US 12,075,941 B2
Mixer with safety mechanisms
Colin Sapire, Los Angeles, CA (US)
Assigned to Capbran Holdings, LLC, Los Angeles, CA (US)
Filed by Capbran Holdings, LLC, Los Angeles, CA (US)
Filed on Jan. 22, 2021, as Appl. No. 17/156,366.
Application 17/156,366 is a continuation of application No. 15/921,515, filed on Mar. 14, 2018, granted, now 10,898,028.
Claims priority of provisional application 62/527,945, filed on Jun. 30, 2017.
Prior Publication US 2021/0145210 A1, May 20, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A47J 43/07 (2006.01); A47J 36/10 (2006.01); A47J 43/042 (2006.01); A47J 43/046 (2006.01); A47J 43/08 (2006.01)
CPC A47J 36/10 (2013.01) [A47J 43/042 (2013.01); A47J 43/046 (2013.01); A47J 43/0722 (2013.01); A47J 43/0761 (2013.01); A47J 43/085 (2013.01); A47J 43/075 (2013.01); A47J 43/0766 (2013.01); A47J 43/0772 (2013.01); A47J 43/0777 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A blender comprising:
a container, said container having an open end and comprising at least one tongue protrusion extending inward from the container;
a blade assembly, said blade assembly having:
a blade holder, said blade holder having an interior surface comprising at least one slot, a collar, and a bottom collar rim formed as a unitary structure; and,
a blade, said blade being mounted centrally on said blade assembly; and
a blade holder protrusion on said bottom collar rim;
wherein said blade assembly is removably affixed to said open end of said container by engaging said tongue protrusion with said slot;
a base, said base having a motor for operating said blender when said blade assembly is mounted on said base, wherein said base comprises at least one recess to accommodate the blade holder protrusion;
a first safety mechanism within said blade assembly movable between a first position and a second position;
wherein in said first position, said first safety mechanism is misaligned relative to the blade holder protrusion, thereby physically blocking said blade assembly from being operationally affixed on said base;
wherein in said second position said first safety mechanism is aligned relative to the blade holder protrusion, thereby allowing said blade assembly to be operationally affixed on said base;
wherein said first safety mechanism moves into said second position only when said container is affixed to said blade assembly;
a second safety mechanism movable between a third position and a fourth position, said second safety mechanism having at least one emitter capable of communicating with at least one detector to enable said motor to be activated;
wherein in said third position said emitter cannot communicate with said detector;
wherein in said fourth position said emitter communicates with said detector to enable said motor to be activated; and,
wherein said second safety mechanism moves into said fourth position only when said container is affixed to said blade assembly;
whereby said blade assembly can only be operationally affixed to said base when said first safety mechanism is in said second position by affixing said container to said blade assembly;
whereby said motor can only be activated when said second safety mechanism is in said fourth position by affixing said container to said blade assembly; and,
whereby said motor is activated to operate said blender only when said first safety mechanism is in said second position and said second safety mechanism is simultaneously in said fourth position;
whereby said first safety and said second safety mechanism operate in tandem at the point of said container and said blade assembly attachment, ensuring said container is affixed to said blade assembly before said blade assembly can be operationally affixed to said base and said motor can be activated.