SPEED INDICATING DEVICE

• US 3,665,390 A
• Filed: 05/13/1970
• Issued: 05/23/1972
• Est. Priority Date: 05/13/1970
• Status: Expired due to Term

• Current Assignee: Robert E. Lee
• Original Assignee: Robert E. Lee
• Inventors: Lee, Robert E.
• Primary Examiner(s): Caldwell, John W.
• Assistant Examiner(s): Swann, III, Glen R.
• Application Number:
  US05/036,957
• Time in Patent Office: 741 Days
• Field of Search: 340/62 180/106,110 123/13B,102
• US Class Current: 340/441
• CPC Class Codes: G01P 1/11 by the detection of the position of the indicator needle

Abstract

A speed indicating device is provided which may be adjusted to indicate a maximum and a minimum speed as the vehicle is in motion. A pair of switches or contacts are provided which indicate maximum and minimum speeds which may be perhaps ten miles per hour different. A fan or propeller actuates an arm which will oscillate between contacts depending upon the vehicle speed. However, the contacts are adjustable through operation of the arm. The normally fixed contact support may be released, so that the vehicle speed may be increased to a predetermined maximum, and then the contact support may be locked to provide an indication when the desired speed is exceeded.

Claims

1. A vehicle speed indicating device including:

a rotatable member actuated by air pressure the rotative position of which is dependent upon the speed of movement of the vehicle, a shaft supporting said rotatable member and rotatable therewith, a hub secured in fixed relation to the vehicle and through which said shaft extends;

a control arm secured to said shaft and extending generally radially therefrom, a contact member rotatably supported on said hub coaxial with said shaft, circuit actuating means operable by engagement of said control arm with said contact member, means normally holding said contact member from rotation, and driver controlled means for releasing said last named means, whereby when said control arm engages said contact member it may rotate therewith.

2. The structure of claim 1 and in which said rotatably supported contact member includes a pair of members between which said control arm may rotate.

3. The structure of claim 2 and including resilient means urging said control arm in one direction against one of said members.

4. The structure of claim 2 and including signal means controlled by engagement of said control arm against either member of said pair.

5. The struCture of claim 1 and in which said means normally holding said contact member from rotation comprises a spring urged plunger.

6. The structure of claim 5 and in which said spring urged plunger is solenoid actuated.

7. The structure of claim 1 and in which rotation of said rotatable member is resiliently resisted.

8. The structure of claim 1 and including signal means controlled by engagement of said control arm with said contact member.

9. The structure of claim 1 and in which said contact member includes a disc.

10. The structure of claim 9 and in which said disc supports a pair of angularly spaced switch means.