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A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7089956 | Portable gas delivery device with impact protection A portable pressurized gas delivery system with impact protection includes a pressure regulator device comprised of a shut-off valve/refill portion, a pressure regulation portion and a flow control portion. The pressure regulator device is attached via a mating mach... | 08/15/2006 |
| 6901950 | Fire hydrant locking device Fire hydrant locking devices prevent fire hydrants from being turned on without a key. A fire hydrant has a keyhole in its sidewall. A security bolt is threadedly inserted into the keyhole with one end frictionally engaging with the valve stem in the interior of the... | 06/07/2005 |
| 6247491 | Childproof cover for compressed gas valves A childproof cover for use with a compressed gas cylinder having a shut-off valve inhibits access to the valve. The childproof cover is especially intended for use with propane cylinders for barbecues. The cover includes a housing that surrounds the valve... | 06/19/2001 |
| 6089253 | Fire hydrant security systems A fire hydrant security system for mounting on a standpipe of a fire hydrant wherein the hydrant has a mounting surface with holes therethrough and a bonnet mounted on the mounting surface, the bonnet surrounding a valve operating spindle assembly. The sy... | 07/18/2000 |
| 5941274 | Method and apparatus for securing a fire hydrant or other valve devices A method and system for securing the exposed valve stem of the hydrant valve system in order to conserve valuable reserve resources and maintain street water pressure by restricting the unauthorized use therefrom; including a first device keying the expos... | 08/24/1999 |
| 5727590 | Tamper resistant construction for hydrant actuating nut A tamper resistant construction for preventing unauthorized actuation of the hydrant nut of a fire hydrant by causing any lateral pounding or upward forces applied to the tamper resistant construction to be transmitted directly to the hydrant body cover o... | 03/17/1998 |
| 5709252 | Natural gas distribution system A natural gas distribution system includes a gas cylinder having a first axial end and a second axial end. Protective collars are selectively connected to the cylinder ends. A valve is connected to the first axial end and is disposed within the first prot... | 01/20/1998 |
| 5630442 | Tamper resistant construction for hydrant actuating nut A tamper resistant construction for preventing unauthorized actuation of the hydrant nut of a fire hydrant by causing any lateral pounding or upward forces applied to the tamper resistant construction to be transmitted directly to the hydrant body cover o... | 05/20/1997 |
| 5520305 | Container and two piece safety cap having a locking collar and cover A two-piece safety cap for a container is disclosed. The safety cap comprises a collar and a corresponding cover arranged for movement between a locked position at which it cannot be removed from the collar and a removable position at which it may be read... | 05/28/1996 |
| 5295601 | Caulk cartridge cap A caulk cartridge cap is designed to enable the storage of unused portions of products of the types supplied within caulk cartridge type containers to thus maintain them in a reusable condition. The cap operates as a closure for purposes of resealing a ca... | 03/22/1994 |
| 5261559 | Gas cylinder ring assembly A ring assembly for compressed gas cylinders includes either a separate adaptor removably attachable to existing gas cylinders or, a ring member integral with the top portion of manufactured cylinders. In any case, a ring plate provides a horizontal, radi... | 11/16/1993 |
| 5158204 | Containment and diversion cap for gas cylinders Containment cap and adapter for mounting on a gas cylinder to isolate the cylinder valve from the ambient atmosphere and contain leakage from said valve. The cap can include means to receive inner-pressurization and remove contained leakage.... | 10/27/1992 |
| 5033501 | Fire hydrant cap and actuating tool therefor A fire hydrant cap and actuating tool for use therewith provide enhanced security for fire hydrants and increased safety when using the tool. The cap is forged of 8620 carbon steel; is provided with an internal steel lock washer of cadmium plate steel, an... | 07/23/1991 |
| 5004117 | Safety cylinder cap A cylinder cap and method of making the same for use with gas cylinders of standard construction to protect the cylinder valve from damage should the cylinder be knocked over or dropped. The cylinder cap is uniquely formed to allow convenient access to th... | 04/02/1991 |
| 4955404 | Method and apparatus for sealing leaking valves on compressed gas tanks A method and apparatus for sealing a leaking valve on a compressed gas tank to accomodate safe transport of the tank and valve from the place of use in the field to a repair depot where the tank and valve may be safely serviced. The apparatus comprises a ... | 09/11/1990 |
| 4884708 | Pressure vessel A pressure vessel for the storage of gas has a bottom part, a cylindrical jacket and a head part with a neck, these parts are made of a corrosionproof stainless steel having up to 0.06% C, from 1.5 to 6% Mn, from 0.3 to 1% Si, from 16 to 25% Cr, from 4 to... | 12/05/1989 |
| 4664286 | Device for the protection of cylinder valve for steel cylinders A device for protecting the gas cylinder valve of a steel cylinder has a neck ring for screwing on the protective device. The protective device is in the form of a clamp collar having a protective strap which surrounds the gas cylinder valve.... | 05/12/1987 |
| 4549568 | Valve enclosure In the preferred and illustrated embodiment of the invention, a valve enclosure is disclosed. The enclosure comprises a substantially cylindrical body open at both ends. The cylindrical body includes interior threads at each end thereof and an enlarged ce... | 10/29/1985 |
| 4103701 | Freeze-proof cap for outdoor faucet A thermally insulated freeze-proof cap which can be easily installed with a specially designed face plate on the existing outdoor faucet without dismantling any part of a faucet. The invented cap can prevent freezing of water pipe line or the like and hea... | 08/01/1978 |
