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Patent No. 5823386

Reward Candy Dispenser for Personal Computers

A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.

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Class 29/890.145 - Flue connector device making


Subclass of Class 29 - Metal working
Definition: Process under 890.14 wherein the manufactured article forms
No. of patents: 8
Last issue date: 02/12/2008


NumberTitleIssue Date
7328510Elbow rotator
An elbow rotator apparatus for rotating an integrally formed section of an elbow workpiece includes a pair of gripping arms which are selectively positionable in a first position displaced from the elbow workpiece, and a second position in which the gripping arms ar...
02/12/2008
7096585Apparatus and method for automated production of adjustable duct member
An apparatus and method for forming a duct member having a plurality of adjustable sections which are rotatable relative to one another. The apparatus and method causes relative rotation between individual sections during the manufacturing process, to form a complet...
08/29/2006
6687996Method of making an exhaust gas collector
In a method of making an exhaust gas collector, a collector housing is made from a tubular blank, and subsequently, an inlet duct is formed through a widening process to provide a substantially rectangular cross section with rounded narrow sides. The inle...
02/10/2004
6594900Method for manufacturing a pipe connector of a gas isolated switchgear
A method for manufacturing a pipe connector for a gas isolated switchgear has the steps of preparing a material block, a first forging process, a second forging process to form the material block to an I-shaped member, defining a passage through the I-sha...
07/22/2003
6163960Static ventilator including a corrugated portion
A static ventilator provided with a deformable corrugated portion is described herein. The static ventilator is provided with a tubular base to be installed to the roof, a sleeve to be connected to the tubular base and a cover to be installed to the free ...
12/26/2000
5655299Method of fabricating a tank and method of fabricating a tank connector therefor
The method of fabricating a tank connector assembly comprising the steps of first providing a metal spud member having an internally threaded portion and a cylindrical wall portion. Producing a sub-assembly comprised of an insert member having an internal...
08/12/1997
4893390Method and expander for manufacturing a furnace heat exchanger and plate assembly
A furnace heat exchanger and support plate assembly are joined together by a cooperating substantially elliptical rim defining an opening in the heat exchanger and an opening formed by a mating flange on a partition plate and extending perpendicular to th...
01/16/1990
4243014Combustion chamber construction
An improved combustion chamber comprises a shell having a circular array of integral teeth formed at one end thereof. Shrunkfit onto said shell end at or near the roots of the teeth is a ring. The toothed end of the shell is received in an opening in a sh...
01/06/1981
 
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