Electrical hand tool device
First Claim
1. An electrical hand tool device for locking and releasing an operational state of an electrical hand tool, the device comprising:
- a first transmitter and receiver means disposed on the hand tool;
a storage means disposed on the hand tool for storage of an authorization code;
a control electronics disposed on the hand tool in electrical communication with said storage means and said first transmitter and receiver means; and
a second transmitter and receiver means which is remote from the hand tool and accommodated in a separate, portable device, wherein actuation of said second transmitter and receiver means produces wireless communication with the first transmitter and receiver means in a contact-free fashion when the operational state of the hand tool is to be changed, wherein said communication consists essentially of changing the operational state or changing said authorization code.
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Accused Products
Abstract
An electrical hand tool device (2) comprises a control electronics (8) and a transmitter and receiver (10) which is responsive in a wireless and contact-free fashion, and with a storage medium (12) in which an authorization code is stored, wherein an operation locking state and an operation release state can be differentiated, and with an external transmitter and receiver means (16) which is accommodated in a separate portable device (4), wherein communication with the transmitter and receiver means (10) of the electrical hand tool device can be produced in a defined fashion through actuation of the external transmitter and receiver means (16) to change the operation state, and communication is provided only to change the operation state and optionally to change the authorization code.
60 Citations
10 Claims
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1. An electrical hand tool device for locking and releasing an operational state of an electrical hand tool, the device comprising:
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a first transmitter and receiver means disposed on the hand tool;
a storage means disposed on the hand tool for storage of an authorization code;
a control electronics disposed on the hand tool in electrical communication with said storage means and said first transmitter and receiver means; and
a second transmitter and receiver means which is remote from the hand tool and accommodated in a separate, portable device, wherein actuation of said second transmitter and receiver means produces wireless communication with the first transmitter and receiver means in a contact-free fashion when the operational state of the hand tool is to be changed, wherein said communication consists essentially of changing the operational state or changing said authorization code. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for operating or locking an electrical hand tool using an electrical hand tool device having a control electronics and a first transmitter and receiver means which is responsive in a wireless and contact-free fashion, and with a storage means in which an authorization code is stored, wherein an operation locking state and an operation release state can be differentiated, and with a second, external transmitter and receiver means which is accommodated in a separate, portable device, the method comprising the steps of:
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a) transmitting first radio or infrared signals from the second transmitter and receiver means to the first transmitter and receiver means, said first signals consisting essentially of one of change of operational state information and change of authorization code information; and
b) transmitting, following a change in operational state, second radio or infrared signals from the first transmitter and receiver means to the second transmitter and receiver means to announce said change in operational state to a user.
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Specification