# US 8,540,069 B2 · Kinematically-driven slow delivery lubrication system

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- Number: US 8,540,069 B2
- Document ID: US8540069B2
- Status: Granted
- Kind: B2
- Application number: 13/513,971
- Filed: 2009-12-18
- Published: 2012-11-15
- Granted: 2013-09-24
- Earliest claimed: 2009-12-18
- Assignees: Otis Elevator Company
- Applicants: Walter Srb-Gaffron; Uwe Fritz; Abdullah Ercan
- Inventors: Walter Srb-Gaffron; Uwe Fritz; Abdullah Ercan
- Web page: https://patentgrep.com/patent/US8540069B2

## CPC

- B66B 31/00: Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning (for safety B66B29/00)
- B66B: ELEVATORS; ESCALATORS OR MOVING WALKWAYS ({apparatus for raising or lowering persons on theatrical stages or the like A63J5/12} ; funicular railbound systems with rigid ground-supported tracks and cable traction, e.g. cliff railways, B61B9/00; arrangements of ammunition handlers in vessels B63G3/00; hoists, lifts, or conveyors for loading or unloading in general B65G; braking or detent devices controlling normal movements of winding drums or barrels B66D; ship-lifting devices E02C; garages for many vehicles with mechanical means for lifting vehicles E04H6/12; hoists for feeding ammunition or projectiles to launching apparatus or to loading mechanisms F41A9/00)

## Abstract

Lubrication systems for transport systems are disclosed that are powered by a rotating shaft of the transport system. The lubrication system includes at least one circular member mounted on the rotating shaft. The at least one circular member is coupled to and imparts rotation to a third circular member and separately to a fourth circular member for imparting rotation there to. The third circular member is coupled to a first linkage. The first linkage extends from the third circular member to a fifth circular member. The fourth circular member is coupled to a second linkage. The second linkage couples the fourth circular member to the first linkage between the third and fifth circular members. The fifth circular member is coupled to a pump shaft.

## Claims

### Claim 1

A lubrication system driven by a rotating shaft, the system comprising:
at least one circular member mounted on the rotating shaft, the at least one circular member being coupled to and imparting rotation to a third circular member and being coupled to and imparting rotation to a fourth circular member;
the third circular member being coupled to a first linkage, the first linkage extending from the third circular member to a fifth circular member, the fourth circular member being coupled to a second linkage, the second linkage coupling the fourth circular member to the first linkage between the third and fifth circular members;
wherein the fifth circular member is coupled to a pump shaft;
whereby rotation of the third and fourth circular members imparts rotational movement to the fifth circular member and imparts axial movement to the fifth circular member and pump shaft, which in turn pumps lubricant.

### Claim 2 (depends on 1)

The system of claim 1 wherein the third circular member includes an outer periphery, the third circular member coupled to the first linkage at a first joint disposed along the outer periphery of the third circular member.

### Claim 3 (depends on 1)

The system of claim 1 wherein the fourth circular member includes an outer periphery, the fourth circular member coupled to the second linkage at a second joint disposed radially inwardly from the outer periphery of the fourth circular member.

### Claim 4 (depends on 1)

The system of claim 1 wherein the at least one circular member comprises first and second circular members coaxially mounted to the rotating shaft.

### Claim 5 (depends on 1)

The system of claim 1 wherein the third and fifth circular members include outer peripheries, the first linkage extending between and pivotally coupling the outer peripheries of the third and fifth circular members.

### Claim 6 (depends on 1)

The system of claim 1 wherein the fourth circular member comprises an outer periphery that is coupled to the at least one circular member, the fourth circular member further comprising an inner ring, the second linkage being coupled to the inner ring of the fourth circular member at a first joint disposed radially inwardly from the outer periphery of the fourth circular member, second linkage pivotally coupling the inner frame of the fourth circular member to the first linkage at a second joint disposed between the third and fifth circular members.

### Claim 7 (depends on 1)

The system of claim 1 wherein the pump shaft is a cylinder.

### Claim 8 (depends on 1)

The system of claim 1 wherein the pump shaft is a piston.

### Claim 9 (depends on 4)

The system of claim 4 wherein first and second circular members have diameters that are about equal.

### Claim 10

A lubrication system driven by a rotating shaft, the system comprising:
a first circular member and a second circular member coaxially mounted on the rotating shaft for rotation with said rotating shaft, the first circular member being coupled and imparting rotation to a third circular member, the second circular member being coupled and imparting rotation to a fourth circular member;
combined diameters of the first and third circular members being different than combined diameters of the second and fourth circular members;
the third circular member-being pivotally coupled to a first rigid linkage, the first rigid linkage extending from the third circular member to a fifth circular member and being pivotally coupled to the fifth circular member, the fourth circular member being pivotally coupled to a second rigid linkage, the second rigid linkage pivotally coupling the fourth circular member to the first rigid linkage between the third and the fifth circular members;
the fifth circular member being coaxially mounted to a pump shaft;
wherein rotation of the third and fourth circular members imparts rotational movement to the fifth circular member and imparts axial movement to the fifth circular member and pump shaft, which in turn pumps lubricant.

### Claim 11 (depends on 10)

The system of claim 10 wherein the third circular member includes an outer periphery, the third circular member-coupled to the first rigid linkage at a first joint disposed along the outer periphery of the third circular member.

### Claim 12 (depends on 10)

The system of claim 10 wherein the fourth circular member includes an outer periphery, the fourth circular member coupled to the second rigid linkage at a second joint-disposed radially inwardly from the outer periphery of the fourth circular member.

### Claim 13 (depends on 10)

The system of claim 10 wherein the first, second, third and fourth circular members include outer peripheries, the outer periphery of the first circular member being coupled to the outer periphery of the third circular member, the outer periphery of the second circular member being coupled to the outer periphery of the fourth circular member.

### Claim 14 (depends on 10)

The system of claim 10 wherein the third and fifth circular members include outer peripheries, the first rigid linkage extending between and pivotally coupling the outer peripheries of the third and fifth circular members together.

### Claim 15 (depends on 10)

The system of claim 10 wherein the fourth circular member comprises an outer periphery that is coupled to the second circular member, the fourth circular member further comprising an inner frame, the second rigid linkage being coupled to the inner frame of the fourth circular member at a first joint-disposed radially inwardly from the outer periphery of the fourth circular member, second rigid linkage pivotally coupling the inner frame of the fourth circular member to the first rigid linkage at a second joint disposed on the first rigid linkage between the third and fifth circular members.

### Claim 16 (depends on 10)

The system of claim 10 wherein the pump shaft is a cylinder.

### Claim 17 (depends on 10)

The system of claim 10 wherein the pump shaft comprises a piston axially disposed within a cylinder.

### Claim 18 (depends on 10)

The system of claim 10 wherein first and second circular members have diameters that are about equal.

### Claim 19

A method for pumping lubricant slowly using a rotating shaft of a transport system, the method comprising:
coaxially mounting a first circular member and a second circular member on the rotating shaft for rotation with the rotating shaft;
providing coaxial third, fourth and fifth circular members and a pump shaft coaxially coupled to the fifth circular member;
coupling the first circular member to the third circular member and the second circular member the fourth circular member for imparting rotation to the third and fourth circular members respectively;
coupling the third circular member to the fifth circular member with a rigid first linkage;
coupling the fourth circular member to the first rigid linkage with a second rigid linkage at a joint disposed between the third and fifth circular members;
rotating the first and second circular members with the rotating shaft thereby rotating the third and fourth circular members, thereby rotating the fifth circular member and causing the fifth circular member and pump shaft to move axially, thereby pumping lubricant with the pump shaft.

### Claim 20 (depends on 19)

The method of claim 19 wherein the providing of the third and fourth circular members further comprises providing the third and fourth circular members with different diameters whereby varying a ratio of the fourth diameter to the third diameter varies a pump cycle period of the pump shaft.
