Compressed gas regulator with torque limiting attachment knob
First Claim
1. A gas pressure regulator device comprising:
- a body having a first aperture therethrough sized to receive a substantially rectangular pressure tank post valve, said body further including a mounting aperture having machining threads formed therein and in fluid communication with said first aperture, an inlet passage in fluid communication with said first aperture and an outlet passage in fluid communication with said inlet passage;
regulator means disposed in said outlet passage for reducing gas pressure presented at said inlet passage, said regulator means supplying regulated gas pressure at said outlet passage;
a threaded rod having a proximate end, a distal end and external threads formed on the lateral external surface thereof, said external threads mating with said machining threads of said mounting aperture, said proximate end of said rod being rotationally inserted into said mounting aperture of said body to secure said body to a pressure tank;
a disk attached to said distal end of said threaded rod at the radial center of said disk, said rod extending perpendicularly from one surface of said disk; and
a hollow cylindrical member having an open first end, an open second end, and having an internal diameter sized larger than said body, and wherein said first end of said cylindrical member is disposed over and around said body and said second end of said cylindrical member is attached to said disk.
1 Assignment
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Accused Products
Abstract
A compressed gas regulator for use in the medical, emergency and home health care fields is disclosed. The regulator includes a body having a rectangular aperture for receiving an industry standard post valve typically found on a high pressure gas tank. The regulator includes a mechanical attachment device for securing the regulator to the post valve. The mechanical attachment device, or knob, is cylindrical in cross-section and is hollow so that it may receive a portion of the regulator therein. The outer periphery of the knob includes a knurl pattern to aid in gripping the knob. The knob includes a threaded rod extending axially along the hollow interior of the knob. The threaded rod engages mating threads in a threaded aperture of the regulator body. Rotating the fastener urges the regulator into contact with the post valve, and a valve seat on the regulator provide a gas seal between the regulator and the post valve. The knob includes a torque limiting device that prevents over-tightening of the regulator on the tank, thereby preventing unintentional damage to the regulator.
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Citations
20 Claims
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1. A gas pressure regulator device comprising:
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a body having a first aperture therethrough sized to receive a substantially rectangular pressure tank post valve, said body further including a mounting aperture having machining threads formed therein and in fluid communication with said first aperture, an inlet passage in fluid communication with said first aperture and an outlet passage in fluid communication with said inlet passage;
regulator means disposed in said outlet passage for reducing gas pressure presented at said inlet passage, said regulator means supplying regulated gas pressure at said outlet passage;
a threaded rod having a proximate end, a distal end and external threads formed on the lateral external surface thereof, said external threads mating with said machining threads of said mounting aperture, said proximate end of said rod being rotationally inserted into said mounting aperture of said body to secure said body to a pressure tank;
a disk attached to said distal end of said threaded rod at the radial center of said disk, said rod extending perpendicularly from one surface of said disk; and
a hollow cylindrical member having an open first end, an open second end, and having an internal diameter sized larger than said body, and wherein said first end of said cylindrical member is disposed over and around said body and said second end of said cylindrical member is attached to said disk. - View Dependent Claims (2, 3, 4, 5)
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6. A gas pressure regulator device comprising:
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a body having a first aperture therethrough sized to receive a substantially rectangular pressure tank post valve, said body further including a mounting aperture having machining threads formed therein and in fluid communication with said first aperture, an inlet passage in fluid communication with said first aperture and an outlet passage in fluid communication with said inlet passage;
regulator means disposed in said outlet passage for reducing gas pressure presented at said inlet passage, said regulator means supplying regulated gas pressure at said outlet passage;
a threaded rod having a proximate end, a distal end and external threads formed on the lateral external surface thereof, said external threads mating with said machining threads of said mounting aperture, said proximate end of said rod being rotationally inserted into said mounting aperture of said body to secure said body to a pressure tank post valve, said rod further including a transverse aperture near said distal end thereof;
a resilient rod disposed in said transverse aperture of said threaded rod;
a hollow substantially cylindrical member having an open end and a closed end, said cylindrical member having an internal diameter substantially corresponding to the length of said resilient rod, said cylindrical member including a plurality of detents arranged about the inner periphery of said cylindrical member, and wherein said open end of said cylindrical member is disposed over said threaded rod so that said resilient rod engages at least one of said plurality of detents, and wherein said closed end of said cylindrical member is rotatably attached to said distal end of said threaded rod. - View Dependent Claims (7, 8, 9)
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10. A gas pressure regulator device comprising:
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a body having a first aperture therethrough sized to receive a substantially rectangular pressure tank post valve, said body further including a mounting aperture having machining threads formed therein and in fluid communication with said first aperture, an inlet passage in fluid communication with said first aperture and an outlet passage in fluid communication with said inlet passage;
regulator means disposed in said outlet passage for reducing gas pressure presented at said inlet passage, said regulator means supplying regulated gas pressure at said outlet passage;
a threaded rod having a proximate end, a distal end and external threads formed on the lateral external surface thereof, said external threads mating with said machining threads of said mounting aperture, said proximate end of said rod being rotationally inserted into said mounting aperture of said body to secure said body to a pressure tank;
a hollow cylindrical member having an open end and a closed end, and having an internal diameter sized larger than said body, and wherein said open end of said cylindrical member is disposed over and around said body; and
means for limiting torque disposed between and attached to said distal end of said threaded rod and said cylindrical member, said means for limiting torque transmitting no more than a predetermined amount of tightening torque from said cylindrical member to said threaded rod. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification