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

Icon_funbox Bizarre Patents

Patent No. 5571247

Self Containing Enclosure for Protection from Killer Bees

A self contained protective enclosure with an opening for entry and egress and a screen for ventilation and viewing.

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 89/16 - Composite


Subclass of Class 89 - Ordnance
Definition: Gun barrels built up or formed of more than one piece.
No. of patents: 89
Last issue date: 03/04/2008


    3  
NumberTitleIssue Date
4401729High-strength ceramic laminated tube and the production and use thereof
A high-strength ceramic laminated tube comprising an inner tube of ceramic material and at least one outer tube of a metal or ceramic material shrunken onto the inner tube is provided, e.g., a ceramic tube capable of withstanding the mechanical stresses w...
08/30/1983
4259892Cartridge-holder
In order to use cases for firearms of various materials such: aluminum, (which is inexpensive), brass, iron and to facilitate use of greater pressure while insuring reliable operation of the gun, this invention proposes the use of divided holders fixed in...
04/07/1981
4211146Rifle gun barrel
To increase the strength, rigidity and accuracy of a rifle gun barrel, a multi-part composite rifle barrel is created by enclosing the inner rifled tube with an outer sleeve, the two fastened together in a way that introduces compression in the outer part...
07/08/1980
4153282Coned joint for joining dissimilar diameter filament wound tubes
A coned joint for the purpose of structurally joining two filament wound bes, having dissimilar diameters, into a single launch tube. After being joined together, the assembled tubes have a straightness equal to or better than a comparable rolled or fabri...
05/08/1979
4137351Filament/epoxy camouflage launch tubes
Filament/epoxy camouflage launch tubes in which the launch tubes are fabrted using conventional filament winding processes and materials and in which each tube is bonded together with an epoxy resin system in which the epoxy resin system includes colorin...
01/30/1979
4104953Machine gun barrel for firing blanks
A machine gun barrel for firing blanks comprising a reclaimed quick discoct barrel with a one piece blank firing attachment with diminished orifice replacing the flash suppressor and threadedly mounted over the barrel end provides gas build-up necessary ...
08/08/1978
4075926Gun barrel
Existence of cracks through the liner of a gun barrel is determined by sizing the outer tube of the barrel to expand and jam in the recoil jacket in response to pressure between the liner and the tube; or by providing electrical conductors between the tub...
02/28/1978
4061433Extension rod for percussive drilling tool
A composite extension rod for coupling a drilling tool and a hammer which is located outside of the drill hole and has a central tube surrounded by parallel high strength rods and an outer sheath which has coupling sleeves at its ends....
12/06/1977
3943821Cartridge chamber for automatic firearm
In an automatic firearm, the cartridge chamber at the barrel end is assembled of two elements and the interface between them is gas pressure sealed. Each element has a different number of gas pressure balance grooves leaving a minimum of support surface f...
03/16/1976
    3  
 
Sign InRegister
Username  
Password   
forgot password?