Browse Prior Art Database

Glass Seal Holding Fixture

IP.com Disclosure Number: IPCOM000060291D
Original Publication Date: 1986-Mar-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 2 page(s) / 36K

Publishing Venue

IBM

Related People

Anschel, M: AUTHOR [+2]

Abstract

A rack and pinion glass holding fixture allows for the maintaining of a constant pressure on a glass window which is to be fused to a laser tube. The design of the fixture is such that a predetermined, uniform, perpendicular force can be applied to the glass window when angled to the laser tube. In the figure, a jig frame 1 with weight support 3 is shown with rack 5 and pinion assembly 7 attached and supported thereto. Pinion assembly 7 includes a gear 9 with through bore 11 fixedly attached to arm 13 with a weight 15 suspended at the opposite to said gear end of the arm. Carbon shoe 17 is hollowed out to the roundness of plunger 5 and adjusts itself during sealing in order to deliver a more uniform weight distribution over the entire window.

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Glass Seal Holding Fixture

A rack and pinion glass holding fixture allows for the maintaining of a constant pressure on a glass window which is to be fused to a laser tube. The design of the fixture is such that a predetermined, uniform, perpendicular force can be applied to the glass window when angled to the laser tube. In the figure, a jig frame 1 with weight support 3 is shown with rack 5 and pinion assembly 7 attached and supported thereto. Pinion assembly 7 includes a gear 9 with through bore 11 fixedly attached to arm 13 with a weight 15 suspended at the opposite to said gear end of the arm. Carbon shoe 17 is hollowed out to the roundness of plunger 5 and adjusts itself during sealing in order to deliver a more uniform weight distribution over the entire window. In operation, plunger weight 15 exerts a constant downward force causing pinion gear 9 to rotate clockwise on pin 19. This clockwise rotation drives plunger 5 and carbon shoe 17, thereby, to seat window 19 to laser tube 21. The fixture is a significant advance over the previous used fixtures in that leak tight seals are able to be maintained, while: 1. the fixture is able to maintain the window and laser in proper position to each other prior to and throughout the fusion cycle, 2. the fixture is self-adjusting to compensate for shrinkage during sealing, and 3. the fixture holds the window at proper angle under a predetermined load during the cooling cycle.

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