Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7370988 | In-grade light fixture housing and hydrological barrier plate for use therein A hydrological barrier plate for in-grade light fixture housings and a housing for use with light fixtures to prevent water entry into the water sensitive compartments of the light fixture. The barrier plate has a plate body with an opening in which is sealably disp... | 05/13/2008 |
| 7350453 | Hydraulic cylinder with rotatable gland A hydraulic cylinder having a gland that is rotatable relative to the cylinder tube, the pivotal connection provided by a pair of aligned annular grooves on the gland and the cylinder tube, a key slot located through the cylinder tube, and a key positionable through... | 04/01/2008 |
| 7341161 | Closure for a pressure vessel and method A closure assembly 10 contains positive and/or vacuum pressure within a pressure vessel 16 having a neck 12. A circumferential locking member 22 supported on a door 20 locks the door to the neck, and is radially moveable between an... | 03/11/2008 |
| 7243962 | One piece locking belt A locking belt is used with a container having an annular end portion defining a top opening and a removable cover overlying the opening. The locking belt comprises a split circular ring, generally U-shaped in cross section, having first and second ends and includin... | 07/17/2007 |
| 7213424 | Rotation restricted locking apparatus and method The present disclosure relates to preventing rotation of a barrel lock when opened by a key. At least one example embodiment includes a rotationally actuated barrel lock for securing electric meter boxes and the like, and a spring loaded clip for mounting inside the... | 05/08/2007 |
| 7178686 | Rotationally molded subterranean tank with riser A subterranean tank assembly is provided which broadly includes a vessel, a cover, and a riser which is configured to permit the riser to be adjusted in axial length at the job site. The riser is configured to permit coupling of the cover to the topmost connector po... | 02/20/2007 |
| 7140211 | Tamper detection security for a tank trailer This invention relates to a security system aimed at closing and locking a cover of an opening of a tank trailer to avoid any tampering of its content and to prove that the content of the tank has not been tampered. The security system comprises a locking member mov... | 11/28/2006 |
| 7140477 | Automatic parking brake for a rail vehicle A parking brake for a rail vehicle can automatically lock the rail vehicle brakes in an applied position, such as by clamping the brake cylinder push rod to prevent retraction from an applied position to a release position. An actuator can operate the parking brake,... | 11/28/2006 |
| 7083065 | Tank assembly A polymeric tank assembly is provided having a polymeric container with a neck opening. A ring with protruding barbs is inserted within the neck opening and the neck opening is placed in compression by a surround collar. The ring can be connected with clamping arms ... | 08/01/2006 |
| 7051897 | Closure for a pressure vessel and method A closure assembly 10 contains positive and/or vacuum pressure within a pressure vessel 16 having a neck 12. A circumferential locking member 22 supported on a door 20 locks the door to the neck, and is radially moveable between an... | 05/30/2006 |
| 6598330 | Sling attachment hardware for firearms The present invention relates to hardware used to secure slings to firearms. In particular, to hardware used to secure slings to firearms like that of the M16A2 and M4 Carbine that are fitted with a Picatinny type rail and collapsible buttstock. A wedge/y... | 07/29/2003 |
| 6533288 | Flange seal assembly A flange seal assembly for a multi-layered plastic fuel tank having a wall with a permeation barrier layer encapsulated by inner and outer layers. The wall is blow molded about a ring so that the outer layer alone is in actual contact with the ring. The p... | 03/18/2003 |
| 6443507 | Clamping straps with safety mechanism for container covers A method and container for transporting and storing chemical compounds susceptible to exothermic decomposition. The method including placing the chemical compounds in a container where the opening and the rim of the container are sealed by means of a cove... | 09/03/2002 |
| 6439010 | Ring-type meter lock A ring-type meter lock including a resilient ring, first and second ends on the ring, a lock housing on the first end, a first slot in the lock housing, a latch unit in a threaded bore in the lock housing, the latch unit consisting of a threaded plug and ... | 08/27/2002 |
| 6435576 | Closure ring assembly for an open-head drum An annular closure ring and bolt assembly for securing a lid or cover in sealed relation with an open-head drum is provided in which an annular split closure ring is closed by tightening a bolt between a pair of laterally spaced lugs attached to opposite ... | 08/20/2002 |
| 6406074 | Destructible locking device A locking device is disclosed for interlocking two members having aligned openings extending therethrough. The device includes a hollow cap and a pin with an enlarged head at one end and a nose at the opposite end. The pin is insertable through the aligne... | 06/18/2002 |
| 6401958 | Lid closure system A pressurized vessel having a quick release lid closure system for clamping a vessel lid to a vessel container comprises an open hoop with spaced apart ends. The hoop carries a plurality of spaced apart clamped blocks which having wedge-shaped channels fo... | 06/11/2002 |
| 6367851 | One piece meter locking ring for use with multiple locks A locking ring includes an annular ring portions with a U-shaped cross section. The locking ring serves to retain an electric meter in its meter socket in a manner which is well known. Both ends of the ring portion terminate in front housings, each housin... | 04/09/2002 |
| 6126213 | Container clamping ring with improved lever and thumb latch A lever and latch assembly for a split ring for securing a cover on a drum includes a bar on the lever for disposition in a pocket of latch with a snap action. An enlarged finger engaging flange on the latch facilitates movement to a latched position and ... | 10/03/2000 |
| 6066237 | Safe and semi-automatic removal of heavy drum closures In a coke drum an outlet arrangement is provided which allows removal of the coke from the drum without endangering the health or safety of workers heading or unheading the coke drum. Instead of using a manually removable bottom flange for the drum, a sem... | 05/23/2000 |
| 6032989 | Meter locking ring for use with multiple locks A locking ring includes two semi-annular ring portions with a U-shaped cross section. The locking ring serves to retain an electric meter in its meter socket in a manner which is well known. Both ends of each ring portion terminate in housings, each housi... | 03/07/2000 |
| 5908210 | Automated flange retaining clamp with redundant fasteners The present invention relates to an apparatus for securely fastening joints in pressure vessels, pipes, and other structures intended to isolate internal volumes from the external environment. It can join a blank cover to a pressure vessel or it can join ... | 06/01/1999 |
| 5876568 | Safe and semi-automatic removal of heavy drum closures In a coke drum an outlet arrangement is provided which allows removal of the coke from the drum without endangering the health or safety of workers heading or unheading the coke drum. Instead of using a manually removable bottom flange for the drum, a sem... | 03/02/1999 |
| 5853207 | Device for joining and sealing together two enclosures isolated from an external environment A device for joining and sealing together two isolated enclosures has two doors. Each enclosure has one door. The two doors are provided with cooperating joining means. One enclosure is of the single use type and includes final locking means for its own d... | 12/29/1998 |
| 5836627 | Housing and securing device A locking device for use with a conventional liftgate support to retain a hatchback-type door of a vehicle in an open position. The locking device of the present invention is for use with a liftgate support to retain a hatchback-type door in an open posit... | 11/17/1998 |
| 5829624 | Protective shoe for open top metal containers A container securing system is provided for a round container having an upper rounded rim and an open end and a cover receivable on the open end, the cover having a rounded lip. A locking ring formed of a rounded strip is provided engaging the lip and rim... | 11/03/1998 |
| 5700043 | Disconnectable connecting device for two components with a non-circular outline, particularly oval To ensure the disconnectable connection of two components with a non-circular outline, in particular an oval outline, a rotatable ring of oval shape is fitted on a first component, cooperating with a second component by a bayonet system. Rotation of the r... | 12/23/1997 |
| 5638706 | Securing mechanism This invention relates to a securing mechanism in the form of a clamp, said securing mechanism also incorporating a locking mechanism which when in locked form prevents the clamp from being readily opened. In preferred embodiments the securing mechanism i... | 06/17/1997 |
| 5542722 | Tamper resistant meter locking ring A locking ring includes an annular split ring portion with a U-shaped cross section and resiliently separable end portions, with each end formed into an L-shaped wall portion terminating in a serration. When the ends of the locking ring are brought togeth... | 08/06/1996 |
| 5538299 | Housing and securing device A locking device for use with a conventional liftgate support to retain a hatchback-type door of a vehicle in an open position. The locking device of the present invention is for use with a liftgate support to retain a hatchback-type door in an open posit... | 07/23/1996 |
| 5529353 | Sealing device for electrical meter A sealing device for an electrical meter includes a positioning ring and a fragile outer ring. The positioning ring is integral with an upper end of a meter socket and includes an oblique circular upper end which inclines outwardly, an outer peripheral wa... | 06/25/1996 |
| 5499159 | Mating ring for a watthour meter cover A mating ring for mounting a meter cover to a meter base includes a molded plastic mating ring having portions configured to engage the meter cover flange and portions configured to engage the meter base. A plurality of wedges and opposing ring flanges ar... | 03/12/1996 |
| 5421473 | Heat resistant plastics container closure A plastics container (10) for hermetically sealed unrefrigerated storage of perishable food that is capable of retaining the hermetic seal during steam retort cooking and sterilizing at temperatures up to 130° C. The container has a body (12) and cover (... | 06/06/1995 |
| 5378030 | Keyless locking device and method A progressively set of more costly and higher level keyless locking devices secure an electric utility meter. A first low level and low cost keyless device includes a female member with spaced resilient legs which compressively converge when inserted in a... | 01/03/1995 |
| 5333747 | Method and apparatus for securing a draw band to a drum A tamper proof draw band bolt apparatus and method including a bolt for extending through the apertures in the first and second lugs of a draw band, the bolt including a shaft having a first end and a second end, the shaft of the bolt having a threaded po... | 08/02/1994 |
| 5329971 | Closet flange test plug An apparatus for sealing the central opening in a conventional closet flange extending perpendicular to a drain pipe. A generally disk-shaped sealing member is connected to the lower end of a threaded shaft screwed through an intermediate hub in a diametr... | 07/19/1994 |
| 5207463 | Fuel sender locking ring A locking member for use in a fuel tank assembly of the type having a pressurizable tank with an aperture and having a plurality of retaining lugs transversely extending along the periphery of the tank aperture. A fuel sender assembly has a first portion ... | 05/04/1993 |
| 5121953 | Locking ring assembly for utility meters A locking ring assembly of the type employed to prevent unauthorized access to a meter, comprising a split ring retaining ring, to one end of which a housing is secured; the housing having a lock receiving opening and a side opening therein; a ring clip w... | 06/16/1992 |
| 5102172 | Fuel sender locking ring A locking member for use in a fuel tank assembly of the type having a pressurizable tank with an aperture and having a plurality of retaining lugs transversely extending along the periphery of the tank aperture. A fuel sender assembly having a first porti... | 04/07/1992 |
| 5048881 | Lockable seal ring for an electrical meter A one-piece seal ring for locking an electrical watt-hour meter into the socket of a meter base. The seal ring includes a locking mechanism which once locked cannot be unlocked without cutting or breaking a portion of the lock. The seal ring and locking m... | 09/17/1991 |
