(Classified) PROPOSAL NO. 229

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP67B00511R000100130007-0
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 2
• Document Creation Date: December 22, 2016
• Document Release Date: June 9, 2010
• Sequence Number: 7
• Publication Date: May 16, 1961
• Content Type: LETTER

Sanitized Copy Approved for Release 2010/06/09: CIA-RDP67BOO51 1 R0001 00130007-0
KAISER AIRCRAFT & ELECT NICS
DIVISION OF KAISER INDUSTRIES CORP RATION
r -3S C 0
2955 East Colorado Boulevard
Pasadena, California
yna ivietric, inc.
Attention:
Subject:
Gentlemen:
Kaiser Proposal No. 229
In reponse to verbal requests from Dyna Metric, Inc., Kaiser
proposes to exert its best efforts in utilizing the following
method to produce a sealed window.
P.O. BOX 275, STATION A, PALO ALTO, CALIFORNIA/DAvenport 1-3320
May 16, 1961
Ref: DJO-02-61
Two pieces of plate glass will be sandwiched together
with an 0-ring used as a separator. The 0-ring will
also serve as a seal so that a vacuum can be obtained
in the area between the two panels of glass. Tubula-
tion will be attached to an ionization gage so that a
reading of vacuum pressure inside the sealed area can
be recorded.
STAT
Kaiser also considered the possibility of using fused quartz to
metal seals. This type of seal is very complex and requires
metalizing the surface of the quartz where the seal is to be
made. We have been unable to find any reference to seals of
this kind with diameters of larger than one inch. This method
might be possible in the future, but would require a long
development contract. The use of other types of high temperature
glass to metal seals might be possible, but at present they
appear to be as complicated as the quartz to metal seal.
0-ring technique is the right approach.
If the 0-ring technique proves, feasible it could be a means of
making a low cost vacuum window in the future. We cannot
guarantee that our efforts will be successful, but information
obtained from the test to be made will indicate whether the
\A/RCRAFT 6
ELECTRON/CS
Sanitized Copy Approved for Release 2010/06/09: CIA-RDP67BOO51 1 R000100130007-0
 Sanitized Copy Approved for Release 2010/06/09: CIA-RDP67BOO51 1 R0001 00130007-0
KAISF,. u VIY1l.J
WEST COAST ELECTRONICS LAWATORY ?
Dyna Metric, Inc.
-2- May 16, 1961
DJO-02-61
Kaiser proposes that a fixed price purchase order in the
amount of 800.00 be written to provide for this best efforts
program. If this proposal is acceptable we will begin work
immediately upon receipt of written authority from Dyna Metric.
It is estimated the task can be completed within two to four
weeks after receipt of approval to proceed.
We welcome the opportunity to work with Dyna Metric and we look
forward to receiving your reply in the near future.
Very truly yours,
STAT
Plant Manager
Sanitized Copy Approved for Release 2010/06/09: CIA-RDP67BOO51 1 R000100130007-0