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Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."

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Class 451/38 - By blasting


Subclass of Class 451 - Abrading
Definition: Method wherein cutting is accomplished by forceful propulsion
No. of patents: 530
Last issue date: 05/29/2012


                    14  
NumberTitleIssue Date
4025062Thermal deburring unit
Apparatus for the rapid removal of burrs from workpieces by the application of transient thermal energy in a closed chamber. The chamber comprises a downwardly open upper closure fixedly supported above a vertically movable lower closure, both closures be...
05/24/1977
4020535Method of making an electro-discharge electrode
Method of forming an electrode for imprinting or imaging a circuit board mold face includes covering a graphite substrate with a photoresist material. The photoresist material is appropriately exposed to develop a desired pattern. The unpolymerized photor...
05/03/1977
4011690Pipe cleaning apparatus
An apparatus for cleaning the surface of a pipeline by grit blasting, particularly the surface of a leaking bell and spigot joint, prior to encapsulating the joint for leak sealing purposes. The apparatus is mounted to the pipeline and has drive means to ...
03/15/1977
4011099Preparation of damage-free surface on alpha-alumina
A chemical polishing process for alpha-alumina utilizing a silica colloid polishing fluid which is both a reactant and a medium for the removal of the reaction product is disclosed....
03/08/1977
4004374Descaling bent rod with separated cleaning particles
A method of descaling a rod comprises forming at least one bend in the rod and rotating the bent portion in an appproximately circular path while maintaining it in a space having a distribution of separated cleaning particles therein in a suspended relati...
01/25/1977
3977128Surface treating apparatus
An improved abrasive throwing machine comprises an enclosure having means therein for projecting abrasive particles at an inclined angle relative to a surface to be treated. The improvement comprises rotatable means within the enclosure capable of propell...
08/31/1976
3953941Method and apparatus for making a groove in a semi-conductor element
A method and apparatus for forming a groove in a semiconductor element with at least two junctions between regions of alternating opposite conduction types and different doping concentrations and with the semiconducting region enclosed between the junctio...
05/04/1976
3945155Method of removing ice from a surface by blasting
A method for treatment of a surface over which vehicles travel with particulate material is disclosed. Particulate material is projected onto the surface with kinetic energy exceeding the bonding energy of the surface or the bonding energy of a deposit ad...
03/23/1976
3934379Removal of built up layers of organic coatings
A method for removal of layers of organic material built up on a support for articles during surface coating and treating comprising applying a liquefied inert gas to the support and/or preferably to the built up layers of organic material to cause embrit...
01/27/1976
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