JOHN E PITTMAN
Broker in Ashland, MA
License number
Massachusetts 68456
Issued Date
Aug 1, 1985
Expiration Date
Jul 26, 2018
Type
Salesperson
Address
Address
Ashland, MA 01721
Professional information
Dual Flow Rotating Union
US Patent:
2003023, Dec 25, 2003
Filed:
Jun 20, 2002
Appl. No.:
10/175761
Inventors:
John Pittman - Ashland MA, US
International Classification:
F16L027/00
US Classification:
285/121100, 285/121300, 285/121600
Abstract:
A dual flow rotating union with a longitudinal axis, including a conduit having opposing ports oriented parallel to the longitudinal axis, the conduit having a rotating section and a stationary section. One conduit port is located on the rotating section, the other conduit port is located on the stationary section. A housing is disposed about the conduit, the housing also having opposing ports oriented parallel to the longitudinal axis. The housing includes a stator portion and a rotor portion rotatably disposed with respect to the stator portion. One housing port is located on the stator portion and the other housing port is located on the rotor portion.
Antenna Assembly Including A Dual Flow Rotating Union
US Patent:
2006001, Jan 26, 2006
Filed:
Sep 24, 2004
Appl. No.:
10/949173
Inventors:
John Pittman - Ashland MA, US
International Classification:
H01Q 3/02
US Classification:
343882000
Abstract:
An antenna assembly including a first rotating pedestal including an antenna thereon, a second pedestal supporting the first pedestal, and a dual flow rotating union having a longitudinal axis. The dual flow rotating union includes a rotating housing portion coupled to the first rotating pedestal, a stationary housing portion coupled to the second stationary pedestal, and a conduit located in the housing portion. The conduit has opposing ports oriented parallel to the longitudinal axis, a rotating section and a stationary section. One said conduit port is located on the rotating section, and the other conduit port is located on the stationary section. The housing also has opposing ports oriented parallel to the longitudinal axis. One housing port is located on the stationary portion, and the other said housing port is located on the rotating portion.
Locking Assembly
US Patent:
6292142, Sep 18, 2001
Filed:
Apr 17, 2000
Appl. No.:
9/550754
Inventors:
John E. Pittman - Ashland MA
Assignee:
Raytheon Company - Lexington MA
International Classification:
F16B 720
US Classification:
343700MS
Abstract:
A locking assembly is provided with a mounting ring having at least one notch and at least one groove having an entrance adjacent to the notch. A locking ring of the assembly has at least one protrusion disposed in the notch of the mounting ring. A retaining ring holds the locking ring and the mounting ring together. The locking ring is normally biased toward a first, locking position in which the protrusion blocks the entrance of the groove and is moveable to a second, engagement position in which the protrusion is urged against the mounting ring to expose the entrance of the groove. The locking assembly is suitable for engaging and locking various devices having at least one tab, such as an RF feed of an antenna system. The device is engaged and locked by moving the device tab against the locking ring protrusion, in order to move the locking ring to the engagement position and by rotating the device relative to the mounting ring to cause the device tab to enter the groove, following which the locking ring is biased toward the locking position.