Jointing tape for wall slabs

• US 6,136,731 A
• Filed: 05/15/1998
• Issued: 10/24/2000
• Est. Priority Date: 01/24/1997
• Status: Expired due to Fees

• Current Assignee: Yoshiro Ohashi
• Original Assignee: Yoshiro Ohashi
• Inventors: Ohashi, Yoshiro
• Primary Examiner(s): ZIRKER, DANIEL R
• Application Number:
  US09/079,192
• Time in Patent Office: 893 Days
• Field of Search: 442/149, 442/151, 428/57, 428/60, 428/343, 428/354, 428/906
• US Class Current: 442/149
• CPC Class Codes: B32B 2262/0269 Aromatic polyamide fibres
• CPC Class Codes: B32B 2262/101 Glass fibres
• CPC Class Codes: B32B 5/022 Non-woven fabric
• CPC Class Codes: B32B 5/024 Woven fabric
• CPC Class Codes: B32B 5/26 another layer next to it also being fibrous or filamentary relative arrangement of fibres or filaments of different layers B32B5/12
• CPC Class Codes: Y10S 428/906 Roll or coil
• CPC Class Codes: Y10T 428/19 Sheets or webs edge spliced or joined
• CPC Class Codes: Y10T 428/195 Beveled, stepped, or skived in thickness
• CPC Class Codes: Y10T 428/28 Web or sheet containing structurally defined element or component and having an adhesive outermost layer
• CPC Class Codes: Y10T 428/2848 Three or more layers
• CPC Class Codes: Y10T 442/2738 Coating or impregnation intended to function as an adhesive to solid surfaces subsequently associated therewith
• CPC Class Codes: Y10T 442/2754 Pressure-sensitive adhesive

Abstract

A jointing tape bonded to a joint between wall slabs has an elongated thin tape portion having at both sides of a back surface thereof alignment faces which are adapted to be bonded to wall surfaces of the wall slabs, respectively. The tape portion is not elasticized in longitudinal and lateral directions thereof. A number of holes is formed in the tape portion. Each of the holes is large enough that putty can pass therethrough. The jointing tape has an elongated thin shielding member having a front surface which is stuck onto a center of the back surface of the tape portion by a first adhesive, and a rear surface which is adapted to be abutted against and cover a space formed in the joint. The shielding member has no hole through which the putty can pass and transparency capable of visibly confirming an opposite side thereof. The jointing tape has a second adhesive applied onto the rear surface of the shielding member and/or onto the alignment faces. An outer surface of the tape portion has no adhesive property.

Claims

1. A jointing tape adapted to be bonded to a joint between wall slabs, comprising:

an elongated thin tape portion having, on both sides of a back surface thereof, alignment faces which are adapted to be bonded to wall surfaces of the wall slabs, said tape portion being not elasticized in the longitudinal and lateral directions thereof;

a number of holes formed in the tape portion, each of the holes being large enough that putty can pass therethrough;

an elongated thin shielding member of a woven fabric having a front surface which is stuck onto a center of the back surface of the tape portion by a first adhesive, and a rear surface which is adapted to be abutted against and cover a space formed in the joint, said shielding member having no hole through which the putty can pass and transparency capable of visibly confirming an opposite side thereof;

a second adhesive applied onto the rear surface of the shielding member and/or onto the alignment faces;

wherein an outer surface of the tape portion is non-adhesive.

2. A jointing tape adapted to be bonded to a joint between wall slabs, comprising:

an elongated thin tape portion having, on both sides of a back surface thereof, alignment faces which are adapted to be bonded to wall surfaces of the wall slabs, said tape portion being not elasticized in the longitudinal and lateral directions thereof;

a number of holes formed in the tape portion, each of the holes being large enough that putty can pass therethrough;

an elongated thin shielding member of glass fiber having a front surface which is stuck onto a center of the back surface of the tape portion by a first adhesive, and a rear surface which is adapted to be abutted against and cover a space formed in the joint, said shielding member having no hole through which the putty can pass and transparency capable of visibly confirming an opposite side thereof;

a second adhesive applied onto the rear surface of the shielding member and/or onto the alignment faces;

wherein an outer surface of the tape portion is non-adhesive.