Resources Contact Us Home
Removable closure cap with temperature dependent control element

Image Number 14 for United States Patent #6378717.

A closure cap which can screw onto the fixed neck of a cooling system expansion tank. The closure cap is provided with a screw cap and a threaded section in which a combination pressure-vacuum valve is mounted concentrically and in such a way that it can rotate in relation to the screw cap. The valve is provided with a sealing element which comes into tight contact with the fixed neck when the closure is screwed. To endure that the closure cap can be unscrewed only when the excess heat in the cooling system has been completely dissipated, it is proposed that the closure cap when screwed onto the fixed neck would be prevented from unscrewing means of a temperature-dependent control element.

  Recently Added Patents
Graphical planner
Lithographic apparatus and device manufacturing method
Piezoelectric quasi-resonance linear motors based on acoustic standing waves with combined resonator
Expandable mobile device
Method for producing vinyl acetate monomer
Headset systems and methods
Formation of a masking layer on a dielectric region to facilitate formation of a capping layer on electrically conductive regions separated by the dielectric region
  Randomly Featured Patents
Promoter from the rice triosephosphate isomerase gene OsTPI
Method for controlling the temperature of the exhaust gases of a thermal engine
Medical tube set
Top cover for tank type suction cleaner
Anti-tip device for an appliance with an interlock switch
Card type peripheral apparatus and host apparatus for accessing respective parts of stored protocol ID information one part after another
Photopatternable dielectric materials for BEOL applications and methods for use
Surround sound loudspeaker system
Forming a wellbore casing while simultaneously drilling a wellbore
Surgical microscopy system