape until the adhesive has at least partially set thereby forming a finished seam. The apparatus is an applicator tip comprising an upright body having a tape retaining portion for centering the backing tape, a foot portion having wedges for upraising and tilting marginal portions of the abutting layers, an ankle portion that is relatively narrow, and an upper leg portion adapted to connect with an adhesive dispenser via a swiveling elbow connection. A flow passageway extends through the elbow connection from the dispenser to a leg passageway extending from the upper leg portion, through the ankle portion, to the foot portion. The leg passageway connects with an ankle passageway that terminates in orifices on either side of the ankle portion, and with a foot passageway that terminates in orifices on the rear face of the applicator tip. Thus, adhesive injected into the applicator tip by the dispenser is discharged through the orifices on the ankle portion onto the edges of the abutting layers and is discharged through the orifices on the rear face of the foot portion onto the top surface of the backing tape as the applicator is advanced along the line of abutment between the abutting layers.

  Recently Added Patents
Facial recognition using a sphericity metric
Polarized film apparatus with bands of alternating orientation
Display system, display control method and computer program
Circuit for and method of enabling communication of cryptographic data
Light emitting device
High pressure refolding of protein aggregates and inclusion bodies
System for hot-start amplification via a multiple emulsion
  Randomly Featured Patents
Bag for at least partially enveloping a heart
Mesa release and deposition (MRD) method for stress relief in heteroepitaxially grown GaAs on Si
Vertical stack type multi-chip package having improved grounding performance and lower semiconductor chip reliability
Method for preparing filled silicone rubber particles
Dry composite blended magnetic developer of resin encapsulated fine magnetite and resin encapsulated coarse magnetite
Liquid-ink writing instrument having a reservoir fitted with a system to prevent loss of priming
Positioning device with bearing mechanism
Polarized magnetic ring for speed sensing bearing assembly
Skating motion simulator
Mobile phone