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| Number | Title | Issue Date |
| 7707771 | Plant cultivation apparatus A plant cultivation apparatus includes a water resistant sheet of material, with at least one opening formed in the sheet to enable growth of a plant through the opening. A fertilizer band, which can be contained within a membrane, is affixed to an underside of the ... | 05/04/2010 |
| 6364297 | Torsion bar anchor An improved torsion bar and socket system for a motor vehicle is provided. The socket includes a main hexagonal shaped opening having a plurality of scalloped openings extending therefrom. The socket includes a contact wall that defines a portion of the m... | 04/02/2002 |
| 4825789 | Low bobbin thread detector An optical low bobbin thread detector is disclosed utilizing particularly cost effective matrixed light emitting diodes for bobbin thread detection and alarm, and virtually eliminating false alarms by employing a system requiring detection of a predetermi... | 05/02/1989 |
| 4815406 | Compound stitch pattern for a sewing machine An electronic sewing machine storing information concerning a string of different stitch patterns includes a central processor responsive to an operator entered parameter for effecting unique modification of certain stored stitch patterns thus creating a ... | 03/28/1989 |
| 4776292 | Demand responsive sewing machine take-up and threading arrangement therefor A demand responsive sewing machine thread take-up construction is disclosed accommodating a shortened thread introduction path which facilitates operator interface and reduces construction costs while providing for improved reliability and uniformity of t... | 10/11/1988 |
| 4763589 | Solar powered indicating device for sewing machines A solar cell powered detecting and indicating system applicable to mechanically controlled sewing machines without D.C. power supplies connected to regular A.C. house mains, and detecting and indicating circuits minimizing power consumption for compatabil... | 08/16/1988 |
| 4735162 | Device for indicating by illumination the selected stitch pattern on a sewing machine A flexible light pipe fixed at one extremity to admit light from the lamp illuminating the stitch forming area is shiftably supported at the other extremity to illuminate representation of the selected stitch pattern, and an expandable coil in the light p... | 04/05/1988 |
| 4734012 | Blower speed control A speed controlling circuit for an alternating current powered blower motor is disclosed in which rectified direct current voltages are manipulated, regulated responsive to ambient temperature, and compared so as to provide reliable and cost effective blo... | 03/29/1988 |
| 4733622 | Thread end holder for sewing machine with thread winding bobbin A needle thread end holder for a sewing machine having bobbin thread replenishing mechanism in which an annular groove formed in the presser securing screw accomodates a stretched rubber "O" ring so as to apply only a limited frictional resistance to a th... | 03/29/1988 |
| 4730567 | Composite feed dog for a sewing machine A composite feed dog for a sewing machine comprises a zinc die cast body portion having a toothed surface region covered by a layer of elastomeric material.... | 03/15/1988 |
| 4714037 | Needle looper assembly for non-threaded needle lockstitching A needle looper assembly for a lockstitch sewing machine wherein the upper thread is retrieved by a sewing needle extending through a work material, which sewing needle has an extensible hook portion for catching an upper thread and drawing the same down ... | 12/22/1987 |
| 4712496 | Machine stitched buttonhole and method of producing same A method of producing a buttonhole is disclosed in which individual legs thereof are composed of stitches alternately extending parallel to the length of the buttonhole and substantially transversely of said length. The stitches extending parallel to said... | 12/15/1987 |
| 4694763 | Sewing machine bed slide retention A bed slide for a sewing machine having a frame fabricated of a synthetic resin material, the bed slide extending beyond the throat plate on both sides thereof, and thereby beyond the cavity accommodating the looptaker, and two embodiments of devices atta... | 09/22/1987 |
| 4660485 | Rotating needle guard A needle guard for an industrial zigzag sewing machine designed to provide support for the sewing needle in all lateral positions of the needle. The needle guard provides a lead in surface to return an already deflected needle to a supporting surface whic... | 04/28/1987 |
| 4658743 | Control mechanism for sewing machine stitch forming mechanism A sewing machine having feed control linkage spring biased in one direction and manual selector cams effecting feed control linkage settings in buttonhole stitch formation, one selector cam including a projection effecting abnormal control linkage positio... | 04/21/1987 |
| 4651662 | Sewing machine frame cover and fastening therefor A sewing machine frame and cover construction and fastening means for securing a warped cover in place over a frame opening without imparting frame distorting stresses. To obviate imparting stresses to the sewing machine frame as result of clamping a warp... | 03/24/1987 |
| 4645174 | Mounting arrangement for a critical flow device An axial flow valve has its cage bolt replaced by a sonic nozzle. This device may then be permanently installed in a pipeline in series with a meter to provide the facility for on site calibration of the meter.... | 02/24/1987 |
| 4630557 | Adjustable low inertia presser bar A low inertia presser bar carries a retaining plate which slidably extends through an enlarged slot in a hollow main presser bar that slidably receives the main presser bar. The lowered position of the main presser bar may be adjusted to position the clea... | 12/23/1986 |
| 4621788 | Solenoid valve A solenoid valve of the type having a molded one-piece plastic valve body including a housing for a flow rate control member, a guide tube for the solenoid armature and a valve seat. A molded plastic insert is provided which functions to retain the flow r... | 11/11/1986 |
| 4617432 | Adjustable pressure responsive switch assembly An adjustable pressure responsive switch assembly includes a unitary slide cam and button with projections extending outwardly from the slide cam. The support bracket mounted on the pressure switch includes an elongated slot having an enlarged opening at ... | 10/14/1986 |
| 4612821 | Spring system for push-button control in a sewing machine A push-button control for a sewing machine is provided with a spring system which returns slidable push-buttons from actuated to unactuated positions, and includes individual wire springs supported within grooves in a fixed member and preloaded against ex... | 09/23/1986 |
| 4600923 | Remote meter display unit A remote meter display unit is connected to a meter index through a magnetically actuated single pole double throw switch cooperating with a magnet mounted on an index pointer shaft. The remote display unit is configured to increment a counter whenever th... | 07/15/1986 |
| 4599499 | Fast impulse timer drive mechanism A drive mechanism for a program timer of the type having a rotating member advanced in a step-by-step manner by a drive pawl includes a drive cam having a camming surface defining the drive stroke of the drive pawl. In order to shorten the switching time,... | 07/08/1986 |
| 4595171 | Inline solenoid operated valve An inline solenoid operated fluid flow control valve includes a plunger housing and a plunger movable against a valve seat and pole piece within the flow line when the solenoid coil is energized. The plunger and plunger housing are axially coupled via a s... | 06/17/1986 |
| 4590790 | Method for determining the accuracy of a gas measurement instrument A meter in a high pressure gas pipeline is calibrating using a sonic nozzle in series with the meter. A bypass line is run where measurements are made to determine gas composition dependent factors for use in defining the flow through the nozzle.... | 05/27/1986 |
| 4587389 | Snap action timer switch assembly A switch assembly to provide snap action switching on a cam rise in a program timer includes a follower assembly on the free end of a first blade to engage the program member to reference the first blade relative to the program member. A cam follower for ... | 05/06/1986 |
| 4584868 | Apparatus for determining the supercompressibility factor of a flowing gas An arrangement for determining the supercompressibility factor of a flowing gas at elevated pressure includes a first meter for measuring the volume flow rate of the gas at the elevated pressure, a restrictor at the outlet of the first meter for dropping ... | 04/29/1986 |
| 4583419 | Torque transmitting handwheel clip-on member for a sewing machine A handwheel is assembled to a sewing machine arm shaft with a conical screw in association with a torque transmitting handwheel clip-on member having wings thereon which are disposed in line contact with the screw, and which include planar surfaces that a... | 04/22/1986 |
| 4581944 | Electronic flow transducer assembly A flow rate sensor including a diaphragm having a first side in fluid communication with a Venturi and a flow conduit. With flow through the conduit, the diaphragm travels downwardly, the extent of travel being determined by the flow rate. A permanent mag... | 04/15/1986 |
| 4583085 | Liquid level sensor assembly An oil level sensor assembly adapted for installation in an automobile engine crankcase at the level corresponding to "low oil". The sensor assembly utilizes the principle that air is expandable whereas oil is not. Accordingly, when it is desired to sense... | 04/15/1986 |
| 4581941 | Combined electronic pressure transducer and power switch A pressure switch and transducer arrangement combines into a single unit both a power contact switch for providing power to an automobile fuel pump in response to a predetermined minimum oil pressure and a magnet/Hall effect sensor for providing an analog... | 04/15/1986 |
| 4580460 | Bevel gear backlash adjusting mechanism A bevel gear backlash adjusting mechanism is disclosed in which a bevel gear is carried by a bearing and is rotatably carried by a stationary shaft so as to be axially shiftable therewith. The stationary shaft includes a supporting portion carried by the ... | 04/08/1986 |
| 4566884 | Vacuum cleaner bag support A vacuum cleaner bag support in which a compression spring is itself supported in the interior of the upper terminus of an outer bag and carries a bag top support which resiliently maintains the bag elevated against lateral expansion thereof. An ornamenta... | 01/28/1986 |
| 4559886 | Thread guide construction A sewing machine thread guide is provided with a flexible plastic thread entrapping core portion, and a hard core encasing portion having thread supporting grooves in alignment with thread receiving eyelets in the core portion.... | 12/24/1985 |
| 4560846 | Increased capacity program timer A program timer wherein a single three blade switch assembly is utilized for both the line switching function and a cam track operated switch.... | 12/24/1985 |
| 4553433 | Rotary meter with integral instrument housing A rotary meter with an integral instrument housing is arranged so that the rotating components of the meter rotate about vertical axes. The meter includes upper and lower housings which together form a pressure hull. A cover is provided to be connected to... | 11/19/1985 |
| 4553491 | Control mechanism in a sewing machine for pattern and buttonhole sewing A cam selecting drum which is loosely supported in punched out holes in the frame of a sewing machine is spring biased into stabilized indexed positions to prevent variable stitch formation, and an idler gear which is also loosely supported on said frame ... | 11/19/1985 |
| 4554509 | Frequency shift keyed demodulation system A demodulator for continuous phase frequency shift keyed signals is implemented through the medium of computer software and processes incoming signals which are initially passed through an interference reduction filter. The disclosed demodulation algorith... | 11/19/1985 |
| 4546357 | Furniture antenna system An antenna system for an article of furniture in which a panel of the article of furniture is sealed by a low loss dielectric material to isolate the panel from impurities which affect its electrical integrity. An antenna structure is applied thereon by s... | 10/08/1985 |
| 4545311 | Thread tensioning device for a sewing machine A thread tensioning device, wherein a helical spring of varying diameter is deflected by a control knob with a defined operating range to increase tension in sewing thread moved through the device, is provided with a member which is formed to engage one o... | 10/08/1985 |
