Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Purhonen; Matti
Address:
Helsinki, FI
No. of patents:
3
Patents:












Patent Number Title Of Patent Date Issued
D287159 Valve for equalizing pressure resulting from explosions or blasts December 9, 1986
4733606 Closure device March 29, 1988
A closure device for shelters and the like. The frame (1) of the closure device is provided with at least one flow-through passage (2); a closure (3) is mounted displaceably in each passage; and a counter part is formed in the frame for each closure. The closure is displaceable between a
4109754 Noise absorber for air or gas flows August 29, 1978
A noise absorber for air or gas flows, which comprises a flow channel provided at opposite ends with flow inlet and outlet connections. One pair of opposite walls of the flow channel extends concavely and the other pair of opposite walls extends convexly from the inlet connection to the










 
 
  Recently Added Patents
Catalyst compositions for hydroformylation reaction and hydroformylation process using the same
HSP20 inhibits amyloidogenesis and neurotoxicity
Methods of saccharification of polysaccharides in plants
Emulsions containing arylboronic acids and medical articles made therefrom
Asymmetric switching rectifier
Dynamic load profiling in a power network
Communication apparatus and communication system
  Randomly Featured Patents
Device for correcting output of optical pickup
Device for blowing thermoplastic containers
Three way valve and distribution pipe comprising same, both adapted to be cleaned by scraping
Apparatus for supporting a work piece
High pressure relief for microwave digestion vessel assembly
Disposable diaper
Method of manufacturing a temperature compensated oscillator
Serial interface device
Multiple component compression encoder motion search method and apparatus
Method of and apparatus for measuring radius