# US 5,704,510 A · Top lock lid

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- Number: US 5,704,510 A
- Document ID: US5704510A
- Status: Granted
- Kind: A
- Application number: 08/576,374
- Filed: 1995-12-21
- Granted: 1998-01-06
- Earliest claimed: 1995-12-21
- Inventors: Charles H. Feltman, III; Dirk G. Langer
- Web page: https://patentgrep.com/patent/US5704510A

## CPC

- A47G 19/2272: {from drinking glasses or cups comprising lids or covers}
- A47G 19/2211: {Lip- or moustache-protecting devices for drinking glasses; Strainers set in a movable or fixed manner in the glasses}
- A47G: HOUSEHOLD OR TABLE EQUIPMENT (book-ends A47B5/00; knives B26B)

## Abstract

A mug comprising a container and a lid, with the container having an inwardly projecting seal rim and inwardly projecting retainers spaced above the seal rim. The lid has a disc for engagement with the upper surface of the seal rim with a retainer opening for passing the retainer, and a catch for positioning under the retainer to retain the lid in the container on the seal rim. The retainer may be formed integrally with the container, or may be a stud carried in an opening in the container. The catch of the lid preferably includes a flexible center with a ramp at each end joining the catch to the disc.

## Claims

### Claim 1

A mug comprising a container and a lid,
said container having an inwardly projecting seal rim and inwardly projecting retainer means spaced above said seal rim,
said lid having a disc for engagement with an upper surface of said seal rim with a retainer opening for passing said retainer means, and a catch for positioning under said retainer means to retain said lid in said container on said seal rim,
with said catch of said lid including a flexible center with a ramp at each end joining said catch to said disc, and with said flexible center spaced above the surface of said disc.

### Claim 2 (depends on 1)

The mug as defined in claim 1 wherein said retainer means is formed integrally with said container.

### Claim 3 (depends on 1)

The mug as defined in claim 1 wherein said retainer means includes two oppositely positioned bosses, and with two of said catches oppositely positioned on said lid, each of said catches having a flexible center with a ramp at each end joining said catch to said disc.

### Claim 4

A mug comprising a container and a lid,
said container having an inwardly projecting seal rim and inwardly projecting retainer means spaced above said seal rim,
said lid having a disc for engagement with an upper surface of said seal rim with a retainer opening for passing said retainer means, and a catch for positioning under said retainer means to retain said lid in said container on said seal rim,
said retainer means including a stud carried in a radial opening in said container.

### Claim 5 (depends on 4)

The mug as defined in claim 4 wherein said stud has an outer flange and is pushed into said radial opening in said container with said outer flange engaging a container outer wall.

### Claim 6

A mug comprising a container and a lid,
said container having an inwardly projecting seal rim and inwardly projecting retainer means spaced above said seal rim,
said lid having a disc for engagement with an upper surface of said seal rim with a retainer opening for passing said retainer means, and a catch for positioning under said retainer means to retain said lid in said container on said seal rim,
said catch of said lid including a flexible center with a ramp at each end joining said catch to said disc, with said center having a serrated upper surface.

### Claim 7

A lid for a mug having an inwardly projecting seal rim and inwardly projecting retainer means spaced above said seal rim,
said lid having a disc for engagement with an upper surface of said seal rim with a retainer opening for passing said retainer means, and a catch for positioning under said retainer means to retain said lid in said container on said seal rim,
said catch of said lid including a flexible center with a ramp at each end joining said catch to said disc, and with said center having a serrated upper surface.

### Claim 8 (depends on 7)

The lid as defined in claim 7 wherein said flexible center is spaced above said disc.

### Claim 9 (depends on 7)

The lid as defined in claim 7 wherein said retainer means includes two oppositely positioned bosses, and with two of said catches oppositely positioned on said lid, each of said catches having a flexible center with a ramp at each end joining said catch to said disc.