§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
US4245334A Expired / Lapsed US ⏱️ 0.0 years remaining

Device for measuring and indicating the time between the reception of first and second airborne signals

Assignee: Individual
•
Filing: 1979-06-29
•
Granted: 1981-01-13
•
Expires: 1999-06-29
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A system for measuring and indicating the time required for a movement from a first location to a second location that is spaced from the first location, including a first transmitter located at the first location and adapted to transmit either an RF or an acoustical signal, a second transmitter located at the second location and then adapted to transmit a second acoustical or RF energy signal, a moving vehicle, such as a sports implement, designed to travel between the first and second locations and having a receiver with a sensing antenna, for receiving the first and second acoustical or RF energy signals. The receiver is connected by a start-switch and a stop-switch to an electronic stopwatch which is capable of delivering timed clock signals to a memory circuit. An electronic read-out display, such as a liquid crystal display, is connected to the memory circuit, so that as the vehicle travels past the first transmitter, the start-switch connected to the receiver will turn on the stopwatch to begin a count of the pulse train and, as the vehicle passes the second transmitter, the stop-switch will turn off the stopwatch and the display will provide the elapsed time for the movement between the first and second locations.

Inventors

  • 👤 Erich Bieramperl

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 01:29
CPC Classifications
G; G07; G07C; G07C1/00; G07C1/22; A; A63; A63C; A63C11/00; G04; G04B; G04B47/00; G04F; G04F10/00; G04F10/04

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 189 words
A system mounted on a vehicle for measuring and indicating the time required for a movement from a first location to a second location spaced from the first location, said system comprising: a first transmitter located at said first location and adapted to transmit a first energy signal; a second transmitter located at said second location and adapted to transmit a second energy signal; an electronic stopwatch for delivering clock signals; a memory coupled to said watch for receiving and storing said clock signals; display means coupled to said memory means for providing a visual indication of the clock signals stored by said memory; an energy signal receiver having a sensor for receiving said first and second energy signals; a start switch for coupling the output of said receiver to the input of said stopwatch and responsive to said first energy signal, so as to turn on said watch to provide clock signals; and a stop switch for coupling the output of said receiver to the input of said stopwatch and responsive to said second energy signal, so as to turn off said watch and terminate the clock signals.
Claim 2
Independent Claim 189 words
A system mounted on a vehicle for measuring and indicating the time required for a movement from a first location to a second location spaced from the first location, said system comprising: a first transmitter located at said first location and adapted to transmit a first energy signal; a second transmitter located at said second location and adapted to transmit a second energy signal; an electronic stopwatch for delivering clock signals; a memory coupled to said watch for receiving and storing said clock signals; display means coupled to said memory means for providing a visual indication of the clock signals stored by said memory; an energy signal receiver having a sensor for receiving said first and second energy signals; a start switch for coupling the output of said receiver to the input of said stopwatch and responsive to said first energy signal, so as to turn on said watch to provide clock signals; and a stop switch for coupling the output of said receiver to the input of said stopwatch and responsive to said second energy signal, so as to turn off said watch and terminate the clock signals.
Claim 3
Dependent Claim 13 words
The system as recited in claim 1, wherein said vehicle comprises sports implement.
Claim 4
Dependent Claim 14 words
The system as recited in claim 2, wherein said sports implement comprises a ski.
Claim 5
Dependent Claim 33 words
The system as recited in claim 1, wherein said first and second transmitters are adapted to transmit their energy signals as acoustical sound waves, and wherein said receiver is an acoustical signal receiver.
Claim 6
Dependent Claim 24 words
The system as recited in claim 1, wherein each of said transmitters transmits radiant energy signals and said receiver is a radiant energy receiver.
Claim 7
Dependent Claim 24 words
The system as recited in claim 2, wherein said stopwatch, memory, display means, receiver and start and stop switches, are sealed to said vehicle.
Claim 8
Dependent Claim 33 words
The system as recited in claim 1, additionally comprising a master switch for turning on said electronic stopwatch and a reset key for resetting the stopwatch and the memory containing the clock signals.

References Cited (Backward Citations)

US4078376A Cited
US4075829A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-01-13 1984-07-14 1985-01-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-01-13 1988-07-14 1989-01-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-01-13 1992-07-14 1993-01-13 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag