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Browse Prior Art Database

Cylindrical Capacitor Retention System

IP.com Disclosure Number: IPCOM000052957D
Original Publication Date: 1981-Aug-01
Included in the Prior Art Database: 2005-Feb-12
Document File: 2 page(s) / 50K

Publishing Venue

IBM

Related People

Pasterchick, H: AUTHOR [+2]

Abstract

The article describes inexpensive, onepiece retainers for can type capacitors mounted on a printed circuit board.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 81% of the total text.

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Cylindrical Capacitor Retention System

The article describes inexpensive, onepiece retainers for can type capacitors mounted on a printed circuit board.

Fig. 1 shows two can-type capacitors 10 and 12 which are soldered directly to conductive paths on a printed circuit board 14. The capacitors 10 and 12 can be held in place by an elastomeric retainer 16 having retaining rings 18 and 20 and a central, capacitor-separating rib 22. The walls of the central rib 22 are semi-circular to conform to the shape of the capacitors 10 and 12. A pair of mounting feet 24 and 26 extend from the bottom of rib 22. The mounting feet terminate in pull tabs 28 and 30.

When the capacitors 10 and 12 have been mounted on board 14, the retainer 16 is lowered into place with the pull tabs 28 and 30 protruding through holes (such as hole 32) in the board 14. The pull tabs are used to force the mounting feet through the board holes until the shoulder at the upper end of each mounting foot clears the underside of the board. The retaining rings 18 and 20 can be stretched to grip the tops of capacitors 10 and 12.

Fig. 2 shows an alternate elastomeric or molded plastic embodiment in which a retaining ring 34 has two semi-circular arms with overlapping ends 36 and 38. The ends are provided with interlocking teeth which, when meshed, close the ring about the top of the capacitor.

Fig. 3 shows a molded plastic retainer having a solid top plate 40 which may include circular recesses (not shown) for...