| Patent Number |
Title Of Patent |
Date Issued |
| RE29253 |
Valve operator for butterfly valves or the like |
June 7, 1977 |
| A valve operator for controlling the movement of a valve member carried by a rotatable valve shaft of a valve. The valve operator limits the movement of the valve member between a predetermined opened position and a closed position, the valve operator being adjustable without complete di |
| D359103 |
Valve |
June 6, 1995 |
|
| D359102 |
Valve |
June 6, 1995 |
|
| 6467500 |
Ball valve locking device |
October 22, 2002 |
| A locking device for a ball valve of the type having an operating stem includes a post attached to the valve body with the post extending parallel but spaced axially from the valve stem and formed to receive a locking pin between the post and valve stem to prevent rotation of the ste |
| 5447340 |
Electrically insulated piped coupling employing a radial insulating barrier |
September 5, 1995 |
| An electrically-insulated pipe coupling includes a first tubular metal body, a second tubular metal body which has a cylindrical section and which has molded onto it an electrically-insulating covering extending over the end of the body and a portion of the cylindrical section, a cou |
| 5435179 |
Three piece handwheel having expansion mechanism for meter box or meter yoke |
July 25, 1995 |
| A handwheel expansion mechanism including a meter adapter, a handwheel body and an expansion cup. The expansion cup is slidingly engaged with the meter adapter, and the handwheel body is rotationally coupled to the meter adapter. Rotation of the handwheel body cause the handwheel body to |
| 5373889 |
Method of making a three-way fire hydrant |
December 20, 1994 |
| A three-way wet barrel fire hydrant includes an enlarged intermediate barrel section, which effectively reduces pressure loss in the fire hydrant. The hydrant barrel is formed by an improved sand molding process which requires the mold parting line of the barrel to be selected to coi |
| 5311900 |
Leak resistant plug valve |
May 17, 1994 |
| A plug-type gas valve in which a key with a radially extending passageway is supported to rotate between open and closed positions within a bore in a valve body, the passageway establishing communication between diametrically spaced inlet and outlet ports when the key is in its open |
| 5287880 |
Three-way fire hydrant |
February 22, 1994 |
| A three-way wet barrel fire hydrant includes an enlarged intermediate barrel section, which effectively reduces pressure loss in the fire hydrant. The hydrant barrel is formed by an improved sand molding process which requires the mold parting line of the barrel to be selected to coi |
| 5121772 |
Wet barrel fire hydrant with improved flow capability |
June 16, 1992 |
| A three-way wet barrel fire hydrant includes an enlarged intermediate barrel section, which effectively reduces pressure loss in the fire hydrant. The hydrant barrel is formed by an improved sand molding process which requires the mold parting line of the barrel to be selected to coi |
| 5082246 |
Gas ball valve |
January 21, 1992 |
| The present invention provides a valve assembly having a bore fitted with an operating member, whereby the operating member operatively controls a valve member to permit or prevent fluid flow through the valve assembly. The bore extends along a longitudinal axis and has a selected diamet |
| 5020934 |
Corrosion resistance for fire hydrant stem safety coupling |
June 4, 1991 |
| A corrosion resistant valve stem coupling for use in selected fire hydrants whose water valves are frequently opened and closed. The valve stem coupling is coated with a compressible, non-oxidizable, corrosion protection coating which does not oxidize and is not worn off in situation |
| 4984362 |
Method for forming a ball valve connection |
January 15, 1991 |
| A method of manufacturing a ball valve member for cooperation with a valve and a ball valve member includes utilizing a cutting tool having first and second annular cutting surfaces with one of the cutting surfaces having a smaller radius than the other cutting surface whereby a slot is |
| 4964614 |
Method for forming a ball valve connection and structure |
October 23, 1990 |
| A method of manufacturing a ball valve member for cooperation with a valve and a ball valve member includes utilizing a cutting tool having first and second annular cutting surfaces with one of the cutting surfaces having a smaller radius than the other cutting surface whereby a slot is |
| 4964613 |
Gate valve |
October 23, 1990 |
| In a gate valve, the valve member is connected to an operating stem which extends upwardly through an opening in the housing for connection to a hand wheel rotatably carried by a yoke through which a portion of the stem extends; rotation of the hand wheel is transferred to linear motion |
| 4953588 |
Dual check valve |
September 4, 1990 |
| A valve housing is provided with an interior passage therethrough with the passage having two spaced apart valve seats; a first check valve member for engaging the first valve seat has a valve stem movably carried in a hollow shaft; the second valve member is itself provided with a tubul |
| 4848730 |
Structure for sealing and affixing a cover on a valve body and method of manufacture |
July 18, 1989 |
| A valve body having an opening and a cover for closing the opening is provided with confronting sealing surfaces each having a circumferential recess of a specific shape to receive an elastic sealing ring; the sealing ring is provided with a tab which projects externally of the valve whe |
| 4842246 |
Valve seat configuration |
June 27, 1989 |
| An improved compression type valve for a fire hydrant or the like includes an improved resilient valve member for sealingly engaging a seating ring in order to control the passage of fluid through the valve. The improved valve member is provided with a first bevel extending from a side s |
| 4823977 |
Abandoning plug for hose nozzle |
April 25, 1989 |
| An abandoning plug assembly for sealing off fire hydrant ports including inner and outer retainers with a fastener connected therebetween. The inner retainer being reversible between two positions so that the assembly can accommodate port barrels of varied length using a fastener of a si |
| 4813281 |
Underground meter box |
March 21, 1989 |
| A below ground meter box for a fluid meter includes a first sleeve for placement at the bottom of a pit in which the fluid meter is located, the first sleeve having apertures for receiving fluid conduits for the fluid meter and a second sleeve of greater axial length than the first sleev |
| 4778152 |
Plug valve havig interchangeable plug member |
October 18, 1988 |
| A plug valve includes a body having an interior wall and fluid passages therethrough with the interior wall having raised ridge portions thereon located in a selected pattern for cooperation with a resilient sealing cover which is molded on a plug body so that when a selected plug body |
| 4717178 |
Frangible coupling for barrel sections of a fire hydrant |
January 5, 1988 |
| A flangible ring, for securing together the adjacent flanged ends of the upper and lower barrel sections of a fire hydrant, has two weakening grooves therein instead of the usual one. One of the grooves is conventional and located in one face of the ring just inside the circular arra |
| 4699168 |
Theft-resistant valve |
October 13, 1987 |
| A removable key operated locking device for a rotary valve includes a locking member having a tip having a selected diameter connected by a throat having a smaller diameter to a body portion which may have a slightly larger diameter than the tip portion and a predetermined length whe |
| 4690019 |
Operating wrench for tamperproof hydrants |
September 1, 1987 |
| A tamperproof fire hydrant which can only be operated with use of a special operating means or tool thus preventing the opening of the hydrant by unauthorized persons for unauthorized use. The hydrant is provided with the usual polygonal end portion of the rotatable operating nut extendi |
| 4614113 |
Water meter service installation |
September 30, 1986 |
| A water meter service installation including both a water meter and a backflow protection device, both utilizing the same water meter box. The present installation can be retrofitted to existing meter boxes in the field as an elongated tubular extension is detachably connected to the |
| 4566481 |
Tamperproof fire hydrants |
January 28, 1986 |
| A tamperproof fire hydrant which can only be operated with the use of a special operating tool thus preventing the opening of the hydrant by unauthorized persons for unauthorized use. Additionally the tubular hold-down nut for the operating nut is so designed to prevent unauthorized |
| 4554944 |
Operating wrench for tamperproof hydrants |
November 26, 1985 |
| A tamperproof fire hydrant which can only be operated with use of a special operating means or tool thus preventing the opening of the hydrant by unauthorized persons for unauthorized use. The hydrant is provided with the usual polygonal end portion of the rotatable operating nut extendi |
| 4553563 |
Relief valve assembly for use with backflow preventers |
November 19, 1985 |
| A relief valve assembly for use in backflow preventers having at least one check valve, the relief valve assembly being operable in response to changes in differential pressure across the check valve and in fluid connection downstream of the check valve for discharging liquid therefrom |
| 4523607 |
Backflow preventer apparatus |
June 18, 1985 |
| A backflow preventer apparatus designed for connection between a supply pipe having liquid under pressure and a service pipe, the backflow preventer apparatus comprising a pair of check valves in series and defining a zone therebetween, a relief valve operable upon a change in differ |
| 4506694 |
Relief valve assembly for use with backflow preventers |
March 26, 1985 |
| A relief valve assembly for use in backflow preventers having at least one check valve, the relief valve assembly being operable in response to changes in differential pressure across the check valve and in fluid connection downstream of the check valve for discharging liquid therefrom |
| 4489746 |
Backflow preventer apparatus |
December 25, 1984 |
| A backflow preventer apparatus designed for connection between a supply pipe having liquid under pressure and a service pipe, the backflow preventer apparatus comprising a pair of check valves in series and defining a zone therebetween, a relief valve operable upon a change in differ |
| 4453561 |
Check valve assembly for use in backflow preventers or the like |
June 12, 1984 |
| A check valve assembly for use in backflow preventer apparatus or the like, the check valve assembly being of the poppet valve type. The assembly includes a body member having a flow passage therethrough with an inlet and an outlet, the body member further having an annular valve seat in |
| 4409708 |
Pipe clamp with improved retaining lugs |
October 18, 1983 |
| A pipe clamp for use in encircling a pipe or main as either a pipe repair clamp or a service side outlet clamp. The pipe clamp comprises a flexible metal band made of sheet metal or the like having a gasket liner which seals with a section of the exterior of the pipe, the band being spli |
| 4407482 |
Coupling joint for telescoping tubular members |
October 4, 1983 |
| A coupling joint for releasably coupling two telescoping tubular members in sealing relationship to one another, one of the tubular members being continuously urged inwardly relative to the other tubular member whereby a seal between said members may be maintained at all times. The coupl |
| 4381020 |
Single and multiple section pipe repair or service clamps |
April 26, 1983 |
| A low profile pipe clamp for use as either a repair clamp or a service clamp with a side outlet. The pipe clamp comprises a flexible band, usually of sheet metal with a gasket material on the interior thereof, the flexible band having a pair of opposed looped ends which receive tubular |
| 4365393 |
Single and multiple section pipe repair clamps |
December 28, 1982 |
| A low profile pipe clamp for use in encircling a pipe such as a main or the like, the clamp being either a repair clamp or a service clamp with a side outlet. The pipe clamp comprises a flexible band, usually of sheet metal with a gasket material on the interior and having at least a pai |
| 4303223 |
Valve facing for sliding valve elements or the like |
December 1, 1981 |
| An improved valve facing for one member of relatively sliding gate valve members. More specifically, the improved valve facing has foamed polymeric core and an impervious and solid polymeric outer surface. This combination provides the necessary resilient and deformable characteristics f |
| 4285368 |
Pipeline stopper and pipe fitting |
August 25, 1981 |
| A pipeline stopper assembly of the expanding sleeve type for use in large diameter pipes having a transverse circular cut-out or opening therethrough. The pipeline stopper assembly cooperates with a stopper fitting secured to the pipeline so that when the assembly is inserted into th |
| 4258941 |
Service clamp for plastic pipe or the like |
March 31, 1981 |
| A service clamp for use as a fitting in tapping a hole in a main pipe and/or for supporting a branch pipe, the service clamp being particularly adapted for use when the main pipe is plastic such as polyethylene (PE) or polyvinyl chloride (PVC) although it may be used with pipe made from |
| 4227544 |
Fire hydrant with improved shoe and valve |
October 14, 1980 |
| A fire hydrant having a generally elbow-shaped hydrant shoe with an improved interior bowl configuration and an improved hydrant valve for minimizing head or flow loss of the fire hydrant between the inlet opening of the shoe and the outlet nozzle positioned on the upper portion of the |
| 4223868 |
Resilient seated gate valve |
September 23, 1980 |
| A gate valve structure for use in large diameter mains carrying fluids under high pressure, the gate valve structure being provided with an improved annular resilient seal for engaging a valve seat of the type where the valve seat provides for a face-seal and an edge-seal with interm |
| 4177826 |
Fire hydrant with improved shoe and valve |
December 11, 1979 |
| A fire hydrant having a generally elbow-shaped hydrant shoe with an improved interior bowl configuration and an improved hydrant valve for minimizing head or flow loss of the fire hydrant between the inlet opening of the shoe and the outlet nozzle positioned on the upper portion of the |
| 4162058 |
Resilient seated gate valve with improved seat arrangement |
July 24, 1979 |
| A gate valve structure for use in mains carrying fluids, the gate valve structure being provided with an improved valve seat arrangement. The gate valve includes a casing having an unobstructed through-bore and a substantially rectangular shape or elongated chamber communicating with |
| 4154259 |
Fire hydrants with improved unitized bonnet configuration |
May 15, 1979 |
| A fire hydrant having a unitized bonnet configuration or assembly which includes a bonnet member, operating mechanism, external driving attachment and lubricant reservoir and which may be installed and removed from the hydrant barrel without the loss of lubricant from the lubricant reser |
| 4141574 |
Means for locking threaded nozzles to a fire hydrant |
February 27, 1979 |
| A fire hydrant of either the "dry" barrel type or the "wet" barrel type having an improved means of locking a replaceable hydrant nozzle to the hydrant barrel. The means for locking the hydrant nozzle to the boss of the hydrant barrel prevents removal of the nozzle by unauthorized pe |
| 4141537 |
Valve seat construction for butterfly valves |
February 27, 1979 |
| A butterfly valve assembly having a corrosive resistant metal valve seat made of stainless steel or the like and supported in the passage of the body member of the valve assembly, the valve assembly further having a valve disc with an annular resilient sealing ring fixedly secured to the |
| 4083377 |
Fire hydrant with improved weather cap and bonnet arrangement |
April 11, 1978 |
| A fire hydrant comprising a barrel member having an open upper end with an apertured type closure member detachably secured thereto, the apertured top closure member including a generally flat plate portion and a downwardly extending annular portion. The top closure member is secured to |
| 4068866 |
Stab-type joint for smooth end or flareless pipe |
January 17, 1978 |
| A joint for connecting a smooth wall pipe to fittings or other pipes, the joint including a hollow body member having a passageway therethrough, a split gripper ring positioned and movable axially within the passageway, an elastomeric sealing ring also positioned and movable axially with |
| 4057357 |
Chipless shell cutter for large diameter plastic pipe |
November 8, 1977 |
| A rotatable shell cutter member for cutting a hole in large diameter and thick wall plastic pipe. The shell cutter member is rotated and advanced with a positive predetermined lead against the plastic pipe and it first forms a hole in the plastic pipe by cutting and retaining a coupon |
| 4010930 |
Two-way rotary plug valve |
March 8, 1977 |
| A rotary plug valve having a plug member rotatable in a valve housing between an opened position and a closed position, the housing member having a valve seat therein with a first passage opening to the seat and a second passage opening to the seat, and sealing means such as an endless |
