Volumetric lubricant dispensing apparatus and method of use for same

• US 5,878,842 A
• Filed: 03/19/1997
• Issued: 03/09/1999
• Est. Priority Date: 03/19/1997
• Status: Expired due to Fees

• Current Assignee: Trico MFG. Corp.
• Original Assignee: Trico Manufacturing Corporation
• Inventors: Rake, Brad
• Primary Examiner(s): VERDIER, CHRISTOPHER M
• Application Number:
  US08/820,124
• Time in Patent Office: 720 Days
• Field of Search: 184/6.4, 184/7.4, 184/8, 184/37, 184/108, 184/27.1, 184/103.1, 184/103.2, 384/462, 384/448
• US Class Current: 184/6.4
• CPC Class Codes: F16C 33/6674 related to the amount supplied, e.g. gaps to restrict flow of the liquid
• CPC Class Codes: F16N 2230/02 Microprocessor; Microcomputer
• CPC Class Codes: F16N 2250/04 Pressure
• CPC Class Codes: F16N 2250/08 Temperature
• CPC Class Codes: F16N 2250/38 Piezo; x-tal
• CPC Class Codes: F16N 27/00 Proportioning devices liquid meters G01F
• CPC Class Codes: F16N 29/02 for influencing the supply of lubricant

Abstract

A volumetric lubricant dispensing apparatus for delivering a precise volume of lubricant, such as oil, to a rotating machine element. The delivery mechanism includes a piston and cylinder assembly. A plurality of sensors are utilized to record operating conditions of the machine, element, environment, and lubricant. The apparatus is controlled either manually or with the aid of a controller unit such as a microprocessor. The output from each sensor is inputted into the microprocessor wherein an algorithm computes an responsive output. The responsive output is sent to the piston and cylinder assembly which maintains an optimum lubricant condition within the reservoir wherein a rotating machine element located.

Claims

1. A volumetric lubricant dispensing apparatus for sensing lubricant condition and dispensing lubricant into a housing having a machine element to be lubricated, the apparatus comprising:

a control unit, a dispensing mechanism, and at least one sensor;

the control unit being coupled to the dispensing mechanism;

the dispensing mechanism being fluidly coupled to said housing;

the level of lubricant within the housing capable of being volumertically increased and decreased by the dispensing mechanism sensing said lubricant condition;

the sensor being communicatively coupled to the control unit.

2. The volumetric lubricant dispensing apparatus of claim 1 wherein the sensor is a temperature sensor.

3. The volumetric lubricant dispensing apparatus of claim 1 wherein the sensor is a pressure sensor.

4. The volumetric lubricant dispensing apparatus of claim 1 wherein the sensor is a vibration sensor.

5. The volumetric lubricant dispensing apparatus of claim 1 wherein the sensor is a power sensor.

6. A volumetric lubricant dispensing apparatus for sensing lubricant condition and dispensing lubricant within a reservoir having a machine element, said apparatus comprising:

a dispensing mechanism for volumetrically increasing and decreasing a quantity of lubricant in said reservoir, the dispensing mechanism having a cylinder and a piston;

the piston being sealably positioned within said cylinder;

a moving mechanism for moving said piston, said moving mechanism being coupled to said piston;

the cylinder being fluidly connected to said reservoir;

at least one sensor, said sensor being communicatively coupled to a microprocessor;

the microprocessor being communicatively coupled to the moving mechanism.

7. The apparatus of claim 6 wherein the sensor is a temperature sensor.

8. The apparatus of claim 6 wherein the sensor is a pressure sensor.

9. The apparatus of claim 6 wherein the sensor is a vibration sensor.

10. apparatus of claim 6 wherein the sensor is a power sensor.