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Curtis H Graber

from Fort Wayne, IN
Age ~66
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Also known as:
Curt H Graber, Curtis H Revocabl
Related to:
Saeed EtamadiAudrey K Meier, 58Austin D Graber, 32Sarah Caitlyn GraberStephanie A Graber, 59Brandon C Graber, 31
Connected to:
Antoinette F Graber, 56Bettina C Graber, 85Blair S Graber, 57Brad A Graber, 45Brian T Graber, 45Charles L Graber, 54Cory M Graber, 33Destiny Graber, 38Donald R Graber, 75Ehren J Graber, 42

Curtis Graber Phones & Addresses

  • Fort Wayne, IN
  • Lincoln, NE
  • Norfolk, NE
  • Milwaukee, WI

Resumes

Resumes

Curtis Graber Photo 1

Curtis Graber

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Curtis Graber Photo 2

President At Csd Inc. And Owner, Csd Inc.

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Location:
Fort Wayne, Indiana Area
Industry:
Electrical/Electronic Manufacturing
Curtis Graber Photo 3

National Account Manager At Navistar

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Location:
Fort Wayne, Indiana Area
Industry:
Automotive
Curtis Graber Photo 4

Curtis Graber

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Business Records

Name / Title
Company / Classification
Phones & Addresses
Curtis Graber
President
Custom Sound Design Inc
Construction · Radio, Tv & Other Electronics Stores
9301 Roberts Rd, Woodburn, IN 46797
1 Main, Woodburn, IN 46797
(260) 657-8011, (260) 657-1670

Publications

Us Patents

Loudspeaker For Line Array Sound System

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US Patent:
6870942, Mar 22, 2005
Filed:
Sep 3, 2003
Appl. No.:
10/654050
Inventors:
Curtis H. Graber - Woodburn IN, US
International Classification:
H04R025/00
US Classification:
381349, 381182, 381342, 381345, 181144
Abstract:
A loudspeaker assembly includes a housing defining a bass-reflex enclosure. The housing has a trapezoidal cross-sectional shape in a vertical section running from front to back of the housing. A conventional low frequency cone woofer is mounted in an aperture in the front face of the enclosure. An elongated port is defined in part by one of the sides of the housing and its top and bottom sides. The elongated port has varying vertical and horizontal cross sectional dimensions to conform to the sides of the enclosure while maintaining a constant cross sectional area. A planar is mounted to the front face of the enclosure over a tuned rear chamber.

Increased Lf Spectrum Power Density Loudspeaker System

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US Patent:
7277552, Oct 2, 2007
Filed:
Aug 9, 2004
Appl. No.:
10/914653
Inventors:
Curtis E. Graber - Woodburn IN, US
International Classification:
H04R 1/28
US Classification:
381182, 381351, 181199
Abstract:
The power density of a bass-reflex enclosure is improved by providing transducers in pairs, with the members of each pair being oriented front to back with respect to one another. The transducers are mounted on the enclosure with at least one of the transducers being substantially perpendicular to a front face of the enclosure and having its backside partially rested in the second transducer of the pair. The gap between the transducers is wider on the side open to the surrounding environment through the front face. Directivity may be provided by incorporating a second pair of transducers.

Subwoofer With Cascaded Linear Array Of Drivers

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US Patent:
7454030, Nov 18, 2008
Filed:
Aug 27, 2003
Appl. No.:
10/649040
Inventors:
Curtis H. Graber - Woodburn IN, US
International Classification:
H04R 1/02
H04R 1/20
US Classification:
381341, 381342, 381 97, 381186, 181152, 181145, 181177
Abstract:
A single folded, expanding horn loudspeaker reproduces low frequency audible sound at high power output levels. A compact enclosure houses a plurality of identical transducers, characterized by small vibrational surface areas. The throats for each transducer into the horn are acoustically differentially spaced from the mouth of the horn. Transducer drive circuitry adjusts a drive signal for the transducers to compensate for the different impedance and propagation time to the horn mouth at each throat.

Housing For Acoustic Projector

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US Patent:
D591726, May 5, 2009
Filed:
Jan 16, 2008
Appl. No.:
29/294532
Inventors:
Curtis E. Graber - Woodburn IN, US
International Classification:
1401
US Classification:
D14216

Sonic Boom Simulator

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US Patent:
7530424, May 12, 2009
Filed:
Nov 23, 2005
Appl. No.:
11/286486
Inventors:
Curtis E. Graber - Woodburn IN, US
International Classification:
G10K 11/18
G01M 7/08
G10K 11/00
G01M 7/00
US Classification:
181 05, 181151, 181139, 73571, 738656
Abstract:
A supersonic boom simulator constructed from a directed coherent sound pulse source, a waveguide and a bass trap at the opposite end of the waveguide from the directed coherent sound pulse source.

Acoustic Energy Projection System

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US Patent:
7621369, Nov 24, 2009
Filed:
Jun 16, 2006
Appl. No.:
11/454914
Inventors:
Curtis E. Graber - Woodburn IN, US
International Classification:
G10K 11/28
US Classification:
181191, 181153, 181155, 181176, 381336
Abstract:
The sound generating and transmitting apparatus is based on a radiator including at least a first, and possibly two or more, shaped reflecting surface(s) having a forward radiant axis. Each of the shaped reflecting surfaces defines sets of equivalent acoustic input locations, with each set being a ring of non-zero circumference centered on the forward radiant axis. The sound source is a distributed, functionally continuous sound source adapted to exploit this feature. In its preferred form the sound source is a sort of closed line array of loudspeakers providing a torodial shaped acoustic source to direct at the hyperbolic cone, the transducers being disposed in a circle with all of the loudspeakers oriented inwardly toward or outwardly from the forward radiant axis.

Enclosure For Symbiotic Active/Passive Operation Of An Acoustic Driver

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US Patent:
7624839, Dec 1, 2009
Filed:
May 12, 2006
Appl. No.:
11/433472
Inventors:
Curtis E. Graber - Woodburn IN, US
International Classification:
H04R 1/28
US Classification:
181156, 181145, 181148, 181152, 181199, 381335, 381349, 381351
Abstract:
A compact loudspeaker enclosure combines planar type devices for high frequency sound reproduction and cone type active devices for low frequency sound reproduction. The low frequency cone type transducers are mounted in baffles between forward and rear enclosed spaces and thus do not directly radiate into the environment. The first enclosed space is acoustically coupled to the environment by the planar device which is mounted between the first enclosed space and the environment with one major face mounted to radiate either directly into the environment or to be horn loaded. The planar operates as a passive radiator to the LF devices at low frequencies and an active device above a crossover frequency.

Acoustic Hailing Device Enclosure

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US Patent:
D608347, Jan 19, 2010
Filed:
May 29, 2009
Appl. No.:
29/315141
Inventors:
Curtis E. Graber - Woodburn IN, US
International Classification:
1401
US Classification:
D14216
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Curtis H Graber from Fort Wayne, IN, age ~66 Get Report