Differenze tra le versioni di "Touch Down/en"

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(Creata pagina con "<noinclude>{{ReferBox|Filling systems}}</noinclude>The loading system called ''Touch Down'' by the company itself was introduced by Sheaffer in 1949 for the Touchdown|ho...")
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<noinclude>{{ReferBox|Filling systems}}</noinclude>The loading system called ''Touch Down'' by the company itself was introduced by [[Sheaffer]] in 1949 for the [[Touchdown|homonymous models]], and is nothing more than a more sophisticated reworking, carried out after twenty-five years (patent {{Cite patent|US|2610612}}), of the [[Chilton]] [[pneumatic filler]] system (whose patent, {{Cite patent|US|1528379}}, is mentioned explicitly). In fact, the operating principle is essentially identical, what changes is the way in which the pneumatic compression of the rubber sac inside the pen is carried out.  
 
<noinclude>{{ReferBox|Filling systems}}</noinclude>The loading system called ''Touch Down'' by the company itself was introduced by [[Sheaffer]] in 1949 for the [[Touchdown|homonymous models]], and is nothing more than a more sophisticated reworking, carried out after twenty-five years (patent {{Cite patent|US|2610612}}), of the [[Chilton]] [[pneumatic filler]] system (whose patent, {{Cite patent|US|1528379}}, is mentioned explicitly). In fact, the operating principle is essentially identical, what changes is the way in which the pneumatic compression of the rubber sac inside the pen is carried out.  
  
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Anche in questo caso si ha un fondello svitabile che è agganciato ad un cilindro metallico che scorre ermeticamente grazie ad una guarnizione lungo il corpo della penna, il meccanismo è però molto più complesso per evitare l'uso del foro di areazione sul fondo della penna e consentire la compressione soltanto spingendo verso il basso il tubo ancorato al fondello una volta che lo si è estratto.  
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Also in this case there is an unscrewable bottom that is hooked to a metal cylinder that slides hermetically thanks to a gasket along the body of the pen, the mechanism is however much more complex to avoid the use of the ventilation hole on the bottom of the pen and allow compression only by pushing down the tube anchored to the bottom once you have extracted it.  
  
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In questo caso la compressione avviene facendo passare l'aria nell'intercapedine attraverso non un foro sulla punta del cappuccio ma delle brevi scanalatura laterali alla due estremità del tubo interno. In fase di apertura le scanalature sul fondo consentono l'espansione del sacchetto, chiudendo il pistone lo scorrimento è a tenuta e l'aria interna comprime il sacchetto, a fondo corso le altre scanalature permettono all'aria di fuoriuscire e l'espansione del sacchetto carica l'inchiostro. <noinclude>
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In this case, the compression takes place by passing the air in the cavity through not a hole on the tip of the cap but short lateral grooves at the two ends of the inner tube. When opening the grooves on the bottom allow the expansion of the bag, closing the piston the slide is sealed and the internal air compresses the sac, at the end of the course the other grooves allow the air to escape and the expansion of the sac loads the ink. <noinclude>
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==Brevetti correlati==
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==Related Patents==
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{{ListaBrevettiFeature|Touch Down}}
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{{ListsPatentsFeature|Touch Down}}
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{{CategorizeArticle|Tecnica|Vocabolario|Sistemi di caricamento|Glossary|Technology|Filling systems}}
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[[Category:Translated Pages]]
 
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Versione delle 00:48, 4 set 2019

Filling systems

The loading system called Touch Down by the company itself was introduced by Sheaffer in 1949 for the homonymous models, and is nothing more than a more sophisticated reworking, carried out after twenty-five years (patent nº US-2610612), of the Chilton pneumatic filler system (whose patent, nº US-1528379, is mentioned explicitly). In fact, the operating principle is essentially identical, what changes is the way in which the pneumatic compression of the rubber sac inside the pen is carried out.

Also in this case there is an unscrewable bottom that is hooked to a metal cylinder that slides hermetically thanks to a gasket along the body of the pen, the mechanism is however much more complex to avoid the use of the ventilation hole on the bottom of the pen and allow compression only by pushing down the tube anchored to the bottom once you have extracted it.

In this case, the compression takes place by passing the air in the cavity through not a hole on the tip of the cap but short lateral grooves at the two ends of the inner tube. When opening the grooves on the bottom allow the expansion of the bag, closing the piston the slide is sealed and the internal air compresses the sac, at the end of the course the other grooves allow the air to escape and the expansion of the sac loads the ink.

Related Patents

  • Patent n° US-1607048, of 1926-11-16, requested on 1925-07-18, of Edward Bergquist, Unbranded. Pen-filling mechanism.
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