BUSHING, FUSE AND FUSEHOLDER

• US 3,829,810 A
• Filed: 12/22/1971
• Issued: 08/13/1974
• Est. Priority Date: 12/22/1971
• Status: Expired due to Term

• Current Assignee: Bertrand V. Giegerich
• Original Assignee: Bertrand V. Giegerich
• Inventors: Giegerich, Bertrand V.
• Primary Examiner(s): Miller, J. D.
• Assistant Examiner(s): Bell, Fred E.
• Application Number:
  US05/211,017
• Time in Patent Office: 965 Days
• Field of Search: 174/17CT,137R,18,73R,153R 337/202,186,187,201,205,207
• US Class Current: 337/202
• CPC Class Codes: H01B 17/005 Insulators structurally associated with built-in electrical equipment
• CPC Class Codes: H01H 85/542 the intermediate or auxiliary part being provided with bayonet-type locking means

Abstract

A bushing, fuse and fuseholder especially useful in electrical apparatus such as distribution transformers for underground power distribution systems. The electrical apparatus is provided with a bushing, a fuse and a fuseholder, the fuseholder being secured to the wall of the apparatus and extending into the interior thereof. The bushing has the fuse secured thereto and is inserted into the fuseholder. The bottom of the fuse makes electrical contact with a lower contact in the fuseholder. The upper portion of the fuse makes contact with the bushing to provide electrical continuity through the bushing and the fuse to the bottom contact in the fuseholder. The bushing may be in the form of an adapter to receive a standard bushing insert or it may include the insert. A standard elbow termination or similar member may be attached to the bushing to energize the electrical apparatus through the fuse and fuseholder. In another embodiment, the fuseholder has a second contact to allow use with loop feed distribution.

Claims

1. A bushing, fuse and fuseholder in combination, comprising:

a. a fuseholder formed of a high dielectric strength resinous material, 1. said fuseholder having a metal flange molded therein, said metal flange being rigidly secured to the wall portion of an electrical apparatus, 2. said fuseholder having an electrical contact secured in the bottom of said fuse holder and extending therethrough, 3. said fuseholder having a tapered opening adjacent said metal flange, b. a bushing member, said bushing member having a tapered portion complementary to said tapered opening of said fuseholder, c. a fuse member, said fuse member secured to said tapered portion of said bushing and extending into said fuseholder, said fuse member having a contact engaging said electrical contact in the bottom of said fuseholder.

2. A bushing, fuse and fuseholder as set forth in claim 1 in which said bushing member is an adapter and has means for receiving and for securing a bushing insert thereto, said means including a portion extending through said adapter and secured to said fuse.

3. said fuseholder having a tapered opening adjacent said metal flange b. a bushing member, said bushing member mounted in said fuseholder and having a tapered portion complementary to and in contact with said tapered opening of said fuseholder,

4. A bushing, fuse and fuseholder as set forth in claim 3 in which locking flanges are provided on said wall portion of an electrical apparatus, said locking flanges having slots for receiving said locking pins.

5. A bushing, fuse and fuseholder, as set forth in claim 1 in which said bushing member is an integral member having an outer portion adapted to receive a cable termination and said tapered portion forms the inner portion of said bushing member.

6. A bushing, fuse and fuseholder as set forth in claim 5 in which said inner portion is provided with a flange, a bail, pivot means pivoting said bail to said flange, and locking pins on said bail adjacent to but spaced from said pivot means.

7. A bushing, fuse and fuseholder as set forth in claim 6 in which locking flanges are provided on said wall portion of an electrical apparatus, said locking flanges having locking slots for receiving said locking pins.

8. A bushing, fuse and fuseholder in combination, comprising:

a. a fuseholder formed of a high dielectric strength resinous material,

9. A bushing, fuse and fuseholder in combination comprising:

a. a fuseholder formed of a high dielectric strength resinous material,

10. A bushing, fuse and fuseholder as set forth in claim 9 in which said bushing member has a flange molded therein, a bail member, pivot means pivotally securing said bail to said flange and locking pins on said bail, said locking pins being adjacent to but spaced from said pivot means.

11. A bushing, fuse and fuseholder as set forth in claim 10, in which said bail, said pivot means and said flange cooperate to permit insertion of said fuse by said bail into said fuseholder in a horizontal position.