PARKER W HIRTLE
Architects in Lexington, MA
License number
Massachusetts 1693
Expiration Date
Aug 31, 1999
Type
Architect
Address
Address
Lexington, MA 02421
Professional information
Partition System For Open Plan Office Spaces
US Patent:
4476572, Oct 9, 1984
Filed:
Sep 18, 1981
Appl. No.:
6/303496
Inventors:
Thomas R. Horrall - Harvard MA
Parker W. Hirtle - Lexington MA
Parker W. Hirtle - Lexington MA
Assignee:
Bolt Beranek and Newman Inc. - Cambridge MA
International Classification:
H04R 300, H04K 300
US Classification:
381 73
Abstract:
The partition system disclosed herein incorporates apparatus for generating a speech masking acoustic field. Respective speakers are mounted near the bottom of each of a plurality of partition panel segments defining each work space and are aimed horizontally. These speakers are driven by respective signals which are subjectively incoherent as to frequencies of interest in the masking spectrum, thereby to provide a sound field without perceptible discontinuities.
Closure Seal And Method
US Patent:
3968597, Jul 13, 1976
Filed:
Jan 13, 1972
Appl. No.:
5/217534
Inventors:
Parker W. Hirtle - Lexington MA
Assignee:
Bolt Beranek and Newman, Inc. - Cambridge MA
International Classification:
E06B 716
US Classification:
49477
Abstract:
This disclosure deals with a novel closure seal embodying the compression of a region of a tubular member adjacent a door mounting edge during closure of the door, to pump air into a communicating region of the member disposed along the bottom edge of the door, to expand the same into a seal upon total closure of the door.