IP Library Granted Patent US 8,224,628
Granted Patent B2
US 8,224,628 · App. 12/150,791 · Granted Jul 17, 2012

Methods and apparatuses for placing a flexible drop in a CAD drawing

Assignee: M.E.P. CAD, Inc.
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Quick Facts
Patent No.
US 8,224,628
App. No.
12/150,791
Granted
Jul 17, 2012
Kind
B2
Abstract

The present invention is directed to methods, systems, and apparatuses for automatically placing flexible drops in a computer automated design application, and more particularly to automatically placing and drawing flexible connections between sprinkler heads and sprinkler system pipes within a CAD drawing. The present invention allows a user to automatically place and draw flexible drops from numerous sprinkler heads to sprinkler system piping simultaneously based upon a set of user-chosen flex drop parameters. The present invention may also be utilized in other applications, such as automatically placing and drawing flexible electrical connections or flexible piping connections in non-sprinkler applications.

Claims (33)

1. A method for determining and drawing a flexible drop for connecting a sprinkler head to a sprinkler system pipe within a CAD drawing of a sprinkler system, comprising the steps of:

receiving from a user a location for the sprinkler head;

receiving from the user one or more parameters for determining the flexible drop, the one or more parameters including a connection type between the sprinkler head and the sprinkler system pipe, the connection type including a flexible drop configuration and a hard-pipe-to-flexible-drop configuration;

determining a connection point on the sprinkler system pipe for connecting the flexible drop based on the location for the sprinkler head, a location for the sprinkler system pipe, and the one or more parameters;

if the connection type is the flexible drop configuration, drawing the flexible drop within the CAD drawing from the connection point to the location for the sprinkler head; and

if the connection type is the hard-pipe-to-flexible-drop configuration, drawing a hard pipe within the CAD drawing from the connection point to a pipe-drop-to-sprinkler distance, and drawing the flexible drop within the CAD drawing from the pipe-drop-to-sprinkler distance to the location for the sprinkler head.

2. The method as in claim 1 , wherein the one or more parameters further include a length of the flexible drop.

3. The method as in claim 2 , wherein the length is selected by the user from a predetermined list of allowable lengths.

4. The method as in claim 2 , wherein the length is a desired length input by the user.

5. The method as in claim 1 , wherein the one or more parameters further include the pipe-drop-to-sprinkler distance.

6. The method as in claim 5 , wherein the pipe-drop-to-sprinkler distance is selected by the user from a predetermined list of allowable lengths.

7. The method as in claim 5 , wherein the pipe-drop-to-sprinkler distance is a desired length input by the user.

8. The method as in claim 1 , wherein the one or more parameters include a list of types of the flexible drop from which the user may choose.

9. The method as in claim 8 , wherein the list of types includes stainless steel and aluminum.

10. The method as in claim 1 , wherein the one or more parameters include a list of connectors from which the user may choose.

11. The method as in claim 10 , wherein the list of connectors includes a male connector and a female connector.

12. The method as in claim 1 , wherein the one or more parameters include a list of manufacturers from which the user may choose.

13. The method as in claim 1 , wherein the one or more parameters include a list of finishes for the flexible drop from which the user may choose.

14. The method as in claim 13 , wherein the list of finishes includes polished and none.

15. The method as in claim 1 , wherein the one or more parameters include a list of sizes from which the user may choose.

16. The method as in claim 1 , wherein the one or more parameters include a desired hydraulic equivalent length.

17. The method as in claim 1 , further comprising the step of determining if the flexible drop is drawn between the location and the connection point with a gap between the flexible drop and the connection point.

18. The method as in claim 17 , wherein if the gap exists, further comprising the step of communicating an existence of the gap to the user.

19. The method as in claim 1 , further comprising the step of determining if the flexible drop is drawn between the location and the connection point with a gap between the flexible drop and the location.

20. The method as in claim 19 , wherein if the gap exists, further comprising the step of communicating an existence of the gap to the user.

21. The method as in claim 1 , further comprising the step of communicating to the user a set of coordinates indicating a location of the flexible drop within the CAD drawing.

22. The method as in claim 21 , wherein the set of coordinates includes an X, a Y, and a Z coordinate for each of a plurality of vertexes.

23. The method as in claim 1 , further comprising the step of hydraulically simulating the flexible drop within the CAD drawing.

24. The method as in claim 1 , further comprising the step of altering a curve of the flexible drop drawn within the CAD drawing in response to a manipulation by the user of the flexible drop within the CAD drawing.

25. The method as in claim 1 , further comprising the step of altering an orientation of the flexible drop drawn within the CAD drawing in response to a manipulation by the user of the flexible drop within the CAD drawing.

26. The method as in claim 1 , further comprising the step of altering an appearance of the flexible drop drawn within the CAD drawing in response to a manipulation by the user of the flexible drop within the CAD drawing.

27. The method as in claim 1 , further comprising the step of integrating the flexible drop into the CAD drawing so as to enable a hydraulic calculation of the sprinkler system.

28. The method as in claim 1 , further comprising the step of integrating the flexible drop into the CAD drawing so as to enable a hydraulic simulation of the sprinkler system.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 6, 2026
From: M.E.P. CAD INC.; AUTO PREP, LLC
To: ENG PURCHASER, INC.
Reel/Frame 073382/0539 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE NAME PREVIOUSLY RECORDED ON REEL 20954 FRAME 625. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Jul 2, 2025
From: REGHETTI, JOSEPH P.; HOEFT, SHANE
To: M.E.P. CAD INC.
Reel/Frame 071910/0987 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 1, 2008
From: REGHETTI, JOSEPH P.; HOEFT, SHANE
To: M.E.P. CAD, INC.
Reel/Frame 020954/0625 →
Continuity (3)
Provisional Application 60915164 · May 1, 2007
Provisional Application 61072734 · Apr 2, 2008
Related Publication 20080303844A1 · Dec 11, 2008