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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7380524 | Water heater chamber wrap The present invention relates generally to an insulation wrap for a water heater tank including a strip of nonflammable fibrous material having an opening therein and a fibrous material element outlining at least a portion of that opening. In addition the present in... | 06/03/2008 |
| 7341149 | Portable tool carrier for a gas can A portable tool carrier for a gas can includes an adjustable carrier strap adapted to surround a side surface of the gas can, a pair of adjustable support straps adapted to go over an upper surface of the gas can, and at least one pocket, wherein the at least one po... | 03/11/2008 |
| 7328876 | Cup holder insert for a console A cup holder, including a cover being formed of an elasticized piece of material and having an upper opening providing access to an interior pocket, the upper opening and interior pocket being defined by an interior side and bottom of the cover, and the cover having... | 02/12/2008 |
| 7228805 | Temperature controlled railway car A composite box structure mounted on and attached to a railway car underframe to form a temperature controlled railway car. The composite box structure defined in part by an exterior metal surface, interior side stakes and at least one layer of fiber reinforced mate... | 06/12/2007 |
| 6941898 | Combined liquid foam stop and insulator for a tank assembly The present invention relates to a combined liquid foam stop and insulator for a tank assembly including a fibrous material strip and a nonflammable insulating skirt connected to the fibrous material strip. In an alternative embodiment the invention is the liquid fo... | 09/13/2005 |
| 6904848 | Roof assembly and airflow management system for a temperature controlled railway car A roof assembly mounted on a composite box structure with an air plenum assembly attached to and extending from an interior surface of the roof assembly. The composite box structure includes a pair of end wall assemblies, a pair of side wall assemblies, a floor asse... | 06/14/2005 |
| 6898375 | Water heater electrical enclosure insert/foam dam Electrical components projecting outwardly from the storage tank portion of an electric water heater are shielded from foam insulation material being injected into an insulation space between the tank and an outer jacket portion of the water heater by a hollow, open... | 05/24/2005 |
| 6886500 | Gas fed water-heater The present invention relates to a gas fed water-heater comprising a double wall container (1) inside which a burner (2) and a tank (3) of the water to be heated are arranged. At least in the portion (5′) adjacent to the burner (2 | 05/03/2005 |
| 6588378 | Water heater bottom pad/foam dam apparatus with integrated tank support members A water heater is provided with a specially designed molded bottom pad/foam dam member formed from a crushable material, such as polystyrene, which is received in a metal bottom pan and has concentric circular grooves formed in its top side to receive cir... | 07/08/2003 |
| 6575121 | Housing for a hot water system A prefabricated housing for an external hot water system located adjacent a house wall or the like is disclosed which has walling members including two side walls and a front wall, a roof, insulating means for insulating the walling members and the roof, ... | 06/10/2003 |
| 6532907 | Containment jacket A jacket (1) is shaped to enclose at least partially a liquid storage vessel (2; 200), the jacket comprising a skin (5) arranged as a plurality of folds (20) which are capable of opening out to permit expansion of the jacket in the event of liquid escapin... | 03/18/2003 |
| 6309209 | Flash suppressor for hot water heater A flash suppressor for surrounding a gas-fired appliance, comprising a barrier for forming an enclosure around a lower portion of the appliance. The barrier has an inside wall, an outside wall and a space between the inside and outside walls. The outside ... | 10/30/2001 |
| 6290490 | Flash suppressor for hot water heater A flash suppressor for surrounding a gas-fired appliance, comprising a barrier for forming an enclosure around a lower portion of the appliance. The barrier has an inside wall, an outside wall and a space between the inside and outside walls. The outside ... | 09/18/2001 |
| 6182613 | Self-assembly water heater enclosure and kit A water heater enclosure and kit having a box-like configuration, with a top panel, a pair of opposing side panels secured to the top panel at upper ends, front and rear braces which secure the lower ends of the side panels together, and a removable acces... | 02/06/2001 |
| 6029615 | Water heater construction and fabrication method therefor A water heater including a tank, a cylindrical jacket surrounding the tank to provide an insulating space therebetween and a cover member mounted on top of the jacket to close off the top of the insulating space. An insulating wall is provided in the insu... | 02/29/2000 |
| 5924392 | Bottom pad/foam dam apparatus for water heaters A water heater is provided with a specially designed molded bottom pad/foam dam member which is placed in its bottom pan prior to placing bottom annular portions of the water heater tank and its outwardly spaced jacket structure into the bottom pan. The p... | 07/20/1999 |
| 5529177 | Humidity control device for container or container liner A humidity control system for cargo containers. The humidity is controlled by one or more panels having a supply of desiccant or moisture absorbing material which can be initially installed in the dry state to reduce humidity. The panels can be installed ... | 06/25/1996 |
| 5460290 | Water heater foam stop apparatus The storage tank portion of a water heater has an outwardly projecting threaded pipe coupling fitting and is disposed within a jacket structure that forms an enclosed insulation space around the storage tank, the outer end of the pipe coupling fitting bei... | 10/24/1995 |
| 5318821 | Container cover A container cover includes a flexible covering disposed adjacent to the exterior side wall of a container for completely covering the exterior side wall. A fastener is provided for detachably interconnecting the edges of the flexible covering to the conta... | 06/07/1994 |
| 5261555 | Insulated structure An insulated structure, typically a drum, can initially have an outer uninsulated wall of heat conductive material. The outer wall, such as the outer cylindrical wall of a drum, may then be insulated with insulation supplied as panels. Each panel covers a... | 11/16/1993 |
| 5231794 | Apparatus for providing a decorative cover for a flower pot using a collar Apparatus for providing a decorative cover for a flower pot comprising a collar wherein the collar clamps a sheet of material to the flower pot or wherein the sheet of material is connected to the collar and the collar is connectable to the flower pot.... | 08/03/1993 |
| 5209368 | Insulated tank construction and improved self positioning sealing device for use therein An insulated tank construction for a water heater, including a cylindrical tank, a cylindrical shell placed around and spaced radially apart from the tank to form an annular space, and a ring-shaped form dam disposed circumferentially at a selected positi... | 05/11/1993 |
| 5163214 | Rolling dam method for making water heater An annular resilient compressible flexible-urethane dam (10) is placed around the inner storage tank (14) of a water heater. The dam has a free-state inner diameter (24) slightly less than the outer diameter of the tank, and a free-state outer diameter (2... | 11/17/1992 |
| 5040697 | Water heater construction and sealing device therefor A water heater construction including an inner tank for containing water surrounded in spaced apart relationship by an outer shell. An outer collar of insulation material is located in the annular space between the inner tank and outer shell at a preselec... | 08/20/1991 |
| 5006379 | Litter box liner A litter box liner comprising a polyethylene bag having on one side a sheet of spun bonded non-woven nylon fibers bonded therto. The bag is pulled over a litter box with the nylon sheet extending upwardly and is pulled off the box by inverting the bag to ... | 04/09/1991 |
| 4945892 | Water heater with outer jacket dam A water heater includes a lower skirt ring (10, 50) supporting and spacing an inner storage tank (2) above a support surface (10a), and an outer jacket (42, 54) spaced outwardly therefrom to define an annular cavity space (22) therebetween. The outer jack... | 08/07/1990 |
| 4878482 | Insulated fluid storage unit and method of making A hot water storage unit includes an outer decorative shell with a hardened foam insulation within a cavity therebetween. A prefabricated bottom wall is secured between the opposed sidewalls of the tank and shell. The bottom wall is secured just above the... | 11/07/1989 |
| 4872420 | Disposable cat litter system A disposable cat litter box is disclosed comprising a liner pan for receiving cat litter, with the liner pan having an open top, bottom and sides and cat litter disposed in the liner pan. A disposal bag having an opening at least equal to the bottom of th... | 10/10/1989 |
| 4732111 | Disposable litter box A disposable litter box for pets is presented having a folded plastic sleeve which extends to enclose the litter box for sealing and sanitary purposes after use. The box can be placed within a permanent housing and upon withdrawal of the box from the hous... | 03/22/1988 |
| 4687118 | Foam insulated tank A method of manufacturing a foam insulated water heater of the type having an inner tank, a layer of insulating foam material surrounding the inner tank and an outer protective shell includes, in one embodiment, the steps of (1) forming a flexible, expand... | 08/18/1987 |
| 4544077 | Liquid container A liquid container having a container body provided with an open top. A slot extends through the side wall of the container body, and a liner of liquid absorbing material surrounds the outer surface of the container body and covers the slot. A top cover i... | 10/01/1985 |
| 4527543 | Water heater construction A water heater including a tank, a cylindrical jacket, surrounding the tank to provide an insulating space therebetween and a cover member mounted on top of the jacket to close off the top of the insulating space. An insulating wall is provided in the ins... | 07/09/1985 |
| 4445624 | Tanks for transporting liquids A transportable tank for liquids is mounted in a supporting frame. The tank is covered with a detachable insulating jacket which is formed in section comprising a layer of insulating material enclosed within inner and outer skins of weather-resistant fabr... | 05/01/1984 |
| 4438849 | Package for protecting a generally rectangular parallelpiped article A package having four component parts for protecting generally rectangular parallelpiped articles. This package comprises an inner liner or collar unit, an outer carton and two reinforcing ribs or fillers. The inner liner encircles the article being prote... | 03/27/1984 |
| 4099641 | Pressure tank for hot-water heaters A pressure tank, particularly for hot-water heaters, with a synthetic liner and a glass fiber wrapping reinforcing it. The glass fiber wrapping is fixed to individual positions of the liner by means of synthetic material located at these positions. At the... | 07/11/1978 |
| 4039098 | Thermal insulation jacket for water heaters A thermal insulation jacket for hot water heaters includes a one-piece disc portion for the top of the heater and a wrapper for the body of the heater. Both the disc and wrapper are made of fiberglas and are held on the heater with strips of tape. The dis... | 08/02/1977 |
