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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 7775390 | Cooking vessel The invention relates to a cooking vessel (1), particularly a steam pressure cooker, comprising a pot-like container and a lid (3) provided for pressure-tight sealing of the container. The container displays a circumferential, outwardly bent or flanged... | 08/17/2010 |
| 7350827 | Cam expansion ring assembly An expansion ring assembly and method for sealingly installing a gasket within an opening in a wall of a structure. The expansion ring assembly includes an expansion ring having first and second adjacent end portions, and first and second cam members are rotatably c... | 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 |
| 7331104 | Device for the assembly of standard elements intended for the creation of precision mechanical structures A device for the assembly of at least two standard elements of a precision mechanical structure by a linking element, where the first standard element includes a reference surface, while the second standard element includes a bearing surface which has to be position... | 02/19/2008 |
| 7216459 | Access hatch cover assembly with lift-assist assembly and method therefor A hatch cover with spring assembly to assist in lifting open the hatch cover lid. The lid is hinged to a frame so it can be rotated about the hinge to an open position. A spring or a pair of springs are attached to the underside of the lid. Each spring is a torsion ... | 05/15/2007 |
| 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 |
| 7137525 | Sealable container lid A container lid that is easily sealed to prevent air and other environmental agents from infiltrating the covered container and its contents and to accommodate storage of tools such as paintbrushes or paint rollers. The lid includes a base and lip and a strap surrou... | 11/21/2006 |
| 7104722 | Manhole cover A manhole cover includes a cylindrical manhole including manhole lugs, wherein the manhole lugs extend around the upper outer periphery of the manhole; the cover includes cover lugs, the cover lugs extend around the outer periphery of the cover. The cover co-operati... | 09/12/2006 |
| 7055708 | Child-resistant package A child resistant package includes a container having a finish with at least one external thread and at least one pocket in an undersurface of the thread. A closure for receipt on the finish of the container has a base wall, a skirt with an axis, at least one intern... | 06/06/2006 |
| 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 |
| 6959831 | Gasketless drum A reusable sealable plastic drum incorporates a plastic drum body with a convex upper chime having a convex chime radius, a plastic lid having an annular, peripheral mating channel sized to accept the upper chime, ... | 11/01/2005 |
| 6884325 | Sealable lid for vacuum distillation apparatus A sealable lid assembly for a vacuum distillation apparatus has a lid pivotally and telescopically mounted to the vacuum distillation apparatus. Spaced-apart wheels are rotatably mounted to the lid. Tracks are disposed on the vacuum distillation apparatus in a posit... | 04/26/2005 |
| 6540097 | Cooking vessel A cooking vessel has a container having an encircling container margin bent outwardly and with a cover having an encircling cover margin bent outwardly. The container can be closed airtight by the cover with the aid of a closing mechanism acting on the co... | 04/01/2003 |
| 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 |
| 6164481 | Paint roller spin spray shield for buckets A spin spray shield connected with a bucket to thereby assist the bucket to retain centrifugal paint spray when a roller is cleaned with a spinning tool, without detracting from the funtionality of the bucket for other purposes. The spin spray shield gene... | 12/26/2000 |
| 6019240 | Fiber board drum with plastic chime assembly A chime assembly shaped to fit on the upper opening of a drum to receive a top and a closing ring. The chime assembly comprises a top chime having a lower band with a slot shaped to receive the upper opening of a drum. The top chime has a top flange and a... | 02/01/2000 |
| 5947320 | Molded drum, lid and ring-clamp system with enhanced containment integrity A closure system including a polymeric split ring clamp and a polymeric lid for a polymeric drum. To maintain the integrity of the closure, the lid rim region is formed having an annular restraining notch which cooperates with twist inhibiting blocking co... | 09/07/1999 |
| 5941406 | Lidded barrel with barrel lid and clamping-ring closure The object of this invention is a lidded barrel with a barrel lid and a clamping-ring closure. Between its flat lid plate and its outer rim, the barrel lid is provided with a circular, perimetric groove while also featuring in its periphery at least one b... | 08/24/1999 |
| 5906289 | Cover for a container The cover is intended for a container with an angled rim and has a sealing mechanism acting peripherally on the edge of the container. There is, around the edge of the cover, an open elastic metal sealing ring exerting a spring force which increases with ... | 05/25/1999 |
| 5839598 | Combination lid and spill tray A blow molded combination lid and spill tray has a top wall and a downwardly depending skirt thereabout, the top wall formed from a pair of upper and lower circular walls. The upper and lower circular walls have a central feed circular recess, plurality o... | 11/24/1998 |
| 5823340 | Sterilization container The invention concerns a sterilization container which is preferably intended for hospital waste and is formed by a bin (1) having a filler opening, which is delimited by the upper edge of the side wall (5) of the bin and is opposite the base (4) thereof,... | 10/20/1998 |
| 5785201 | Molded lid with wave configured central portion A molded lid having an intermediate region configured as a sequence of waves, each of curved cross-section forming successively occurring crests and troughs, and exhibiting amplitudes increasing in value from the lid center toward the rim. The waves termi... | 07/28/1998 |
| 5762227 | Spreadable circular clamp ring and salvage drum including same A spreadable circular ring clamp has first, second and third clamp sections, which have inwardly directed upper and lower walls, which are secured together by connector strips that are secured to the outer surface of outer wall of the clamp sections. A lo... | 06/09/1998 |
| 5715965 | Hatch seal A hatch in road or rail tanker (2) includes a hatch cover (7) mounted in a flange (8) of a compartment manhole (9). In order to prevent leaks from the hatch cover (7), a band (13) is welded to the top of the tank (2) around compartment manhole (9). The ba... | 02/10/1998 |
| 5713482 | Polymeric split ring clamp A split ring clamp for retaining a lid upon an enclosure such as a plastic or fibrous drum is provided which is formed entirely of polymeric material such as a high molecular weight, high density polyethylene copolymer. The assemblage includes two parts, ... | 02/03/1998 |
| 5590802 | Salvage drum with protected clamping A salvage drum has a container body and circular lid which are sealed together by a clamp that secures an outwardly extending lip on the container body to an outwardly extending lip on the circular lid. The container body has a plurality of spaced outward... | 01/07/1997 |
| 5450844 | Locking device for the container of a gas mask and breathing equipment A container and locking device for gas tightly locking a container for gas masks and breathing equipment containing moisture-sensitive filter mass, including a first container shell and a second container shell, each container shell having outwardly proje... | 09/19/1995 |
| 5411162 | V-band coupling for an explosion-proof enclosure A V-band coupling for use on an explosion-proof enclosure. The V-band coupling includes a V-band having a toughened layer along its interior surfaces for gripping the flanges on the enclosure which the V-band engages when it is installed on the enclosure.... | 05/02/1995 |
| 5361928 | Closure assembly A closure assembly for sealingly closing the open top end of a material holding drum includes a cover and a rubber gasket. The cover has a central circular wall of a size corresponding to the drum open end and a peripheral flange which defines a downwardl... | 11/08/1994 |
| 5299707 | Welded cover lock A lock is provided for use with a container having an annular end portion defining a top opening and a radially outwardly opening annular recess. A top wall defines a removable cover overlying the opening. The lock includes an elongate band of synthetic r... | 04/05/1994 |
| 5295604 | Toggle latch A toggle latch for releasably fastening and tensioning a closure band said latch comprising, a first member for connection to an end of said band, a second member for connection with the other end of said band, a lever hingedly connected adjacent a proxim... | 03/22/1994 |
| 5284270 | Lever latch ring for securing a cover panel to a container An improved lever latch ring for securing a cover panel having a plurality of tabs thereon to a container wherein the tabs extend beneath an outwardly extending rim forming an upper margin of the container and against an outer wall thereof. The improved l... | 02/08/1994 |
| 5273194 | Beverage server There is provided a beverage server comprising a pitcher and a multiple positionable lid. The lid is capable of being disposed in three distinct positions on the pitcher, including a filling position, a pouring position, and a locked position wherein beve... | 12/28/1993 |
| 5219088 | Fixing ring for securing a closure to a container The fixing ring for securing a closure to a container includes: a ring-like body which is open at one point and which can engage the peripheral edge of a closure and the mouth of a container; a lever which is pivoted to one end of the ring-like body and w... | 06/15/1993 |
| 5131557 | Locking cover with flanged belt A flanged belt is used with a closure and a container. The closure comprises a generally circular closure wall, a generally cylindrical sidewall having an upper edge connected to the closure wall and an annular lower edge that can have generally circumfer... | 07/21/1992 |
| 5129537 | Two-piece polymeric lid clamping ring A clamping ring for retaining a lid upon an enclosure such as a fibrous drum is provided which is formed entirely of polymeric material such as a high molecular weight, high density polyethylene copolymer. The assemblage includes only two parts, a channel... | 07/14/1992 |
| 5020839 | Container tension ring closure A tension ring closure device for containers having a lever means for drawing together opposite ends of the ring for closure. The ring may be locked by means of a shackle extending from the ring through the tensioning lever and a second shackle-like loop ... | 06/04/1991 |
| 4981228 | Bottle opener and closure cap A device for opening a bottle and forming a closure cap for the bottle as a replacement for the removed crown cap. The bottle opener and closure cap includes a split metal ring that encloses a circular metal disc and resilient sealing member which are pla... | 01/01/1991 |
| 4955504 | Injection-moulded plastic lid for a container and a container having such an injection-moulded plastic lid Injection-moulded plastic lid for a container having a first container upper rim part (15) which divergently adjoins the inner wall and which adjoins, via a sharp upper rim (28), an outwardly directed, downwardly sloping second container upper rim part (1... | 09/11/1990 |
| 4890756 | Cylindrical tank with flared upper end A container for storing and transporting liquids is disclosed having features to protect the tank from damage which may result in contamination or leaking of the contents. The tank lid has upward projections in its cover member to protect an access openin... | 01/02/1990 |
