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Frederick D Ezekiel

from Lexington, MA
Age ~95
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Also known as:
Fredk D Ezekiel, Fred D Ezekiel, Fredrick D Ezekiel
Phone and address:
75 Allen St, Lexington, MA 02421
(781) 274-9373
Related to:
Steven D Handmaker, 60
Connected to:
Ashley Ezekiel, 35Barbara S Ezekiel, 78Bradley W Ezekiel, 28Danny Ezekiel, 34Edward A Ezekiel, 34Kelli B Ezekiel, 56Mark Ezekiel, 71Sylvia Ezekilova, 59Christina Ezekwe, 68Dorothy I Ezekwe, 54

Frederick Ezekiel Phones & Addresses

  • 75 Allen St, Lexington, MA 02421 (781) 274-9373 (781) 862-8225 (781) 862-9244
  • West Yarmouth, MA

Professional Records

License Records

Frederick Ezekiel

Address:
Lexington, MA 02421
License #:
13066 - Expired
Issued Date:
Jul 14, 1960
Expiration Date:
Jun 30, 1994
Type:
Mechanical Engineer

Business Records

Name / Title
Company / Classification
Phones & Addresses
Frederick D. Ezekiel
President, Chief Executive Officer
Servoflo Corporation
Electrical/Electronic Manufacturing · Whol Industrial Equipment Engineering Services
75 Allen St, Lexington, MA 02421
(781) 862-9572
Frederick W. Ezekiel
President
STONEY BEACH ENTERPRISES, INC
261 Main St, Charlestown, MA 02129
35 Auburn St, Charlestown, MA 02129

Publications

Us Patents

Angular Information Transducer Mounting

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US Patent:
43862705, May 31, 1983
Filed:
Jun 8, 1981
Appl. No.:
6/271557
Inventors:
Frederick D. Ezekiel - Lexington MA
Assignee:
Data Technology, Inc. - Woburn MA
International Classification:
H01J 314
US Classification:
250231SE
Abstract:
An optical encoder housing is rotatably mounted upon a hub secured to the shaft of a motor typically by a set screw. The hub also carries the encoder disc. A circular leaf spring is fastened by studs to the motor housing and the encoder housing. Alternatively a spring couples the hub to the motor shaft while the encoder housing is secured to the motor housing.

Magnetic Liquid Shaft Sealing

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US Patent:
42931371, Oct 6, 1981
Filed:
Dec 11, 1978
Appl. No.:
5/968370
Inventors:
Frederick D. Ezekiel - Lexington MA
International Classification:
F16J 1516
F16J 1540
US Classification:
277 80
Abstract:
A magnetic liquid seal comprises a single axially magnetized permanent magnet in the shape of a flat washer having magnetic liquid captured on the inside or outside diameters, or both. Leakproof sealing is achieved between either the outside diameter and an external housing or between the inner diameter and an external shaft.

Magnetic Liquid Protector

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US Patent:
41677269, Sep 11, 1979
Filed:
Nov 7, 1977
Appl. No.:
5/849223
Inventors:
Frederick D. Ezekiel - Lexington MA
International Classification:
H01C 102
US Classification:
338231
Abstract:
An external magnetic field retains a layer of magnetic liquid as a protective covering over an element, such as in slide wire potentiometers and in pressure measuring diaphragms.

Dual Output Force Motor

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US Patent:
42271002, Oct 7, 1980
Filed:
Feb 26, 1979
Appl. No.:
6/015280
Inventors:
Frederick D. Ezekiel - Lexington MA
Alf L. Carroll - Cohasset MA
Assignee:
The Foxboro Company - Foxboro MA
International Classification:
H02K 3300
US Classification:
310 13
Abstract:
An electric force motor includes two movable and independently actuatable coils energized by a single magnetic circuit. Air gaps are formed at respective ends of a tubular permanent magnet between a core of magnetically permeable material mounted within the magnet and pole pieces attached to opposite ends of the magnet. Such a configuration thus establishes a serial magnetic circuit connecting the magnet and the core through each of the air gaps. The two coils, each positioned within the respective air gaps, receive independent electrical input signals to develop corresponding output forces. Interactions between each coil that would tend to affect accuracy are minimized by choosing a magnet of high coercivity and by limiting the amount of input current applied to each coil.

Magnetic Disc Liquid Supporting

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US Patent:
45263817, Jul 2, 1985
Filed:
Jan 31, 1984
Appl. No.:
6/575514
Inventors:
Frederick D. Ezekiel - Lexington MA
International Classification:
F16J 1540
US Classification:
277 80
Abstract:
A pair of disc permanent magnets axially magnetized are fastened together in backing magnetic relationship with adjacent end faces of the same magnetic polarity and fastened to a housing. A ring of magnetic fluid around the inside edges of the permanent magnet discs engage a rotatable shaft and coact with the disc to seal the region between the shaft and housing. A bearing comprises a number of cascaded thin discs surrounding a nonmagnetic shaft. Nonmagnetic discs of thickness less than that of each magnetic disc may separate adjacent magnetic discs. Pole pieces of thickness less than that of each magnetic disc may separate adjacent magnetic discs and terminate in opposed pole faces adjacent the shaft defining a gap therebetween of gap width less than the thickness of each permanent magnet disc.

Method And Apparatus For Overrange Protection Of The Transducer In A Differential Pressure Transmitter

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US Patent:
41354079, Jan 23, 1979
Filed:
Apr 3, 1978
Appl. No.:
5/892811
Inventors:
Frederick D. Ezekiel - Lexington MA
Assignee:
The Foxboro Company - Foxboro MA
International Classification:
G01L 900
US Classification:
73717
Abstract:
A method and apparatus for protecting the transducer in a liquid-filled differential pressure transmitter having stroke limited, isolation diaphragms from exposure to overrange pressure are disclosed. Bidirectional overrange pressure protection is provided through the use of a single, preloaded bellows that is restrained by a preloaded stop means preferably including a preloaded mechanical spring. The bellows remains stationary when the differential pressure transmitter is exposed to a normal, operational differential pressure. When an overrange pressure is applied to the transmitter, the bellows expands or contracts to accommodate the liquid displaced by either of the isolation diaphragms thereby protecting the transducer from the overrange pressure. Upon removal of the overrange pressure condition, the protection apparatus automatically resets itself.

Web Handling Method And Apparatus With Pre-Acceleration Of Web Feed Rolls

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US Patent:
51902346, Mar 2, 1993
Filed:
Jan 27, 1992
Appl. No.:
7/826124
Inventors:
Frederick D. Ezekiel - Lexington MA
Assignee:
Butler Automatic, Inc. - Canton MA
International Classification:
B65H 1914
US Classification:
242 581
Abstract:
In a web handling apparatus for continuously supplying a running web to a web-consuming machine using a main accumulator to provide uninterrupted feed of the web during splicing of the trailing end of an expiring roll to the leading end of a ready roll, an improved ready-roll acceleration technique uses a supplemental accumulator disposed between the ready roll and the splicing head to enable the ready roll to be accelerated prior to completion of the splice. This technique permits the use of a smaller main accumulator and/or increased running speeds. In fact, the total storage capacity of the main and supplemental accumulators can be less than that of the single accumulator of conventional apparatus of this type. Furthermore, the running roll can be slowed without adverse consequence so as to reduce web tension upsets. The invention is also useful in web winder/splicer applications.

Automatic Air Deflation Regulator For Use In An Instrument For Measuring Blood Pressure

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US Patent:
41980310, Apr 15, 1980
Filed:
Apr 17, 1978
Appl. No.:
5/896968
Inventors:
Frederick D. Ezekiel - Lexington MA
Sol Aisenberg - Natick MA
Assignee:
Gulf & Western Industries, Inc. - New York NY
International Classification:
F16K 2400
US Classification:
251117
Abstract:
An automatic air deflation valve is provided for use with a sphygmomanometer type blood pressure measuring instrument. The valve comprises a housing having an air flow channel extending through the longitudinal extent thereof and at least one air deflation port extending outwardly from said channel. The port includes a deformable diaphragm supported only on its outer edges and having a central aperture extending through the thickness thereof. The diaphragm is adapted to deform in accordance with the air pressure applied against it from said channel to automatically adjust the size and shape of said aperture, thus producing a constant air deflation rate therethrough.
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Frederick D Ezekiel from Lexington, MA, age ~95 Get Report