Frederick J Holmes

US Patent:

6373269, Apr 16, 2002

Filed:

Oct 12, 1999

Appl. No.:

09/415745

Inventors:

Frederick J. Holmes - Plainville MA 02762

International Classification:

G01R 3102

US Classification:

324760, 324537, 324754, 324758, 361748, 29280

Abstract:

An interface circuit board ( ) for high test point density electronic testing equipment has a first thickness signal portion ( ) in which all the signal traces ( ) are routed and a second, thicker integrally formed transfer portion ( ) which transfers the signal traces to a respective test pad ( ) on the lower surface of the transfer portion. The transfer portion is made thicker to strengthen the board and is made integral with the first signal portion to eliminate the need for intermediate solder joints.

US Patent:

6647198, Nov 11, 2003

Filed:

Jul 3, 2001

Appl. No.:

09/898617

Inventors:

Frederick J. Holmes - Plainville MA

Assignee:

Semco Machine Corporation - Wrentham MA

International Classification:

G02B 600

US Classification:

385134, 385 92

Abstract:

A fiber optic module housing ( ) has a plurality of module seats ( ) for receipt of fiber optic modules ( ) having a connector portion extending through a connector opening ( ) of a front wall of the housing. A pressure bar ( ) is integrally connected to the cover ( ) through hinges ( ) and is movable to depress a locking arm ( ) of the connectors. A hole ( ) is provided in the back wall of base ( ) in alignment with each module seat for a straight test configuration and posts ( ) are provided in a recess ( ) of the base for a loop test configuration. In one embodiment the connector openings are aligned in a straight line and in another they are aligned in a stepped configuration.

US Patent:

20130318850, Dec 5, 2013

Filed:

May 18, 2013

Appl. No.:

13/897389

Inventors:

Frederick J. HOLMES - Plainville MA, US
Mark E. JENKINSON - Wilbraham MA, US

International Classification:

F41C 27/00

US Classification:

42 90

Abstract:

A magazine mounting platform having at least one mounting fixture for insertion into the magazine compartment of a firearm thus securing the firearm in place. The magazine mounting fixture may include at least one dowel pin operable for insertion into receivers on the platform. Some embodiments may also include a rotational adapter which allows for a firearm mounted on the fixture to be rotated. Risers may be included to provide additional support for a firearm by securing in place a barrel or a stock. Some embodiments may include magazine mounts for M4 carbine type, AR rifle type or Model 1911 pistol type firearms.

US Patent:

60406992, Mar 21, 2000

Filed:

Jun 16, 1997

Appl. No.:

8/877032

Inventors:

Frederick J. Holmes - Plainville MA

Assignee:

Semco Machine Corporation - Wrentham MA

International Classification:

G01R 3122

US Classification:

324754

Abstract:

A mounting device (10) is shown particularly adapted for adjustably mounting vectorless test heads for circuit board components and the like to be tested for processing faults of component pin connections with traces of a circuit board in which the components are mounted. A U-shaped bracket (18) is lockably received on a rail (2) and has first and second projections (18d,18e) slidably received through a respective slot (16c,16d) of a leg (16) of a T-shaped member (12). The base leg (14) of the T-shaped member (12) is connected to one end of a pin member (24) which slides through a bore (18p) in one arm (18b) of U-shaped bracket (18) and is threadingly received in a threaded bore (18n) of the other arm (18a) of the U-shaped bracket (18). Rotational movement of the pin member (24) causes T-shaped member (12) to move in a Z direction to permit precise locating of a test head (30) mounted on the base leg (14). The mounting device (10) is also shown mounted on a resinous mounting plate (40) having a plurality of sets (40a) of mounting apertures.

US Patent:

55006060, Mar 19, 1996

Filed:

Sep 16, 1993

Appl. No.:

8/122246

Inventors:

Frederick J. Holmes - Houston TX

Assignee:

Compaq Computer Corporation - Houston TX

International Classification:

G01R 3102

US Classification:

324761

Abstract:

A test fixture including top and bottom probe plates including double-ended pogo pins interfacing top and bottom interface printed circuit board (IPCBs), further including double-ended transfer pins to achieve a true wireless dual access test fixture. The top transfer pins electrically engage the bottom transfer pins after vacuum is applied to allow electrical interface with the top-side fixture without the use of wires. The top fixture mounts in a frame assembly through a parallel linkage keeping the top fixture parallel with the PCB under test. Guide pins mounted on the bottom probe plate are used to align a top plate holding the PCB and also to pre-align with bushings on the top fixture before vacuum is applied. When vacuum is applied, the top plate and top fixture move in a single longitudinal direction to electrically engage the test pins and test pads, preventing lateral movement which heretofore caused significant damage to the test pins and test pads.

US Patent:

55504817, Aug 27, 1996

Filed:

Feb 8, 1995

Appl. No.:

8/385639

Inventors:

Frederick J. Holmes - Bellingham MA
Frederick F. Holmes - Franklin MA

Assignee:

Semco Machine Corporation - Wrentham MA

International Classification:

G01R 1512
G01R 3102
H01R 13629

US Classification:

324754

Abstract:

A test fixture (10) for mounting electrical circuit boards (CB, CB') and placing a plurality of test locations of the circuit board in electrical engagement with respective probe test pins (16) of an array of such pins has a cam mechanism (22) mounted in an integrally formed modular frame (20) of an upper assembly (12). The upper assembly (12) is pivotably mounted on a lower base assembly (14) and latched thereto by a latch assembly (28). A circuit board to be tested is placed over an array of longitudinally depressable pins (16), the upper assembly (28) pivoted to a closed position and latched by latch mechanism (28). Handle (22k) attached to the cam assembly (22) is then rotated causing blocks (22f) to slide in rectilinear track (22e) of slide plate (22c) while translating rotary motion of the cams members (22g) to a vertical motion of a pusher plate (30) attached to the slide plates (22c). The pusher plate (30), maintained in selected angular orientation by shafts (24), engages the circuit board (CB, CB') through pusher pins (30a) forcing downward movement of the circuit board against probe pins (16) depressing the probe pins (16) a selected distance.