# US 9,752,706 B2 · Sealed transverse locking pipe and fittings

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 9,752,706 B2
- Document ID: US9752706B2
- Status: Granted
- Kind: B2
- Application number: 14/020,611
- Filed: 2013-09-06
- Published: 2014-03-13
- Granted: 2017-09-05
- Earliest claimed: 2012-09-07
- Assignees: Famous Industries, Inc.
- Applicants: Jan Bauerdick; Don Smith; Thomas J. Moses; Jeffrey A. Koller
- Inventors: Jan Bauerdick; Don Smith; Thomas J. Moses; Jeffrey A. Koller
- Web page: https://patentgrep.com/patent/US9752706B2

## CPC

- F16L 9/17: obtained by bending a sheet longitudinally and connecting the edges
- F16L 13/116: {for socket pipes}
- F16L 13/16: the pipe joint consisting of overlapping extremities having mutually co-operating collars
- F16L 25/08: in the form of screws, nails or the like
- F24F 13/0209: {characterised by their connecting means, e.g. flanges}
- Y10T 29/49826: Assembling or joining
- Y10T 29/49947: by applying separate fastener
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A pipe and fitting coupling system includes a first pipe, a second pipe, and a joint. A receiving end of the second pipe includes a first flange, a second flange, a groove, and a sealant. The second flange extends further than the first flange. The groove is disposed at the pipe diameter and between the first flange and the second flange. The first flange has an inwardly angled face to meet the groove and the second flange has an outwardly angled face to meet the groove. The sealant is disposed in the groove to seal the plain end of the first pipe in the receiving end. The joint is formed by the cooperative alignment of the plain end being inserted into the receiving end and being sealed by the sealant.

## Claims

### Claim 1

A pipe and fitting coupling system comprising:
a. a first pipe having a plain end;
b. a second pipe having an axial direction towards the first pipe, and further having a receiving end, the receiving end being a single piece of shaped sheet metal and comprising;
i. a first flange having an inwardly facing face;
ii. a second flange having an outwardly facing face;
iii. a groove disposed between the inwardly facing face of the first flange and the outwardly facing face of the second flange, wherein the first flange and the second flange extend in the axial direction from the groove, the second flange extending further in the axial direction than the first flange;
iv. a sealant disposed in the groove to seal the plain end in the receiving end; and
c. wherein a joint is formed by the cooperative alignment of the plain end inserted over the outwardly facing face of the second flange and into the groove in the receiving end and against the sealant within the groove.

### Claim 2 (depends on 1)

The pipe and fitting coupling system according to claim 1, further comprising:
a. a transverse lock disposed at the joint to secure the plain end in the receiving end, the transverse lock including a hem disposed at the plain end and a locking groove disposed at the receiving end, the hem and locking groove being configured to engage one another.

### Claim 3 (depends on 1)

The pipe and fitting coupling system according to claim 1, further comprising:
a. a longitudinal lock including a male portion and a female portion disposed at opposing longitudinal edges of each pipe, the longitudinal lock being configured to secure the opposing longitudinal edges of each pipe together in response to the male portion being inserted into the female portion.

### Claim 4 (depends on 3)

The pipe and fitting coupling system according to claim 3, wherein the female portion of the longitudinal lock includes a channel, and wherein a sealant is disposed in the channel to seal the male end of the longitudinal lock to the female end of the longitudinal lock.

### Claim 5 (depends on 4)

The pipe and fitting coupling system according to claim 4, further comprising a second groove corresponding to the opposite side of the first flange, and wherein a sealant is disposed in the second groove to reduce leakage.

### Claim 6 (depends on 1)

The pipe and fitting coupling system according to claim 1, further comprising:
a. a fastener disposed at the joint and configured to extend radially inwardly through a wall of the plain end and a wall of the second flange to secure the first pipe to the second pipe.

### Claim 7 (depends on 6)

The pipe and fitting coupling system according to claim 6, wherein the fastener is a sheet metal screw configured to pierce the wall of the plain end and pierce the wall of the second flange to secure the first pipe to the second pipe.

### Claim 8 (depends on 1)

The pipe and fitting coupling system according to claim 1, further comprising:
a. a series of crimps disposed about the second flange.

### Claim 9 (depends on 8)

The pipe and fitting coupling system according to claim 8, further comprising:
a. a tapered segment formed by series of crimps disposed about the second flange to facilitate telescoping the second flange into the plain end.

### Claim 10 (depends on 1)

The pipe and fitting coupling system according to claim 1, wherein the inwardly facing face is inwardly angled to meet the groove and the outwardly angled face is outwardly angled to meet the groove.

### Claim 11 (depends on 1)

The pipe and fitting coupling system according to claim 1, wherein the groove has two legs connected by a base; wherein the first flange and the second flange each form one of the two legs; and wherein the sealant is disposed in the base of the groove.

### Claim 12 (depends on 11)

The pipe and fitting coupling system according to claim 11, wherein the plain end is encapsulated between the two legs and the base of the groove.

### Claim 13 (depends on 1)

The pipe and fitting coupling system according to claim 1, wherein the receiving end of the second pipe comprises a first receiving end, and wherein the second pipe further comprises a second receiving end opposite the first receiving end.

### Claim 14

A method of making a pipe and fitting coupling system, the method comprising the steps of:
a. forming a plain end in a first pipe; and
b. forming a receiving end in a second pipe, the second pipe having an axial direction towards the first pipe, the receiving end being a single piece of shaped sheet metal and forming the receiving end comprises the steps of;
c. forming a first flange having an inwardly facing face;
d. forming a second flange having an outwardly facing face;
e. forming a groove between the inwardly facing face of the first flange and the outwardly facing face of the second flange, wherein the first flange and the second flange extend in the axial direction from the groove, the second flange extending further in the axial direction than the first flange;
f. disposing a sealant in the groove to seal the plain end in the receiving end; and
g. forming a joint by cooperatively aligning the plain end over the outwardly facing face of the second flange and into the groove in the receiving end against the sealant within the groove.

### Claim 15 (depends on 14)

The method according to claim 14, further comprising the step of:
a. forming a transverse lock disposed at the joint to secure the plain end in the receiving end, the transverse lock including a hem disposed at the plain end and a locking groove disposed at the receiving end, the hem and locking groove being configured to engage one another.

### Claim 16 (depends on 14)

The method according to claim 14, further comprising the step of:
a. forming a longitudinal lock including a male portion and a female portion disposed at opposing longitudinal edges of each pipe, the longitudinal lock being configured to secure the opposing longitudinal edges of each pipe together in response to the male portion being inserted into the female portion.

### Claim 17 (depends on 16)

The method according to claim 16, wherein the forming the receiving end in a second pipe includes the step of removing a segment of the sheet metal to form a notch to avoid interference with the longitudinal lock.

### Claim 18 (depends on 16)

The method according to claim 16, further comprising the step of disposing a sealant in a channel of the female portion of the longitudinal lock to seal the male end of the longitudinal lock to the female end of the longitudinal lock.

### Claim 19 (depends on 18)

The method according to claim 18, further comprising the step of disposing a sealant in a second groove corresponding to the opposite side of the first flange to reduce leakage.

### Claim 20 (depends on 14)

The method according to claim 14, further comprising the step of:
a. securing the joint with a fastener configured to extend radially inwardly through a wall of the plain end and a wall of the second flange.

### Claim 21 (depends on 20)

The method according to claim 20, wherein the securing the joint with a fastener step comprises:
a. piercing the wall of the plain end and the wall of the second flange with a sheet metal screw to secure the first pipe to the second pipe.

### Claim 22 (depends on 14)

The method according to claim 14, further comprising the step of:
a. forming a series of crimps disposed about the second flange.

### Claim 23 (depends on 22)

The method according to claim 22, further comprising the step of:
a. forming a tapered segment defined by the series of crimps disposed about the second flange to facilitate telescoping the second flange into the plain end.

### Claim 24 (depends on 14)

The method according to claim 14, wherein the inwardly facing face is inwardly angled to meet the groove and the outwardly facing face is outwardly angled to meet the groove.

### Claim 25

A method of coupling a plurality of components in a pipe and fitting coupling system, the method comprising the steps of:
a. orienting a plain end of a first pipe with a receiving end of a second pipe, the second pipe having an axial direction towards the first pipe, the receiving end being a single piece of shaped sheet metal and comprising;
i. a first flange having an inwardly facing face;
ii. a second flange having an outwardly facing face;
iii. a groove disposed between the inwardly facing face of the first flange and the outwardly facing face of the second flange, wherein the first flange and the second flange extend in the axial direction from the groove, the second flange extending further in the axial direction than the first flange; and
iv. a sealant disposed in the groove to seal the plain end in the receiving end; and
b. telescopically sliding the plain end over the outwardly facing face of the second flange;
c. cooperatively aligning the plain end with the groove; and
d. forming a joint by urging the plain end against the sealant.

### Claim 26 (depends on 25)

The method according to claim 25, further comprising the step of:
a. securing the joint with a transverse lock disposed at the joint, the transverse lock including a hem disposed at the plain end and a locking groove disposed at the receiving end, the hem and locking groove being configured to engage one another.

### Claim 27 (depends on 25)

The method according to claim 25, further comprising the step of:
a. forming each pipe by securing a male portion and a female portion disposed at opposing longitudinal edges of each pipe, wherein the male portion and the female portion form a longitudinal lock, the longitudinal lock being configured to secure the opposing longitudinal edges of each pipe together in response to the male portion being inserted into the female portion.

### Claim 28 (depends on 25)

The method according to claim 25, further comprising the step of:
a. securing the joint with a fastener disposed at the joint and configured to extend radially inwardly through a wall of the plain end and a wall of the second flange to secure the first pipe to the second pipe.

### Claim 29 (depends on 28)

The method according to claim 28, wherein the fastener is a sheet metal screw configured to pierce the wall of the plain end and pierce the wall of the second flange to secure the first pipe to the second pipe.

### Claim 30 (depends on 25)

The method according to claim 25, wherein the inwardly facing face is inwardly angled to meet the groove and the outwardly facing face is outwardly angled to meet the groove.

### Claim 31 (depends on 27)

The method according to claim 27, wherein a sealant is disposed in a channel of the female portion of the longitudinal edge of each pipe, and wherein the forming each pipe step further includes sealing the male portion of the longitudinal edge of each pipe with the sealant in the female portion.

### Claim 32 (depends on 31)

The method according to claim 31, wherein a sealant is disposed in a second groove corresponding to the opposite side of the first flange to reduce leakage.