Casing with improved drain hole

• US 6,728,480 B1
• Filed: 03/06/2003
• Issued: 04/27/2004
• Est. Priority Date: 03/06/2003
• Status: Expired due to Fees

• Current Assignee: Elmo Co., Ltd. (TECHNO HORIZON Co., Ltd.)
• Original Assignee: Elmo Co., Ltd. (TECHNO HORIZON Co., Ltd.)
• Inventors: Maruyama, Kenichi, Maeda, Haruo
• Primary Examiner(s): Gray, David M.
• Application Number:
  US10/383,136
• Time in Patent Office: 418 Days
• Field of Search: 396/25, 396/27, 396/535, 396/427, 220/4.02, 220/664, 324/156, 362/546, 362/547, 348/373, 348/374
• US Class Current: 396/25
• CPC Class Codes: G03B 17/08 Waterproof bodies or housings
• CPC Class Codes: G08B 13/19619 Details of casing

Abstract

A casing for encasing equipment installed outdoors, such as a monitoring camera, includes a bottom having a drain hole formed through the bottom. The drain hole includes a first part and a second part having a larger inner diameter than the first part. The second part is open at an underside of the casing.

Claims

1. A casing for encasing a camera, comprising a bottom having a circular drain hole formed therethrough, the drain hole including a first part and a second part having a larger diameter than the first part and coaxial with the first part, the second part being open at an underside of the casing.

2. A casing according to claim 1, wherein the underside of the casing is formed with a protrusion having a distal end where the second part of the drain hole is open.

3. A casing according to claim 1, wherein the drain hole has a stepped portion defined between the first and second parts.