U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Famous Patents

William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 220/88.2 - Screen (flame arrester)


Subclass of Class 220 - Receptacles
Definition: Receptacle wherein the attachment is a body of foraminous
No. of patents: 41
Last issue date: 02/20/2007


1    
NumberTitleIssue Date
7178548Dry safety device for an inflammable gas
A dry safety device for an inflammable gas comprises a case main body having a gas passage which terminates at one end in a primary side open port connectable to a source of inflammable gas and terminates at the other end in a secondary side open port connectable to...
02/20/2007
6699035Detonation flame arrestor including a spiral wound wedge wire screen for gases having a low MESG
A detonation flame arrestor including an outer cylinder, an inner cylinder, and fill media. The outer cylinder and inner cylinder are secured to a canister flange on one end and include a domed face (cap) on the other end. On assembly, the inner cylinder ...
03/02/2004
6632261Method and apparatus for pyrophoric and other type gas line explosion suppression
A flash arrestor applicable to suppress explosions in gas lines generally, but specifically appropriate for suppressing explosions of pyrophoric gases, particularly silane in connection with integrated circuit manufacturing, has two identical flash suppre...
10/14/2003
6488048Explosion relief valve
An explosion relief valve for a confined space, more particularly for the crankcase of an internal combustion engine, includes a seat (1) which may be fitted into a boundary wall (3) of the space to be protected, a spring-loaded closure plate (4) cooperat...
12/03/2002
5500037Impact Absorber
A highly efficient impact absorber for protecting articles against destructive mechanical impact. The invention has special applicability to containers for flammable materials, scientific instruments, or other fragile mechanisms or articles which may be d...
03/19/1996
5336083Detonation arrestor with cooling section and quenching section
A detonation arrestor for a line carrying a combustible gas includes a cell housing having a portion that is directed to quenching a detonation front and a portion that is directed primarily to heat absorption so that the heat of a continuous or prolonged...
08/09/1994
5327946Fuel filling and venting device with surge protector
A liquid fuel tank filling and venting device includes a hollow body member containing a chamber, an inlet opening for supplying fuel downwardly into the chamber, a fuel outlet opening for supplying fuel from the chamber, and a vent opening connected with...
07/12/1994
5275213Fuel filling and venting device
A liquid fuel tank filling and venting device including a hollow body member containing a chamber, an inlet opening for supplying fuel downwardly into the chamber, a fuel outlet opening for supplying fuel from the chamber, and an overflow opening connecte...
01/04/1994
5246130Fuel storage apparatus
Coiled inserts formed from herringbone corrugated foil are disposed in the filler neck and vent lines of a methanol fuel tank to prevent passage of a flame into the tank....
09/21/1993
5211554Detonation arrestor with stacked plates
A detonation arrestor for a line carrying a combustible gas includes a cell housing having a particulate quenching medium composed of alumina ceramic beads. The media is held in place by a plurality of stacked plates. The detonation arrestor is symmetrica...
05/18/1993
5191990Flash gas venting and flame arresting apparatus
A flash gas venting and flame arresting apparatus for preventing damage to a closed vessel or system by flash gas formed therein. The apparatus generally includes a pressure responsive valve means for venting the flash gas and a flame arresting receptacle...
03/09/1993
5163573Explosion suppressive foil
This invention relates to an explosion suppressive foil inserted within a container charged with inflammable or explosive liquid. This explosion suppressive foil is made of an aluminum alloy foil substrate having a number of slant surfaces having cylindri...
11/17/1992
5145360Detonation arrestor
A detonation arrestor for a flare line includes a cell housing having a particulate quenching medium composed of stainless steel balls. The stainless steel balls are held in place by wire mesh and steel bars. A flame front diffusor is located on either si...
09/08/1992
5000336Explosion protection system for a container
The invention concerns a process for the manufacture of an explosion protection system for a container for inflammable liquid for gaseous substances, whereby individual sections on the surface of a foil strip that is made of a material with good heat-cond...
03/19/1991
4973451Flame arresting conduit section, combustor and method
A flame arresting method, conduit section and apparatus for the safe disposal of combustible waste gases from a source such as a reactor. The invention involves providing a waste gas conduit section with a flame-detecting chamber and one or more upstream ...
11/27/1990
4955494Fuel containment module
An above-ground storage device for volatile liquid, the device comprising a tank for storing volatile liquid, a base disposed on the ground beneath the tank, an enclosure including walls mounted on and above the base for encasing the tank, the enclosure d...
09/11/1990
4930651Storage vessel for liquefied gas at ambient temperature
Closed pressurized storage vessels for holding liquefied gases and their vapors under high pressure at ambient temperature are provided on the interior surface with a covering of porous heat-conductive material, e.g. heat-conductive expanded metal foil fo...
06/05/1990
4925053Fuel tank vaporization and explosion resistant apparatus and improved filler mass
Generally there is provided an expanded foil sheet having an array of openings in a pattern exhibiting a plurality of dimension, which sheets are rolled or stacked, such that juxtaposed openings differ in dimension, to form a thermal filler mass for a tan...
05/15/1990
4921118Manufacture of filling material
This invention concerns a process for the manufacture of filling material for hollow spaces, whereby a foil strip is at first continuously provided with intermittent longitudinal cuts and subsequently stretched in a vertical direction, as well as an arran...
05/01/1990
4767016Liquor bottle capping assembly
A liquor bottle capping assembly comprising a perforated member fixedly attachable to the liquor bottle in covering relationship with a threaded opening in the liquor bottle for preventing flame propagation into the liquor bottle; a penetration discouragi...
08/30/1988
4673098Fuel tank vaporization and explosion resistant apparatus
There is provided a closed storage vessel having a heat conductive mesh-like interior affixed to the shell of the tank in secure heat conductive contact....
06/16/1987
4597504Non-metallic container for flammable fluid and method
A container for flammable fluid has an insulating plastic container body, metallic structural handle parts carried on the plastic container, a delivery port, and a metallic screen flame arrestor positioned across the delivery port. In accordance with this...
07/01/1986
4566589Gas container
A gas container, particularly a liquid gas container, for instance a propane gas container for domestic and industrial use, is provided with flame-inhibiting and explosion-retardant properties by forming the walls of the container of aluminum or an alumin...
01/28/1986
4484690Flame arresting ventilated wall for an explosion-proof enclosure
A flame arresting ventilated wall or panel for an explosion-proof enclosure comprises a stack of aluminum sheets apertured to provide a plurality of discrete, generally parallel gas flow channels disposed in crisscross patterns across the heights and widt...
11/27/1984
4483461Flash-back arrestor for dissolved acetylene cylinders
A flash-back arrestor for dissolved acetylene cylinders wherein a cylinder gas-permeable at both ends thereof is joined to an inner end of a valve body in a dissolved acetylene cylinder in such a manner that said cylinder is communicated with a gas passag...
11/20/1984
4432465Fire rated closure plug
A low heat transfer fitting to close an opening in a fire-rated barrier includes a cover plate, a pressure plate, a radially expandible annular gripping ring between the cover plate and the pressure plate, and adjustable fasteners between the two plates t...
02/21/1984
4387829Combination breather-drain
The combination breather-drain is designed to be disposed in the bottom of an explosion proof housing to facilitate the drainage of moisture from the housing by gravity while simultaneously providing an atmospheric communication with the interior of the h...
06/14/1983
4361190Method and apparatus for providing a traversable pathway through a pool of flammable fluid
Platform elements each comprising a porous blanket material are deployed end-to-end to form a continuous traversable pathway through a pool of flammable fluid. The blanket material is heat-resistant and of thickness sufficient to prevent penetration of fl...
11/30/1982
4328901Multilayer pressure vent for explosion proof enclosures
A pressure vent for an explosion proof container. The vent allows a high flow rate of gases to pass from the container while arresting flames and cooling exiting hot gases therein. This precludes the build-up of high peak pressures inside the container. S...
05/11/1982
4271343Gas-tight molded casing for an electrical apparatus
A gas-tight molded casing of an electrical compressed gas circuit interrupter comprises a resilient and/or ductile sack shaped net embedded in the wall of the casing. The net is designed to retain the fragments of the exploded casing while permitting esca...
06/02/1981
4257852Distillation of aqueous tertiary butyl hydroperoxide
Hazards are dealt with by appropriate placement of high heat capacity flame arrestor packings at suitable zones in the flow of the process streams comprising vapors of flammable mixture containing water and more than 10 mol % tertiary butyl hydroperoxide ...
03/24/1981
4249669Containers and other liquid-holding means
A container or other liquid holding means, e.g. a pipeline, for inflammable liquids is provided with a fire-extinguishing structure. This comprises a blanket of a porous, flame-permeable, heat-resistant material, e.g. expanded metal foil, which is support...
02/10/1981
4246002Flash arrester
For use in a welding system which uses combustible gases and the like, a flash arrester comprising a main body having an opening therethrough and including a frusto-conical seat, and a ball cage body positioned in the main body and having an axial opening...
01/20/1981
4180177Pressure vent for explosion-proof electrical enclosures
A vent device for relieving pressure buildup inside an electrical enclosure due to an internal explosion of gases. A mass of stainless steel foam covers an opening in the enclosure and stops any flames or particles from escaping but provides a large equiv...
12/25/1979
4154357Fibrous structures
A water repellent thermally bonded fibrous structure is obtained by applying a silicone based water repellent finish to potentially adhesive conjugate fibres, forming a web from the fibres, and subjecting the web to a heat treatment to effect inter-fibre ...
05/15/1979
4149649Explosion-suppressive masses
An explosive-suppressive mass comprises layers of expanded metal of which each layer is arranged in a selected orientation so that its mesh strands are inclined with respect to the mesh strands of the layers adjacent thereto. This gives economic and other...
04/17/1979
4141460Fire protection means comprising a non-woven fibrous structure of thermally bonded conjugate fibers
A fuel tank for a vehicle contains therein a flame arrestor comprising a thermally bonded, non-woven fibrous structure formed from fibers comprising at least 90% potentially adhesive conjugate fibers having a decitex within the range 6 to 35, the non-wove...
02/27/1979
4108332Fire protective grease catcher
This invention is a disposable cover in combination with a framework, adjustable so as to accommodate various sizes of frying pans or the like, the purpose of which is to prevent grease or the like, from spattering outside of a frying pan or the like, whe...
08/22/1978
4087624Fire shield for electrical box
A fire shield device for use with an electrical box mounted in an opening in a building wall for inhibiting fire in the box from reaching the walls surrounding the opening. The device is formed of fire-resistant material, such as metal or fire-resistant p...
05/02/1978
4065024Safety closure for portable receptacles
A safety-adapted pivoted closure device for vessels containing volatile or flammable liquids is disclosed. The disclosed pivoted closure device has a flash arrester and safety vent, with the resulting device being positionable on a vessel, such as a porta...
12/27/1977
1    
 
Sign InRegister
Username  
Password   
forgot password?