HARRY M HAYTAYAN
Engineering in Nashua, NH

4763562, Aug 16, 1988

Oct 20, 1986

6/920709

Harry M. Haytayan - Nashua NH

F15B 13042, F16K 146

91461

A poppet valve having novel seal means for use in a pneumatic fastener apparatus of the kind having a cylinder, a piston slidably mounted for reciprocal movement in the cylinder, a fastener-driving hammer attached to the cylinder, and means including the poppet valve for controlling the application of pressurized air to the piston so as to cause it to execute a work stroke. The seal means comprises an O-ring disposed in a circumferentially-extending groove formed in the outer surface of the poppet valve member and arranged to make a sealing engagement with an end edge surface of the cylinder. More than half of the cross-sectional area of the O-ring is disposed within the groove so that as the poppet valve is driven into closing relation with the cylinder, the O-ring seal is clamped between an annular circumferentially-extending surface of the poppet valve member and the annular end edge surface of the cylinder, thereby providing a secure seal along the full perimeter of the cylinder.

8074348, Dec 13, 2011

Aug 8, 2007

11/890832

Harry M. Haytayan - Nashua NH, US

B23Q 7/10, B23P 11/00

298112, 29432

An apparatus and method for fastening a wood panel to a high structural strength steel frame member using self-drilling, self-tapping screws. An electrically powered rotary driver with an attached screw driver bit is carried by a pneumatically-powered telescoping driver support/fastener-positioning unit that includes a fastener positioning plate, telescoping members attached to the fastener positioning plate, and a pair of foot plates for the operator to stand on whereby to hold the apparatus down during a screw-driving operation. The driver and the driver support/fastener-positioning unit are controlled by an electro/pneumatic system. The method implemented by that system comprises retracting the driver support/fastener positioning unit so as force the screw driver bit to engage in the positioning plate, operating the driver as the telescoping members are retracted so that the screw driver bit will cause the engaged fastener to drill in turn through the wood panel and the steel frame member and form a screw connection with the steel frame member, and then turning off the driver and re-extending the telescoping members so as disengage the screw driver bit from the driven fastener, ready for a new screw-driving operation.

2004000, Jan 15, 2004

Jul 15, 2002

10/195207

Harry Haytayan - Nashua NH, US

B23P011/00

029/525010

A method and apparatus for fastening a first relatively soft structural component such as a wood panel to a second relatively hard structural component such as a steel angle iron using fasteners each having a forward self-drilling portion, a rearward, self-tapping portion, and an outwardly projecting head. The fasteners are driven by a pneumatic rotary impact driver and the method comprises rotatively driving each fastener so as to cause its self-drilling portion to drill a first hole through the wood panel and thereafter rotatively. driving and impacting that fastener so as to cause its self-drilling portion to drill a second hole in the angle iron and its self-tapping portion to form a screw connection with the angle iron around the second hole.

2004009, May 27, 2004

Nov 21, 2002

10/301262

Harry Haytayan - Nashua NH, US

E04H012/00

052/040000

A standoff sleeve/fastener assembly and a powered driver are provided for anchoring a subfloor component of a hard wood floor system to a concrete slab. The sleeve has a peripheral flange and a countersink at a first end. The fastener is disposed in the sleeve and has an enlarged head that is adjacent to but spaced from the first end of the sleeve. The driver has a nozzle with a striker bore sized to receive the head of the fastener and a recess sized to accommodate the peripheral flange of the sleeve. The subfloor component is anchored by (1) positioning the sleeve/fastener assembly in a hole in that component with the bottom end of the sleeve contacting the concrete slab, (2) positioning the driver nozzle so that the fastener head and the flange of the sleeve reside in its striker bore and recess respectively, and (3) operating the driver whereby its striker impels the fastener to (a) pierce and penetrate the concrete slab and (b) lock the sleeve between the concrete slab and the head of the fastener.

5016802, May 21, 1991

Feb 2, 1990

7/476121

Harry M. Haytayan - Nashua NH

B25C 118

227 11

An explosive actuated extendable driving tool has a housing with a barrel at its front end for receiving a fastening element that is to be secured in a ceiling, wall or the like. A manually actuated reciprocatable positioner shaft is slidably received in a retainer that is mounted to the back end of the housing, the positioner shaft being biased towards the back end of the housing. A load chamber formed which is in an inner end of the barrel is configured to receive an explosive charge. A muzzle with a self-aligning spall guard and splash guard are mounted to the barrel, the splash guard being disposed about the spall guard. A noise suppression element is contained in a chamber formed between the spall guard and the splash guard. Discharge ports formed in the barrel and spall guard define exits for the discharge of combustion gases and carbon into the noise suppression element. An extendable handle is connected to the back end of the positioner shaft, the handle operating as an actuator for firing the charge and driving the fastening element from the driving tool.

RE34258, May 25, 1993

Apr 14, 1992

7/868200

Harry M. Haytayan - Nashua NH

F41A 985

42 89

A magazine for accommodating propellant charges in the form of a thin metal disk. The disk is of circular form and is provided with a plurality of spaced orifices located adjacent the periphery of the disk for retaining the propellant charges. A reinforcement is provided on the disk to prevent the creation of disruptive vibrations that might cause sympathetic firing of charges. The reinforcement is in the form of an undulation which in one form creates an annular groove on one side of the disk and a circular rib on the other side of the disk; and in another form comprises a series of radially extending ribs of like configuration.

5075997, Dec 31, 1991

Oct 29, 1990

7/604865

Harry M. Haytayan - Nashua NH

F41A 985

42 89

A magazine for accommodating propellant charges in the form of a thin metal disk. The disk is of circular form and is provided with a plurality of spaced orifices located adjacent the periphery of the disk for retaining the propellant charges. A reinforcement is provided on the disk to prevent the creation of disruptive vibrations that might cause sympathetic firing of charges. The reinforcement is in the form of an undulation which in one form creates an annular groove on one side of the disk and a circular rib on the other side of the disk; and in another form comprises a series of radially extending ribs of like configuration.

7607219, Oct 27, 2009

Dec 18, 2006

11/640558

Harry M. Haytayan - Nashua NH, US

B23P 19/00

29798, 2952501, 524031

Fastening system for anchoring wood floors to a base includes a fastener having a pointed distal end and a proximal head end, a sleeve for retaining structural members, the sleeve having a central bore therethrough, a countersink extending from a proximal end of the sleeve coaxially with the central bore, and an annular flange extending outwardly from the sleeve proximal end. The system further includes a driver for driving the fastener through the sleeve bore and into the base, the driver including a nozzle having a bore for receiving the fastener, the nozzle being adapted to enter the sleeve countersink. The driver further includes a hammer disposed in the nozzle and movable to engage the head of the fastener and to drive the fastener into locking engagement with the base, to fix the sleeve to the base, and thereby fix the structural members to the base.

2005004, Feb 24, 2005

Aug 22, 2003

10/646576

Harry Haytayan - Nashua NH, US

B25C001/04

227130000

A pneumatic fastening tool includes a piston reciprocally disposed in a cylinder, a hammer mounted on the piston for driving engagement with a fastener, and an improved poppet valve disposed at one end of the cylinder and operable to direct high pressure air to cause selected movement of the piston in the cylinder. The poppet valve includes a poppet valve casing having an inner surface, and a reciprocally movable poppet valve member having an end surface that confronts and repetitively engages the inner surface of the poppet valve casing. The poppet valve member end surface includes a portion thereof which is of a material more resilient than the inner surface of the poppet valve casing which it engages.

5366082, Nov 22, 1994

Jan 25, 1994

8/186792

Harry M. Haytayan - Nashua NH

B65D 8524

206343

An article of manufacture is provided which enables nails to be fed serial fashion to a nail-driving device. The article of manufacture comprises a nail-supporting strip in the form of interconnected sleeves, each sleeve having a plurality of radially-extending ribs that define a nail-receiving passageway, and an end wall that is formed integral with the ribs. The sleeves are connected to each other by narrow webs that permit the sleeves to be sheared off from one another. The strip is adapted to receive and support a plurality of nails, with each nail being received and supported by a separate sleeve. The resulting combination of strip and nails forms a nail clip that is adapted to be loaded into the nail-receiving magazine of a nail-driving device.