Pressure activated trap primer and water hammer combination
First Claim
1. A water hammer arrestor and drain trap primer valve, comprising:
- A hollow pipe including an inner wall, a closed end, a discharging end, and inlet;
An outlet port connected to said discharging end and attachable to plumbing tubing;
An inlet port connected to said inlet and attachable to plumbing tubing;
An insert plug within said pipe positioned at said discharging end and at said inlet, said insert plug substantially tubular with cross-section dissimlar to that of said hollow pipe so as to allow fluid flow between said insert plug and said hollow pipe inner wall, and said insert plug including a longitudinal cylindrical bore and a latitudinal threaded through bore;
A port bolt within a portion of said insert plug and a portion of said inlet port, said port bolt substantially tubular and having a longitudinal cylindrical bore and a latitudinal through bore distributor aligned with the insert plug longitudinal cylindrical bore; and
A check piston within said pipe and slidingly engageable with said insert plug and said outlet port wherein said check piston engages slidably responsive to water pressure changes at said inlet port.
1 Assignment
0 Petitions
Accused Products
Abstract
A water hammer arrestor and drain trap primer valve includes a hollow pipe having a closed end, a discharging end, an inlet, an outlet port connected to said discharging end and attachable to plumbing tubing, an inlet port connected to said inlet and attachable to plumbing tubing, an insert plug within said pipe positioned at said discharging end and at said inlet, said insert plug substantially tubular with opposing flats, and having a longitudinal cylindrical bore and a latitudinal threaded through bore, a port bolt within a portion of said insert plug and a portion of said inlet port, said port bolt substantially tubular and having a longitudinal cylindrical bore and a latitudinal through bore distributor aligned with the insert plug longitudinal cylindrical bore, and a check piston within said pipe and slidingly engageable with said insert plug and said outlet port wherein said check piston engages slidably responsive to water pressure changes at said inlet port and an integral air gap outlet.
38 Citations
25 Claims
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1. A water hammer arrestor and drain trap primer valve, comprising:
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A hollow pipe including an inner wall, a closed end, a discharging end, and inlet;
An outlet port connected to said discharging end and attachable to plumbing tubing;
An inlet port connected to said inlet and attachable to plumbing tubing;
An insert plug within said pipe positioned at said discharging end and at said inlet, said insert plug substantially tubular with cross-section dissimlar to that of said hollow pipe so as to allow fluid flow between said insert plug and said hollow pipe inner wall, and said insert plug including a longitudinal cylindrical bore and a latitudinal threaded through bore;
A port bolt within a portion of said insert plug and a portion of said inlet port, said port bolt substantially tubular and having a longitudinal cylindrical bore and a latitudinal through bore distributor aligned with the insert plug longitudinal cylindrical bore; and
A check piston within said pipe and slidingly engageable with said insert plug and said outlet port wherein said check piston engages slidably responsive to water pressure changes at said inlet port. - View Dependent Claims (2, 3, 8, 9, 20, 21, 22, 23, 24, 25)
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4. A water hammer arrestor and drain trap primer valve comprising:
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receiving means for receiving water under pressure;
distributing means for distributing water under pressure through a tubing system;
pressure responsive means for accepting distributed water and upon pressure changes for channeling distributed water; and
discharging means for discharging distributed water from pressure responsive means. - View Dependent Claims (10, 11)
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5. A water hammer arrestor and trap seal primer, comprising:
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an inlet connected to system plumbing, an outlet connected to drain, and an expansion chamber;
first one way sealing means permitting water flow from said inlet to said expansion chamber when inlet water pressure is rising compared to gas pressure within said expansion chamber;
second one way water tight sealing means permitting water flow from said expansion chamber to said outlet when inlet water pressure is lowering compared to gas pressure within said expansion chamber;
such that;
when inlet fluid pressure rises above gas pressure within said expansion chamber, said second one-way sealing means seals said inlet and said expansion chamber from said outlet, causing high pressure fluid to flow into said expansion chamber compressing the gas volume; and
when inlet fluid pressure subsequently drops, said compressed gas in said expansion chamber expands, causing said first water tight sealing means to seal said expansion chamber from said inlet, further causing said second water tight sealing means to open, thereby forcing fluid from said expansion chamber into said drain;
until gas pressure within said expansion chamber equals system pressure. - View Dependent Claims (12, 13)
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6. A water hammer arrestor and trap seal primer, comprising:
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water receiving means for connecting to an existing plumbing system and to a plumbing line to a trap seal;
water discharging means for connecting to an plumbing line to a trap seal;
water pressure distribution means attached to and in fluid communication with said water receiving means for receiving and distributing water under pressure; and
trap seal priming means attached to and in fluid communication with water pressure distribution means and said water discharging means for priming a trap by receiving distributed water from said water pressure distribution means and discharging said distributed water to a trap for priming. - View Dependent Claims (14, 15)
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7. A water hammer arrestor and trap seal primer, comprising:
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water receiving means for connecting to an existing plumbing system and to a plumbing line to a trap seal;
water discharging means for connecting to an plumbing line to a trap seal;
water pressure distribution means attached to and in fluid communication with said water receiving means for receiving and distributing water under pressure;
trap seal priming means attached to and in fluid communication with water pressure distribution means and said water discharging means for priming a trap by receiving distributed water from said water pressure distribution means and discharging said distributed water to a trap for priming; and
,an integral air gap separater in fluid communication with and disposed between said water discharging means and said trap seal.
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16. A water hammer arrestor and trap seal primer, comprising:
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a side inlet connectable to system plumbing, a bottom outlet connectable to a plumbing drain trap, said bottom outlet including an integral air gap, and an expansion chamber located above said side inlet and said bottom outlet;
a distributor interposed between, and in fluid communication with, each of said side inlet, said bottom outlet and said expansion chamber, said distributor including an internal channel and one or more external channels;
a check piston within said distributor internal channel disposed between said side inlet and said bottom outlet, said check piston including a one-way seal allowing flow from said internal channel to said external channels;
wherein, when system plumbing pressure exceeds gas pressure in said expansion chamber, said check piston seats against said bottom outlet, and said one-way seal permits water flow from said internal channel to said expansion chamber via said external channels, thereby reducing pressure in said system plumbing by trapping a volume of water;
and further wherein, when system plumbing pressure decreases to less than expansion chamber gas pressure, said check piston seats against said internal channel, thereby porting said received water volume exclusively to said bottom outlet via said external channels. - View Dependent Claims (17, 18)
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19. A water hammer arrestor and trap seal primer, comprising:
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an inlet connectable to a plumbing system;
an expansion chamber above said inlet;
an outlet below said inlet, said outlet connectable to a plumbing system drain trap, and said outlet including an integral air gap;
first check valve means between said inlet and expansion chamber permitting rapid inflow of water due to water pressure event, but preventing flow from expansion chamber to inlet;
second check valve means between said expansion chamber and said outlet;
such that when fluid pressure at said inlet rises above gas pressure in said expansion chamber as in a water hammer event, said first check valve means allows water inflow into said expansion chamber, thereby reducing plumbing system pressure caused by a water hammer event, and further wherein, said second check valve means prevents flow from said expansion chamber to said outlet;
and, such that when fluid pressure at said inlet drops below gas pressure, said first check valve means prevents return flow from said expansion chamber into said inlet and said second check valve means permits water flow from said expansion chamber to said outlet, thereby directing water received during a water hammer event to drain and preventing a reflected water hammer event.
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Specification