with fins or blades

Full Title

Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems > Cooling arrangements > characterised by passive heat-dissipating elements, e.g. heat-sinks > with fins or blades

Classification Context

Section:

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

Class:

LIGHTING

Subclass:

FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR

Child Classifications

Navigate with arrow keys, Enter to open

• F21V 29/75 with fins or blades having different shapes, thicknesses or spacing
• F21V 29/76 with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
• F21V 29/77 with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
• F21V 29/78 with helically or spirally arranged fins or blades