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

Icon_funbox Bizarre Patents

Patent No. 5265827

Paddle Wheel Plane

An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.

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 131/227 - Stems, bits or tips


Subclass of Class 131 - Tobacco
Definition: Smoking devices claiming the structure of the stem, including
No. of patents: 13
Last issue date: 06/08/2004


NumberTitleIssue Date
6745777Tobacco filter means superimposedly rechargeably filled with disposable filter units
A tobacco filter device includes a plurality of filter units superimposedly rechargeably filled in a sleeve member, having a bowl member connected to an outer end (smoking end) of the sleeve member and a mouthpiece connected to an inner end (mouth end) of the sleeve...
06/08/2004
6418937Tobacco pipe assembly with filter adapter
A pipe assembly is provided to accommodate the specific filter preferences of the pipe smoker. The pipe assembly includes a bowl, a stem and a mouthpiece. A cylindrical mounting aperture extends into the end of the stem remote from the bowl, and a connect...
07/16/2002
5954061Cigarette aeration and filtration device
A device comprising a filter and a rod which is capable of insertion into a cigarette cord that has a preformed conduit extending concentrically along the longitudinal axis of the cord. The rod having a plurality of perforations along its entire length, a...
09/21/1999
5819752Anatomically correct mouthpiece
A mouthpiece for smoking instruments which is structured to be anatomically correct, in that it is structurally compatible with the mouth parts of a user when the mouthpiece is situated in the user's mouth to one side thereof. The mouthpiece is a laterall...
10/13/1998
4972856Cigarette filter suitable for being fitted in a cigarette
A filter applicable to a cigarette and fitted therein by a user includes an elongated part fitted in a mouth provided in a cigarette and a flange which seals the cigarette mouth when the elongated part is inserted thereinto....
11/27/1990
4807646Device for use by smokers to enable smoking in public places
A device is provided for the use of smokers, safeguarding non smokers in the same room against inconvenience and harmful effects of smoke. The device includes a bladder or like vessel into which the smoke emitted from the mouth of the smoker is blown....
02/28/1989
4788988Smoking device
A smoking device is disclosed whereby smoke and other gases of combustion can be diluted with air to a pre-selected mixture before being inhaled by a smoker. This is achieved by the use of a carbureting tube which can introduce a metered amount of air int...
12/06/1988
4712569Pipe stem replacement kit
A pipe stem replacement kit having a plurality of tenons of different diameters, each tenon having one cylindrical side and one threaded side, a pipe stem having at one end a mouthpiece and at the other end a threaded aperture to receive the threaded end ...
12/15/1987
4579128Smoker's pipe
A smoker's pipe comprises a bowl portion having a tobacco-receiving cavity below which is formed a transverse, tapering socket. A passageway interconnects the cavity with the socket. A tapering end portion of a stem part is a friction push-fit into the so...
04/01/1986
4577645Reduced moisture smoker's pipe
An improved smoker's pipe of the dry bowl type. The pipe is comprised of a hollow stem having a mouthpiece mounted at one end and a bowl assembly mounted at the other end. In one embodiment of the pipe the bowl assembly includes an outer bowl removably mo...
03/25/1986
4549558Smoking appliance
This invention is an improved smoking appliance in the form of a pipe having a filter holder which is readily openable for insertion and removal of the filter and yet is compact when in the closed position. Also an improved filter medium is provided for e...
10/29/1985
4527571Smoking pipe assembly
A key chain pipe assembly having a bowl, stem, and storage container which forms a cylinder when assembled in one mode for attaching to a key chain or the like and the parts can be disassembled and reassembled in another mode to form a pipe for smoking....
07/09/1985
4294267Pocket pipe
An integral smoking pipe is provided. The pipe includes a burning chamber or bowl, a tobacco storage chamber and a resin collecting chamber or clean-out area. The resin collecting chamber and the burning chamber communicate through one or more common aper...
10/13/1981
 
Sign InRegister
Username  
Password   
forgot password?