Using A Powered Device (e.g., Motor) Patents (Class 70/275)
- Actuated after correct combination recognized (e.g., numerical, alphabetical, or magnet(s) pattern) (Class 70/278.1)
- And details of blocking system (e.g., linkage, latch, pawl, spring) (Class 70/278.7)
- And alternately mechanically actuated by a key, dial, etc. (Class 70/279.1)
- Projected and retracted electrically (Class 70/280)
- Projected electrically only (Class 70/281)
- Retracted electrically only (Class 70/282)
- Dogging manual operator (Class 70/283)
- Key initiated actuation of device (Class 70/283.1)