Powered grass shear

An electric grass shear comprising:

• a housing comprising a handle portion and a motor housing portion;
• a motor contained within said motor housing portion;
• means to supply electric power to said motor;
• a power switch configured to control a flow of said electric power to said motor;
• a fixed blade having a multiplicity of forwardly-projecting, laterally spaced-apart teeth disposed on said motor housing portion;
• a movable blade also having a multiplicity of forwardly-projecting laterally spaced-apart teeth associated with said fixed blade;
• means for converting rotary motion from said motor to non-rotary motion and for transmitting said motion to said movable blade, wherein the type of non-rotary motion is chosen from the group consisting of lateral-oscillating motion and arcuately-reciprocating motion, such that operation of said motor causes said movable blade to move across said fixed blade, thereby cutting vegetation between the teeth of said blades;
• and
• a safety button linked to the power switch such that said safety button must be pressed before said power switch can be actuated to allow electric current to flow to the motor.