| Patent Number |
Title Of Patent |
Date Issued |
| D359103 |
Valve |
June 6, 1995 |
|
| D359102 |
Valve |
June 6, 1995 |
|
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 3995655 |
Apparatus for and method of making a service line connection through a fitting |
December 7, 1976 |
| An apparatus and method for opening a flow-way in a main when the main is to be connected to a secondary main or service line. The apparatus includes a fitting arranged to be at least temporarily secured to the main, the fitting being provided with a cutter member for preliminarily c |
| 3977066 |
Pipefitting securing tool |
August 31, 1976 |
| A tool for inserting a plastic pipe in a substantially axial direction into a stab-type coupling joint fitting or the like without damaging the exterior of the plastic pipe. The coupling joint fitting may be of the type having means therein for gripping the plastic pipe upon insertion of |
