Plumbing fitting assemblies

Abstract

Plumbing fitting assemblies are described. The plumbing fitting assemblies use a male and female fitting combination that enables a user or installer to make a sealed connection on an internal diameter of a female part or receiving end by way of an o-ringed shank on a male part or insert end. A connecting device is rotatably attached to the male end. The connecting device also engages to an outer surface of the female part such that the sealed fitting assemblies will not disconnect under normal pressure of a fluid or air working through the assemblies.

Claims

1. A valve fitting, comprising: an adaptor comprising a supply end and a receiving end, the receiving end comprising an exterior surface and an internal sealing surface; a valve assembly comprising an insert end; the insert end comprising a sealing surface; and a connector, wherein: during a rough plumbing installation of the adaptor, the connector engages a test cap assembly inserted into the receiving end, the test cap assembly including a test cap and an o-ring, the test cap having a wall extending on a longitudinal axis to a sealed end, the longitudinal axis being perpendicular to the sealed end, the wall protecting the internal sealing surface of the receiving end of the adaptor by forming a seal against the internal sealing surface of the receiving end of the adaptor, the sealed end including an annular ring on an outer surface and the connector including an internal shoulder of an engagement end engaging the annular ring of the test cap assembly to hold the test cap assembly within the receiving end; and during a finish plumbing installation following a removal of the test cap assembly from the receiving end of the adaptor of the rough plumbing installation, the sealing surface of the insert end of the valve assembly seals against the internal sealing surface of the receiving end of the adaptor in a sealing engagement, the connector engaged to the valve assembly and an exterior of the adaptor, the connector forming a sealing engagement between the internal sealing surface of the receiving end of the adaptor and the sealing surface of the insert end of the valve assembly, the internal shoulder of the engagement end engaging a retaining ring circumscribing the insert end of the valve assembly to retain the connector to the valve assembly.

2. The valve fitting according to claim 1, wherein the sealing surface of the insert end includes one or more o-rings to seal against the internal sealing surface of the receiving end.

3. The valve fitting according to claim 1, wherein the connector shrouds or protects the sealing surface of the insert end.

4. The valve fitting according to claim 1, wherein the sealing surface of the insert end includes one or more grooves.

5. The valve fitting according to claim 4, wherein the sealing surface is generally smooth between the one or more grooves.

6. The valve fitting according to claim 5, wherein the grooves retain or include o-rings to form a seal between the sealing surface of the insert end and the internal sealing surface of the receiving end.

7. The valve fitting according to claim 1, wherein the valve fitting comprises a valve positioned between the insert end and an output end of the valve assembly, and a valve handle is operatively engaged to the valve.

8. The valve fitting according to claim 1, wherein the connector is a nut, wherein the nut is rotatably engaged to the valve assembly, and the nut comprises a threaded internal diameter.

9. The valve fitting according to claim 8, wherein the nut is held in the rotational engagement to the insert end via the retaining ring.

10. The valve fitting according to claim 8, wherein the nut shrouds the sealing surface on the insert end.

11. The valve fitting according to claim 8, wherein the receiving end of the adaptor comprises a threaded external diameter, wherein the threaded internal diameter of the nut threadably engages to the threaded external diameter of the receiving end of the adaptor.

12. The valve fitting according to claim 8, wherein an annular gap is formed between the threaded internal diameter of the nut and the insert end of the valve assembly, and the annular gap forms a space or void that is sized to receive the receiving end of the adaptor.

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) FIG. 1 is a perspective view of the angle valve fitting.

(2) FIG. 2 is a sectional view of the angle valve fitting.

(3) FIG. 3 is a perspective view of the adaptor.

(4) FIG. 4 is a perspective view of the test cap fitting.

(5) FIG. 5. is a sectional view of the test cap fitting

(6) FIG. 6 is a perspective view of the straight valve fitting.

(7) FIG. 7 is a sectional view of the straight valve fitting.

(8) FIG. 8 is a view of the adaptor for a sweat installation.

(9) FIG. 9 is a sectional view of the adaptor of FIG. 8.

(10) FIG. 10 is a view of the adaptor for a compression installation.

(11) FIG. 11 is a sectional view of the adaptor of FIG. 10.

(12) FIG. 12 is a view of the adaptor for a flexible tube installation.

(13) FIG. 13 is a sectional view of the adaptor of FIG. 12.

DETAILED DESCRIPTION OF INVENTION

(14) Plumbing fitting assemblies will now be described with reference to FIGS. 1-13. An angled valve fitting 10 is shown in FIGS. 1 and 2. The angled valve fitting 10 includes an adaptor 50 and a valve assembly 120. The adaptor 50 engages with the valve assembly 120 to form the valve fitting 10. The adaptor 50 is shown in FIG. 3. As shown in FIGS. 4 and 5, the adaptor 50 may also engage with a test cap 174 to form a test cap fitting 20. A connecting device 90 may be used in connecting the adaptor 50 to both the valve assembly 120 and the test cap 174. A straight valve fitting 11 connecting to the adaptor 50 is shown in FIGS. 6 and 7.

(15) The plumbing fitting assemblies described herein allow the plumber to install the test cap fitting 20 to the adaptor 50 at the rough plumbing installation. When the plumber returns for the finish plumbing installation, the plumber may remove the connecting device 90 and remove the test cap 174 from the adaptor 50. Now, the plumber may engage the valve assembly 120 to the same adaptor 50 and make a seal using the same type of connecting device 90 that was used with the test cap 174 to complete the valve fitting 10. Notably, no specialized tools are required and no parts are discarded in making the seal.

(16) The valve fitting 10 is shown in FIG. 1. The valve fitting 10 includes the adaptor 50 and the valve assembly 120. The adaptor 50 engages with the valve assembly 120 to form the valve fitting 10. As shown in FIGS. 4 and 5, the adaptor 50 may also engage with the test cap 174 to form the test cap fitting 20. The connecting device 90 may be used in connecting the adaptor 50 to both the valve assembly 120 and to the test cap 174.

(17) The valve fitting 10 will now be described in detail. With reference to FIG. 1, a supply pipe 20 connects to a supply end 53 of the adaptor 50. Likewise, an outlet pipe 165 connects to an output opening 156 of the valve assembly 120. The supply pipe 20 provides fluid, such as air, gases, water, or other liquids to the adaptor 50. The supply pipe 20 may be made from PEX pipe or other flexible pipes or tubes.

(18) The adaptor 50 will now be described in greater detail. The adaptor 50 includes the supply end 53, which connects to the supply pipe 20. The supply end 53 includes an external diameter 56 that fits inside of a pipe end 23 of the supply pipe 20. Ridges 59 extend from the external diameter 56 of the adaptor 50 and engage an internal diameter 25 of the pipe end 23. The supply end 53 may include a plurality of the ridges 59. The pipe end 23 may frictionally engage to supply end 53 via the ridges 59.

(19) The adaptor 50 further defines an internal diameter 62 that provides for fluid flow through the adaptor 50. The supply end 53 is integral with or transitions into a transition region 65. The transition region 65 is generally positioned between the supply end 53 and a receiving end 68 of the adaptor 50. The adaptor 50 may include the supply end 53 generally opposite of the receiving end 68. In other aspects, the receiving end 68 may be oriented generally perpendicular or at a variety of different angles relative to the supply end 53.

(20) The receiving end 68 includes a threaded external diameter 71. Opposite of the threaded external diameter 71, the receiving end 68 includes an internal diameter 74 that forms an internal sealing surface 77. The internal diameter 74 is generally smooth through the internal sealing surface 77. The transition region 65 further includes an interior corner 80 positioned on the inside of the receiving end 68 proximate to the transition region 65.

(21) The connecting device 90 is rotatably engaged to an insert end 123 of the valve assembly 120. The insert end 123 of the valve assembly 120 forms a male part that inserts into the receiving end 68 of the adaptor 50. The connecting device 90 threadably engages to the threaded external diameter 71 of the receiving end 68 of the adaptor 50. Although the connecting device 90 is exemplified as a nut in FIGS. 1-13, the connecting device 90 may include any number of devices that maintain the seal between the insert end 123 and the adaptor 50.

(22) The connecting device 90 includes walls 93 extending from a first end 105 to a second end 108. The walls 93 define or form a threaded internal diameter 94. The walls 93 include an external surface 99 that may include any of a variety of scallops 102 or other gripping regions or surfaces.

(23) The connecting device 90 is held in the rotational engagement to the insert end 123 via a retaining ring 113. The retaining ring 113 circumscribes the insert end 123. The second end 108 of the connecting device 90 includes a groove 96 that receives the retaining ring 113, and a shoulder 110 of the second end 108 prevents the connecting device 90 from being pulled from the insert end 123. Until tightened to the adaptor 50, the connecting device 90 may freely rotate relative to the insert end 123.

(24) An annular gap 111 is formed between the threaded internal diameter 94 of the connecting device 90 and the insert end 123 of the valve assembly 120. This annular gap 111 forms a space or void that is sized to receive the receiving end 68 of the adaptor 50. This annual gap 111 may extend approximately from the groove 96 holding the retaining ring 113 to the interior corner 80 of the adaptor 50. The insert end 123 forms a sealing surface 126, which may include one or more grooves 129. The sealing surface 126 may be generally smooth between the one or more grooves 129. The sealing surface 126 may have intermittent smooth surfaces that form the sealing surface 126. The grooves 129 may retain or include o-rings 141 that form a seal between the sealing surface 126 of the insert end 123 and the internal sealing surface 77 of the receiving end 68 of the adaptor 50. The insertion of the insert end 123 into the receiving end 68 of the adaptor 50 forms a sealing engagement between the internal sealing surface 77 of the receiving end 68 of the adaptor 50 and the sealing surface 126 of the insert end 123. The connecting device 90 holds the internal sealing surface 77 of the receiving end 68 of the adaptor 50 to the sealing surface 126 of the insert end 123 in the sealing engagement. During normal operation, the connecting device 90 prevents this sealing engagement from becoming unsealed.

(25) The insert end 123 further defines a fluid passage 135 for fluid flow to flow through the valve assembly 120. An end portion 138 of the insert end 123 may abut or contact the interior corner 80 of the transition region 65 to indicate that a full seal has been achieved or that the connecting device 90 is fully tightened to prompt the user to stop rotating the connecting device 90.

(26) The connecting device 90 also shrouds the o-rings 141 on the insert end 123. The connecting device 90, in this way, protects the o-rings 141 during shipping and/or before final installation. A scarred or damaged o-ring 141 might failleading to leaks and costly repairs. The connecting device 90 also shrouds the sealing surface 126 of the insert end 123. The connecting device 90 protects the sealing surface 126 during shipping and/or before final installation. Scarring or damage to the sealing surface 126 or debris on the sealing surface 126 might cause improper sealingalso leading to leaks and costly repairs.

(27) The valve assembly 120 further includes a valve 150 positioned between the insert end 123 and the output end 155. A valve handle 144 may operatively engage the valve 150. A connector 153 may pass through the valve handle 144 and into an opening 147 of the valve assembly 120 to fix the valve handle 144 to the valve 150.

(28) The output end 155 includes the output opening 156 that connects to the output pipe 165, which may be made from PEX pipe or other flexible pipes or tubes. A pipe end 168 of the output pipe 165 includes an internal diameter 171 that may fit over and engage an external diameter 159 of the output opening 156 of the output end 155 of the valve assembly 120. A plurality of ridges 162 on the external diameter 159 may frictionally engage to the internal diameter 171 of the pipe end 165.

(29) The test cap fitting 20 will now be described with reference to FIGS. 4 and 5. The test cap fitting 20 includes a test cap 174 and the connecting device 90. The test cap fitting 20 engages with the adaptor 50. The test cap 174 includes an insert end 175 and a sealed end 189. Walls 177 extend between the insert end 175 and the sealed end 189. The walls 177 form an exterior sealing surface 180. The walls further form a groove 183 that may hold or contain an o-ring 186. An annular ring 192 positions the connecting device 90 on the test cap 174.

(30) As the connecting device 90 is rotated, the internal sealing surface 77 of the adaptor 50 and the sealing surface 180 of the test cap 174 are held together in a sealing arrangement. The connecting device 90 may be rotated drawing the receiving end 68 into an annular gap 195 between the sealing surface 180 and the threaded internal diameter 94 of the connecting device 90.

(31) The annular gap 195 is formed between the threaded internal diameter 94 of the connecting device 90 and the insert end 175 of the test cap 174. This annular gap 195 forms a space or void that is sized to receive the receiving end 68 of the adaptor 50. This annular gap 195 may extend approximately from the annular ring 192 to the interior corner 80 of the adaptor 50. The insert end 175 forms a sealing surface 180, which may include one or more grooves 183. The sealing surface 180 may be generally smooth between the one or more grooves 183. The sealing surface 180 may have intermittent smooth surfaces that form the sealing surface 180. The grooves 183 may retain or include o-rings 186 that form a seal between the sealing surface 180 of the insert end 175 and the internal sealing surface 77 of the receiving end 68.

(32) The test cap 174 protects both the threaded external diameter 71 on the receiving end 68, and, more importantly, the test cap 174 protects the internal diameter 74 and sealing surface 77 of the adaptor 50, which helps to ensure a proper seal and a quality, leak free combination.

(33) The adaptor 50 may formed from thermoplastics, such as glass filled nylon, polyethylene, polypropylene, or acrylonitrile butadiene styrene. The connecting device 90 may formed from the same or similar materials.

(34) The connecting device 90 for engaging the adaptor 50 to the valve assembly 120 or to the test cap 174 may include any of variety of devices, such as nuts, threaded connectors, push-pull connectors, snap connectors, quarter or half turn nuts, etc. The connecting device 90 holds or maintains the sealing engagement between the adaptor 50 and the valve assembly 120 or to the test cap 174.

(35) The adaptor 50 may be configured to engage with other conventional types of plumbing supply lines, for example, sweat, cpvc, compression, and other PEX types, etc. For example, FIGS. 8 and 9 are views of an adaptor 61 with a smooth outer surface 64 for a sweat installation. For example, FIGS. 10 and 11 are views of an adaptor 62 with a threaded surface 66 for a compression installation. For example, FIGS. 12 and 13 are views of an adaptor 63 with engagement surface 69 for a PEX installation. The adaptors 61, 62, and 63 include the receiving end 68 that is the same or similar to the receiving end 68 of the adaptor 50, and the adaptors 61, 62, and 63 operate in the same or similar manner. Although the adaptors 61, 62, and 63 are shown with the test cap 174, the adaptors 61, 62, and 63 may be used with the valve fittings 10 and 11 and other plumbing assemblies and fittings. Similarly, the output opening 156 of the valve assembly 120 may be configured to operate with other conventional types of plumbing lines, for example, sweat, cpvc, compression, and other PEX types, etc.

(36) It should be understood from the foregoing that, while particular embodiments of the invention have been illustrated and described, various modifications can be made thereto without departing from the spirit and scope of the present invention. Therefore, it is not intended that the invention be limited by the specification; instead, the scope of the present invention is intended to be limited only by the appended claims.