Timer

Claim 2

For use in a vehicle that interrupts one or more radiation paths to determine the acceleration and/or speed of the vehicle, timing apparatus comprising: a source of clock pulses, a counter operatively responsive to said clock pulses and including visual display means that indicate the count contained within said counter, gating means connected between said source of pulses and said counter and, when enabled, apply said clock pulses to said counter, a first bistable device, a transduCer on said vehicle coupled to said first bistable device to toggle said first bistable device when said vehicle moves from a stationary position, a second bistable device, a radiation-responsive device mounted on said vehicle to toggle said second bistable device in response to said vehicle interrupting a radiation path, circuit means coupling said first and second bistable devices to said gating means and responsive to the state of said bistable devices to enable said gating means when said vehicle moves from a stationary position and to disable said gating means when said vehicle interrupts a predetermined radiation path, and switching means connected between said first bistable device, and said transducer and said radiation responsive device and adapted to couple either said transducer or said radiation responsive device to said first bistable device.

Claim 3

The apparatus of claim 1 further including; coupling means between said first and second bistable devices to prevent said second bistable device from being toggled until after said first bistable device has been toggled.

Claim 4

The apparatus of claim 2 wherein coupling of said radiation-responsive device also to said first bistable device enables said gating means when said vehicle interrupts a first radiation path and disables said gating means when said vehicle interrupts a predetermined subsequent radiation path.

Claim 5

For use in a vehicle that interrupts one or more radiation paths to determine the acceleration and/or speed of the vehicle timing apparatus comprising: a source of clock pulses, a counter operatively responsive to said clock pulses and including visual display means that indicate the count contained within said counter, gating means connected between said source of pulses and said counter and, when enabled, apply said clock pulses to said counter, a first bistable device, a transducer on said vehicle coupled to said first bistable device to toggle said first bistable device when said vehicle moves from a stationary position, a second bistable device, a radiation-responsive device mounted on said vehicle to toggle said second bistable device in response to said vehicle interrupting a radiation path, circuit means coupling said first and second bistable devices to said gating means and responsive to the state of said bistable devices to enable said gating means when said vehicle moves from a stationary position and to disable said gating means when said vehicle interrupts a predetermined radiation path, and said second bistable device has two stable states with each state having an output terminal associated therewith, switching means in said circuit means connected to said output terminals for coupling either of said output terminals, respectively, to said circuit means and to enable at least one radiation path to be interrupted without disabling said gating means.

Claim 6

For use in a vehicle that interrupts one or more radiation paths to determine the acceleration and/or speed of the vehicle timing apparatus comprising: a source of clock pulses, a counter operatively responsive to said clock pulses and including visual display means that indicate the count contained within said counter, gating means connected between said source of pulses and said counter and, when enabled, apply said clock pulses to said counter, a first bistable device, a transducer on said vehicle coupled to said first bistable device to toggle said first bistable device when said vehicle moves from a stationary position, a second bistable device, a radiation-responsive device mounted on said vehicle to toggle said second bistable device in response to said vehicle interrupting a radiation path, circuit means coupling said first and second bistable devices to said gating means and responsive to the state of said bistable devices to enable said gating means when said vehicle moves from a stationary position and to disable said gating means when said vehicle interrupts a predetermined radiation path, and said second bistable device has two stable states with each state having an output terminal associated therewith, switching means in said circuit means connected to said output terminals for coupling either of said output terminals, respectively, to said circuit means and to enable at least one radiation path to be interrupted without disabling said gating means.

Claim 7

For use in a vehicle that interrupts one or more radiation paths to determine the acceleration and/or speed of the vehicle, timing apparatus comprising: a source of clock pulses, a counter operatively responsive to said clock pulses and including visual display means that indicate the count contained within said counter, gating means connected between said source of pulses and said counter and, when enabled, applies said pulses to said counter, a first bistable device, a transducer on said vehicle coupled to said first bistable device to toggle said first bistable device when said vehicle moves from a stationary position, a second bistable device, a radiation-responsive device mounted on said vehicle to toggle said second bistable device in response to said vehicle interrupting a radiation path, and circuit means coupling said first and second bistable devices to said gating means and responsive to the state of said bistable devices to enable said gating means when said vehicle moves from a stationary position and to disAble said gating means when said vehicle interrupts a predetermined radiation path, said circuit means includes a third bistable device adapted to be toggled either by said first or said second bistable device being toggled into a predetermined stable, and said third bistable device having an output associated with one of its stable states coupled to said gating means and adapted to enable and disable said gating means as said third bistable device is toggled.

Claim 8

For use in a vehicle that interrupts one or more radiation paths to determine the acceleration and/or speed of the vehicle, timing apparatus comprising: a source of clock pulses, a counter operatively responsive to said clock pulses and including visual display means that indicate the count contained within said counter, gating means connected between said source of pulses and said counter and, when enabled, applies said pulses to said counter, a first bistable device, a transducer on said vehicle coupled to said first bistable device to toggle said first bistable device when said vehicle moves from a stationary position, a second bistable device, a radiation-responsive device mounted on said vehicle to toggle said second bistable device in response to said vehicle interrupting a radiation path, and circuit means coupling said first and second bistable devices to said gating means and responsive to the state of said bistable devices to enable said gating means when said vehicle moves from a stationary position and to disAble said gating means when said vehicle interrupts a predetermined radiation path, said circuit means includes a third bistable device adapted to be toggled either by said first or said second bistable device being toggled into a predetermined stable, and said third bistable device having an output associated with one of its stable states coupled to said gating means and adapted to enable and disable said gating means as said third bistable device is toggled.

Claim 9

For use in a vehicle that interrupts one or more radiation paths to determine the acceleration and/or speed of the vehicle timing apparatus comprising: a source of clock pulses, a counter operatively responsive to said clock pulses and including visual display means that indicate the count contained within said counter, gating means connected between said source of pulses and said counter and, when enabled, apply said clock pulses to said counter, a first bistable device, a transducer on said vehicle coupled to said first bistable device to toggle said first bistable device when said vehicle moves from a stationary position, a second bistable device, a radiation-responsive device mounted on said vehicle to toggle said second bistable device in response to said vehicle interrupting a radiation path, and circuit means coupling said first and second bistable devices to said gating means and responsive to the state of said bistable devices to enable said gating means when said vehicle moves from a stationary position and to disable said gating means when said vehicle interrupts a predetermined radiation path, said first bistable device includes feedback means that prevents said first bistable device from being toggled after it has been toggled into a predetermined one of its stable states.

Claim 10

For use in a vehicle that interrupts one or more radiation paths to determine the acceleration and/or speed of the vehicle timing apparatus comprising: a source of clock pulses, a counter operatively responsive to said clock pulses and including visual display means that indicate the count contained within said counter, gating means connected between said source of pulses and said counter and, when enabled, apply said clock pulses to said counter, a first bistable device, a transducer on said vehicle coupled to said first bistable device to toggle said first bistable device when said vehicle moves from a stationary position, a second bistable device, a radiation-responsive device mounted on said vehicle to toggle said second bistable device in response to said vehicle interrupting a radiation path, and circuit means coupling said first and second bistable devices to said gating means and responsive to the state of said bistable devices to enable said gating means when said vehicle moves from a stationary position and to disable said gating means when said vehicle interrupts a predetermined radiation path, said first bistable device includes feedback means that prevents said first bistable device from being toggled after it has been toggled into a predetermined one of its stable states.

Claim 11

For use in a vehicle that interrupts one or more radiation paths to determine the acceleration and/or speed of the vehicle timing apparatus comprising: a source of clock pulses, a counter operatively responsive to said clock pulses and including visual display means that indicate the count contained within said counter, gating means connected between said source of pulses and said counter and, when enabled, apply said clock pulses to said counter, a first bistable device, a transducer on said vehicle coupled to said first bistable device to toggle said first bistable device when said vehicle moves from a stationary position, a second bistable device, a radiation-responsive device mounted on said vehicle to toggle said second bistable device in response to said vehicle interrupting a radiation path, circuit means coupling said first and second bistable devices to said gating means and responsive to the state of said bistable devices to enable said gating means when said vehicle moves from a stationary position and to disable said gating means when said vehicle interrupts a predetermined radiation path, and manually adjustable means coupled to said second bistable device and adapted to prevent said second bistable device from being toggled for a predetermined time interval, said adjustable means includes circuit means for generating an electrical pulse of predetermined duration which when applied to said second bistable device prevents said second bistable device from being toggled.

Claim 12

For use in a vehicle that interrupts one or more radiation paths to determine the acceleration and/or speed of the vehicle timing apparatus comprising: a source of clock pulses, a counter operatively responsive to said clock pulses and including visual display means that indicate the count contained within said counter, gating means connected between said source of pulses and said counter and, when enabled, apply said clock pulses to said counter, a first bistable device, a transducer on said vehicle coupled to said first bistable device to toggle said first bistable device when said vehicle moves from a stationary position, a second bistable device, a radiation-responsive device mounted on said vehicle to toggle said second bistable device in response to said vehicle interrupting a radiation path, circuit means coupling said first and second bistable devices to said gating means and responsive to the state of said bistable devices to enable said gating means when said vehicle moves from a stationary position and to disable said gating means when said vehicle interrupts a predetermined radiation path, and manually adjustable means coupled to said second bistable device and adapted to prevent said second bistable device from being toggled for a predetermined time interval, said adjustable means includes circuit means for generating an electrical pulse of predetermined duration which when applied to said second bistable device prevents said second bistable device from being toggled.