Electrical conduit entry template

• US 5,577,328 A
• Filed: 04/13/1995
• Issued: 11/26/1996
• Est. Priority Date: 04/13/1995
• Status: Expired due to Fees

• Current Assignee: James E. Kerry Sr
• Original Assignee: James E. Kerry Sr
• Inventors: Kerry, James E. Sr.
• Primary Examiner(s): Will, Thomas B.
• Application Number:
  US08/422,071
• Time in Patent Office: 593 Days
• Field of Search: 33/563, 33/565, 33/DIG. 10, 33/1 B, 33/566, 33/1 G
• US Class Current: 33/563
• CPC Class Codes: B43L 13/201 Stencils for drawing figures, objects
• CPC Class Codes: G01B 3/14 Templates for checking contours templates for mounting doors or windows E04F21/0007

Abstract

A template for facilitating marking of entry holes in a surface for passage therethrough of conduit has a flat portion formed of semi-rigid material and two flat sides. The flat portion has a central opening and a plurality of markings on one side. The markings are parallel to a section of the perimeter and spaced inwardly at graduated distances therefrom. A plurality of slots are formed through the flat portion, spaced apart and parallel to one another, substantially coextensively with each corresponding one of the plurality of markings, to thereby permit a user of the template to make a mark through one of the slots to indicate an outer edge of a hole of a preselected size to be formed using the template.

Claims

1. A template for facilitating marking of entry holes in a surface for passage therethrough of conduit, the template comprising:

at least one flat portion formed of semi-rigid material and having a first side and a second side opposed to the first side, the first side and the second side being limited in their extent by a perimeter,

the at least one flat portion having a central opening formed therethrough from the first side to the second side,

the at least one flat portion further having a plurality of markings on the first side, the plurality of markings being parallel to at least a section of the perimeter and spaced inwardly at graduated distances therefrom, the plurality of markings corresponding to outside diameter sizes of conduit, and

a plurality of slots formed through the at least one flat portion from the first side to the second side, spaced apart and parallel to one another, substantially coextensively with each corresponding one of the plurality of markings spaced inwardly from at least a section of the perimeter of the at least one flat portion, to thereby permit a user of the template to make a mark through one of the slots to indicate an outer edge of a hole of a preselected size to be formed using the template, and

further comprising indicia on the first side thereof in positions closely associated with and corresponding to each of the plurality of markings to thereby indicate the internal diameter of a conduit for which a hole being marked with the template is to be formed.

2. The template of claim 1, wherein the first flat portion is square, having a perimeter with a first edge, a second edge, a third edge and a fourth edge all of equal length, and further wherein the markings of the plurality of markings parallel to a section of the perimeter are elongated markings parallel to each other and inwardly of at least one of the first edge, the second edge, the third edge and the fourth edge, and still further wherein the plurality of slots are elongated, straight slots formed along at least some of corresponding ones of the plurality of elongated markings parallel to one of the first edge, the second edge, the third edge and the fourth edge of the at least one flat square portion.

3. The template of claim 2, and further comprising first, second, third and fourth straight slots which extend at angles substantially from the corners of the template toward the center of the template and radiate outwardly therefrom, the first, second, third and fourth straight slots each passing entirely through the at least one flat, square portion from the first side to the second side and extending at 45°

from first, second, third and fourth corresponding points spaced outwardly from and around the central opening, along imaginary lines from the center of the template to each of four corresponding corners formed by intersections of the first, second third and fourth edges of the at least one flat square portion, to thereby permit the user of the template to mark cross hairs by which to accurately align a tool for forming a conduit entry hole.

4. The template of claim 1, wherein the central opening in the at least one flat portion is sized appropriately to permit passage therethrough of a marking device, to thereby mark the center of a hole to be marked with the template.

5. The template of claim 2, and further comprising a ruler contiguous with the entire length of at least one of the first edge, the second edge, the third edge and the fourth edge of the at least one flat, square portion, to thereby facilitate correct placement of markings which indicate the distance between holes to be marked using the template, as well as to mark a preselected distance from a surface edge for the holes to be formed thereon.

6. The template of claim 2, wherein the at least one flat, square portion comprises a first flat square portion and a second flat square portion, the first flat, square portion being smaller than the second flat, square portion and the second flat, square portion having a central, square opening therein, the opening in the second flat portion being sized for receipt of the first flat portion, and the opening in the first flat square portion being a hole sized appropriately to permit passage therethrough of a marking device, to thereby mark the center of a hole to be marked on a surface using the first flat square portion and the second flat, square portion of the template together for marking a hole having a diameter larger than can be marked with only the first flat square portion of the template alone.

7. The template of claim 6, wherein the second flat, square portion includes a shoulder formed around the perimeter of the central, square opening to prevent the first flat square portion from passing entirely through the opening in the second flat, square portion when the first flat, square portion and the second flat, square portion are used together to mark a conduit entry hole.

8. The template of claim 1, wherein the indicia are molded as part of the template and are raised from the first surface thereof.

9. The template of claim 1, wherein the indicia are marked on the template so as to be flush with the first surface thereof.

10. The template of claim 6, wherein each of the first flat, square portion and the second flat, square portion further comprise first, second, third and fourth slots which extend at angles substantially from the corners of the corresponding first and second flat square portions toward the centers thereof, each of the first, second, third and fourth straight slots of each of the first and second flat square portions passing entirely through the corresponding flat, square portion from the first side to the second side and extending at 45°

from first, second, third and fourth corresponding points spaced outwardly from and around the central opening, along imaginary lines from the center of the template to each of four corresponding corners formed by intersections of the first, second third and fourth edges of the corresponding flat square portion, to thereby permit the user of the template to mark cross hairs by which to accurately align a tool for forming a conduit entry hole.

11. The template of claim 6, and further comprising a ruler contiguous with the entire length of at least one of the first edge, the second edge, the third edge and the fourth edge of the first flat, square portion and a ruler contiguous with at least one of the first edge, the second edge, the third edge and the fourth edge of the second flat, square portion, to thereby facilitate correct placement of markings which indicate the distance between holes to be marked using the template, as well as to mark a preselected distance from a surface edge for the holes to be formed thereon.

12. The template of claim 1, wherein the template is formed of plastic.

13. The template of claim 1, wherein the template is formed of resin.

14. The template of claim 1, wherein the template is formed of injection molded plastic.

15. The template of claim 2, wherein each of the first, second, third and fourth edges of the at least one flat square portion is 1.875 inches long and the plurality of elongated, straight slots comprise four parallel slots spaced apart at distances appropriate for marking the edges of holes to be formed in a surface for conduit having an interior diameter of one-half, three quarters, one, and one and one quarter inches and the first, second, third and fourth edges of the at least one flat portion can be used for marking a hole for entry of a conduit having a diameter of one and one-half inches.

16. The template of claim 6, wherein each edge of the first flat square portion is 1.875 inches long and the plurality of elongated, straight slots comprise four parallel slots spaced apart at distances appropriate for marking the edges of holes to be formed in a surface for conduit having an interior diameter of one-half, three quarters, one, and one and one quarter inches and the outside edge of the first flat, square portion can be used for marking a hole for conduit having an interior diameter of one and one-half inches, and further wherein each edge of the second flat square portion is four and one-half inches long and the plurality of elongated, straight slots in the second flat square portion comprise four parallel slots spaced apart at distances appropriate for marking the edges of holes to be formed in a surface for conduit having an interior diameter of two, two and one-half, three, and three and one-half inches, and each of the first, second, third and fourth outside edges of the second flat square portion can be used to mark an entry hole for conduit having an interior diameter of four inches.

17. The template of claim 5, wherein the ruler is formed on only one of the first edge, the second edge, the third edge and the fourth edge of the first flat, square portion and each one of the plurality of elongated slots are spaced inwardly from and are parallel to the same one of the first edge, the second edge the third edge and the fourth edge of the first square, flat portion of the template upon which the ruler is formed.

18. A method for marking entry holes to be formed in a surface for passage through the holes of conduit, the method comprising the steps of:

(a) applying a template having at least one flat portion to the surface to be marked, the template having at least one flat portion formed of semi-rigid material and having a first side and a second side opposed to the first side, the first side and the second side being limited in their extent by a perimeter, the at least one flat portion having a central opening formed therethrough from the first side to the second side, the at least one flat portion further having a plurality of markings on the first side, the plurality of markings being parallel to a section of the perimeter of the at least one flat portion and spaced inwardly at graduated distances therefrom, and a plurality of slots formed through the at least one flat, portion from the first side to the second side, spaced apart and parallel to one another, substantially coextensively with corresponding ones of the plurality of markings spaced inwardly from a section of the perimeter of the at least one flat portion, the first side still further having indicia in positions closely associated with and corresponding to each of the plurality of markings to thereby indicate the internal diameter of a conduit for which a hole being marked with the template is to be formed,

(b) marking a line on the surface to be marked at a preselected distance from an edge of the surface to be marked,

(c) making a transverse mark at one end of the line to thereby indicate the outermost edge of a hole to be formed in the surface, and placing at least a portion of the perimeter of the template against the line marked, using the transverse mark as an alignment point, and

(d) selecting one of the plurality of slots by determining which of the corresponding indicia matches the internal diameter of the conduit to be passed through the hole to be formed,

(e) marking the edge of the hole to be formed by making a mark through the preselected one of the plurality of slots formed through the at least one flat portion of the template, to thereby mark the circumference of the entry hole to be formed, without the necessity of performing any mathematical calculations.

19. The method of claim 18, wherein the template used has four straight slots extending radially outwardly and spacedly from the central opening of the template, each slot being at 90°

for each adjacent slot, and extending outwardly toward the perimeter of the flat portion, and further comprising making a mark on the surface through each one of the four straight slots extending radially outwardly.

20. The method of claim 19, and further comprising marking the center of the hole to be formed through the central opening of the at least one flat portion of the template.