JEROME J SCHAUFELD
Engineering in Framingham, MA
License number
Massachusetts 22283
Issued Date
Oct 25, 1968
Expiration Date
Jun 30, 2018
Type
Mechanical Engineer
Address
Address
Framingham, MA 01702
Professional information
Fume Hood Sash Sensing Apparatus
US Patent:
4893551, Jan 16, 1990
Filed:
May 19, 1988
Appl. No.:
7/196029
Inventors:
Gordon P. Sharp - Newton MA
Jerome J. Schaufeld - Framingham MA
Jerome J. Schaufeld - Framingham MA
Assignee:
Phoenix Controls Corporation - Newton MA
International Classification:
B08B 1502
US Classification:
981153
Abstract:
An apparatus for sensing the extent to which the opening of a fume hood is uncovered by the hood sashes, and is particularly adapted for use with hoods having sashes which are moved horizontally. Radiation from a radiation emitter, such as an optical or a magnetic emitter, are sensed by corresponding detectors. For some embodiments of the invention, there is relative movement between the emitters and detectors as the sashes are moved to cover or uncover the opening, the movement between the emitter and the detector being such that the amount of radiation detected by the detectors is proportional to the uncovered portion of the opening. The relative movement may be accomplished by, for example, having the detectors fixed and having the emitters mounted to the sashes or by having the detectors mounted to some sashes and the emitters mounted to other sashes. A unique magnetic emitter is also provided with enhanced flux throw. The enhanced flux throw is required with various embodiments of the invention where there may be substantial spacing between the magnetic emitter and detector.
Fluid Control Device With Reduced Sound Generation
US Patent:
2002016, Nov 7, 2002
Filed:
Jan 29, 2002
Appl. No.:
10/060074
Inventors:
Frederick Lorch - Ashland MA, US
Gordon Sharp - Newton MA, US
Jerome Schaufeld - Framingham MA, US
Richard Clayton - Newton MA, US
Gordon Sharp - Newton MA, US
Jerome Schaufeld - Framingham MA, US
Richard Clayton - Newton MA, US
International Classification:
F16K015/00
US Classification:
137/517000
Abstract:
A fluid control device with a reduced sound generation. The device is a nozzle-type valve that has a converging portion, a diverging portion and a throat therebetween. A diverging portion acts as a diffuser and may be conical or may have a slight curvature. In each, the diffusion angle is less than 20° so that turbulence of fluid flowing through the valve is minimized and a boundary layer is maintained between the fluid and an inside surface of the fluid control device. A control system that uses such a fluid control device is also disclosed and such device may be used either in a supply conduit or an exhaust conduit.
Mechanism For Operating Multiple Air Flow Control Valves
US Patent:
5251665, Oct 12, 1993
Filed:
Jul 20, 1992
Appl. No.:
7/916906
Inventors:
Jerome J. Schaufeld - Framingham MA
Assignee:
Phoenix Controls Corporation - Newton MA
International Classification:
F16K 1104
US Classification:
137554
Abstract:
A mechanism is provided for operating multiple air flow control valves from a single actuator. The mechanism includes a yoke mounted to move with the drive shaft of the actuator and having a leg facing in the direction of each valve. The leg is resolvably connected, preferably by a link pivotably connected at each end, to a lever connected at its other end to a control shaft for the valve.