# US 2014/0150209 A1 · Lift adjust sliding door roller

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- Number: US 2014/0150209 A1
- Document ID: US20140150209A1
- Status: Published application
- Kind: A1
- Application number: 13/725,596
- Filed: 2012-12-21
- Published: 2014-06-05
- Earliest claimed: 2012-12-04
- Assignees: Milgard Manufacturing Incorporated
- Applicants: Milgard Manufacturing Incorporated
- Inventors: Drannan Tidwell
- Web page: https://patentgrep.com/patent/US20140150209A1

## CPC

- E05D 15/0669: {with height adjustment}
- E05Y 2201/638: Cams; Ramps
- E05Y 2900/132: Doors
- E05D: HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS (pivotal connections in general F16C11/00)
- E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF

## Abstract

A sliding door roller system comprising a wheel housing, two roller wheels rotatably coupled to the wheel housing, an upper base, a second housing configured to be secured to a door and a ratchet mechanism coupled to the first housing and second housing, discretely stepping the second housing away from the first housing in a plurality of positions.

## Claims

### Claim 1

A sliding door roller system comprising:
a wheel housing;
two roller wheels rotatably coupled to the wheel housing;
an upper base;
a second housing configured to be secured to a door; and
a ratchet mechanism coupled to the first housing and second housing, discretely stepping the second housing away from the first housing in a plurality of positions.

### Claim 2 (depends on 1)

The sliding door roller system of claim 1, further including at least one spring between the ratchet mechanism and the door activating the ratchet upon lifting door in a direction away from the first housing.

### Claim 3 (depends on 1)

The sliding door roller system of claim 1, wherein the ratchet mechanism contains a ratchet wheel wherein the ratchet wheel contains at least one gear wheel.

### Claim 4 (depends on 1)

The sliding door roller system of claim 1, wherein the ratchet wheel is mounted off-center.

### Claim 5 (depends on 3)

The sliding door roller system of claim 3 wherein the ratchet mechanism comprises a ratchet mechanism housing.

### Claim 6 (depends on 5)

The sliding door roller system of claim 5, wherein the ratchet mechanism housing is contains at least one tooth.

### Claim 7 (depends on 1)

The sliding door roller system of claim 1, wherein the ratchet mechanism is located above the two roller wheels.

### Claim 8 (depends on 1)

The apparatus of claim 1, wherein the wheel housing comprises at least one tooth.

### Claim 9 (depends on 1)

The apparatus of claim 1, wherein the wheel housing comprises two plates.

### Claim 10

A sliding door roller system comprising:
a wheel assembly comprising:
a first wheel axle,
a second wheel axle,
a first wheel housing plate,
a second wheel housing plate,
a first wheel, and
a second wheel;
a ratchet housing movably located between the first wheel housing plate and the second wheel housing plate, the ratchet having at least one pawl;
a cam having a gear offset from a center of the cam, the gear having gear teeth operatively engaging the pawl;
a spring biased platform extending from the ratchet housing in a direction away from the first wheel and second wheel;
wherein, the cam is rotated relative to the wheel assembly moving the platform relative to the first wheel and second wheel.

### Claim 11 (depends on 10)

The sliding door roller system of claim 10, wherein the ratchet housing includes grooves defining the ratchet housing pawl.

### Claim 12 (depends on 11)

The sliding door roller system of claim 11, wherein the wheel housing plate includes a wheel housing pawl.

### Claim 13 (depends on 12)

The sliding door roller system of claim 12, wherein the ratchet housing includes an angled slot relative to the support platform.

### Claim 14 (depends on 13)

The sliding door roller system of claim 13, wherein the pin extends through the angled slot.

### Claim 15 (depends on 14)

The sliding door roller system of claim 14, the second housing plate contains a long tooth and a short tooth and interface with the cam.

### Claim 16 (depends on 10)

The sliding door roller system of claim 10, wherein the cam has an outer periphery with treads.

### Claim 17 (depends on 10)

The sliding door roller system of claim 10, wherein at least one housing plate contains at least one tooth.

### Claim 18 (depends on 10)

The sliding door roller system of claim 10, wherein the cam is mounted off-center.

### Claim 19 (depends on 18)

The sliding door roller system of claim 18, wherein the cam raises and lowers the adjustment plate.

### Claim 20

A method for aligning a door using a sliding door roller system, comprising:
placing a door on a horizontal platform of the sliding door roller system;
lifting the door away from the sliding door roller system;
ratcheting the sliding door roller system to change elevations on the horizontal platform;
replacing the door on the horizontal platform;
comparing the door's new position with a benchmark;
repeating lifting the door if the new position does not meet the benchmark or stopping if the new position meets the benchmark.