Joint tape embedding apparatus, system, and method

Patent metadata

Field	Value
Publication number	US-10422144-B2
Application number	US-201715722359-A
Country	US
Kind code	B2
Filing date	Oct 2, 2017
Priority date	Oct 2, 2017
Publication date	Sep 24, 2019
Grant date	Sep 24, 2019

Abstract

A joint tape embedding apparatus configured to determine the bonding and/or “feel” of embedding joint tape into a dry wall or wall board joint using a particular joint compound. The joint embedding apparatus is configured to allow the same user or different users to accurately repeat the determination of the bonding and/or “feel” attributes of the joint compound.

First claim

The invention claimed is:

1. A joint tape embedding apparatus configured for controlled embedding of the joint tape into joint compound, the apparatus comprising:
a frame;
a pair of spaced apart rails supported by the frame;
a carriage slidably supported by said rails;
a swing arm pivotably connected to the carriage; and
a knife connected to the swing arm; and

wherein the knife is provided with one or more weights and/or the pivoting arm is provided with one or more weights.

2. The apparatus according to claim 1 , wherein the knife is provided with one or more weights.

3. The apparatus according to claim 2 , wherein the one or more weights on the knife can be changed.

4. The apparatus according to claim 2 , wherein the pivoting arm is provided with one or more weights.

5. The apparatus according to claim 4 , wherein the knife is provided with a reinforcement bar configured to reinforce an edge of the knife.

6. The apparatus according to claim 4 , wherein an upper end of the pivoting arm is pivotably connected to the slidable carriage and a lower end of the pivoting arm is fixed to the knife.

7. The apparatus according to claim 1 , wherein the pivoting arm is provided with one or more weights.

8. The apparatus according to claim 7 , wherein the one or more weights on the pivoting arm can be changed.

9. The apparatus according to claim 1 , wherein the knife is provided with a reinforcement bar configured to reinforce an edge of the knife.

10. The apparatus according to claim 1 , further comprising a joint compound applicator for delivering joint compound to the knife during operation.

11. The apparatus according to claim 10 , wherein the joint applicator comprises a joint compound pump having tubing connected to a nozzle located to supply joint compound to the knife.

12. The apparatus according to claim 1 , wherein the spaced apart rails are connected to cross-members of the frame located at ends of the frame.

13. The apparatus according to claim 1 , further comprising an actuator configured to move the slidable carriage.

14. The apparatus according to claim 13 , comprising a sensor configured to measure force on the knife during operation.

15. The apparatus according to claim 13 , further comprising one or more sensors for detecting the location and speed of movement of the slidable carriage during operation.

16. A joint tape embedding system configured for controlled embedding of joint tape into a drywall joint using a particular joint compound, the apparatus comprising:
the apparatus according to claim 1 , comprising
the frame;
the pair of spaced apart rails supported by the frame;
the carriage slidably supported by said rails;
the swing arm pivotably connected to the carriage;
the knife connected to the swing arm,
wherein the knife is provided with one or more weights and/or the pivoting arm is provided with one or more weights;

one or more electrical sensors to measure one or more of force, drag and knife deflection involved with the spreading or applying the joint compound into a joint using the knife; and
a computer for receiving input signals from the one or more electrical sensors and configured to provide quantitative assessment of the feel attributes of the joint compound.

17. A method for controlled embedding of joint tape into a drywall joint using a particular joint compound comprising:
providing a measuring device comprising the apparatus of claim 1 comprising
the frame;
the pair of spaced apart rails supported by the frame;
the carriage slidably supported by said rails;
the swing arm pivotably connected to the carriage; and
a knife applicator comprising the knife, wherein the knife is connected to the swing arm,
wherein the knife is provided with one or more weights and/or the pivoting arm is provided with one or more weights;

providing a supply of joint compound to be measured to the knife applicator;
using the knife applicator to apply joint compound to embed joint tape into a drywall joint;
measuring one or more force, drag and knife deflection involved with the spreading or applying of the joint compound using the knife applicator;
quantitatively assessing the particular joint compound using the measured one or more force, drag and knife deflection of the knife; and
determining the feel of the particular joint compound expressed in a manner understandable to user's of joint compounds.

18. A joint tape embedding apparatus configured for controlled embedding of the joint tape into joint compound, the apparatus comprising:
a frame;
a pair of spaced apart rails supported by the frame;
a carriage slidably supported by said rails;
a swing arm pivotably connected to the carriage; and
a knife connected to the swing arm; and
a joint compound applicator for delivering joint compound to the knife during operation.

19. A joint tape embedding apparatus configured for controlled embedding of the joint tape into joint compound, the apparatus comprising:
a frame;
a pair of spaced apart rails supported by the frame;
a carriage slidably supported by said rails to slide in a sliding direction;
a swing arm pivotably connected to the carriage; and
a knife, for embedding the joint tape into the joint compound, connected to the swing arm, wherein the knife has an exposed edge, distal to the swing arm, transverse to the sliding direction.

20. The apparatus according to claim 19 , wherein the swing arm is pivotably connected between the rails to the carriage.

Assignees

• United States Gypsum Co

Inventors

• Pelot David D
• Rago William J
• Cochran Charles W
• Emami Samar

Classifications

• E04F21/026 Primary

  for applying adhesive or joint compound to joint tapes, in particular drywall tapes (joint tapes E04F13/042; drywall taper tools E04F21/1657) · CPC title

• E04F21/1657

  for applying tape to joints, e.g. drywall taper tools · CPC title

• B65H35/0053

  and affixing it to a surface · CPC title

• B44C7/04

  for applying adhesive · CPC title

• E04F21/165

  for finishing joints, e.g. implements for raking or filling joints, jointers (bricklayers' tools E04G21/16; repairing, e.g. filling cracks, E04G23/02 {; wallpaper scrapers or the like B44C7/02; implements for cleaning joints A47L13/10}) · CPC title