James Ennis - Inventor

Tamper-Evident Closure

Application

#4440306 Apr 3, 1984

Filed

Jan 12, 1983

Inventor

E. James Van Buskirk (Norwich, CT) · James Ennis (Preston, CT)

Appl. No.

6/457370

Assignee

Silver Industries (Norwich, CT)

International Classification

B65D 5502

U.S. Classification

215230

Abstract

A tamper evident closure including a threaded cap for a threaded container neck and an enclosing cap mounted on the threaded cap. The threaded cap is provided with indicia which is permanently visible through a transparent portion or aperture in the enclosing cap after the closure is removed from the container.

Syringe-Dispensed Brake Fluid For Filling And Purging Master Cylinder Circuit From Slave

Application

#4785629 Nov 22, 1988

Filed

Jun 4, 1987

Inventor

James F. Ennis (Preston, CT) · Joseph L. Caisse (Taftsville, CT)

Appl. No.

7/058154

Assignee

James F. Ennis (Preston, CT) · Joseph L. Caisse (Taftsville, CT)

International Classification

F15B 710, B60T 1130

U.S. Classification

60584

Abstract

This apparatus for removing air from a hydraulic system having a master cylinder, a wheel cylinder disposed at a lower level than the master cylinder, with a hydraulic line connecting the cylinders, and an adjustable bleed nipple at the brake cylinder. The method includes the steps of filling a syringe with fluid and injecting it into the wheel cylinder via the open bleed nipple and through the hydraulic line to the master cylinder where air bubbles rise in the fluid therein and are dispersed to ambient air.

Two Compartment Mixing Syringe

Application

#4693706 Sep 15, 1987

Filed

Aug 11, 1986

Inventor

James F. Ennis (Preston, CT)

Appl. No.

6/895237

Assignee

James F. Ennis (Preston, CT)

International Classification

A61M 500

U.S. Classification

604 87

Abstract

A mixing syringe having an inner cylindrical barrel open at one end, and closed at its other end by a thin, tough, membrane bonded thereto. The barrel may contain a first liquid. A plunger inserted in the barrel has a sliding, sealing head which applies pressure to the liquid to rupture the membrane when the plunger is advanced. The barrel is slidably inserted in an open end of an outer barrel in sealing relationship therewith, and has a tip on the other end of the outer barrel. The outer barrel contains a liquid or other material to mix with the first liquid when the membrane is ruptured. The mixture is discharged from the outer barrel via the tip when the inner barrel is advanced axially in the outer barrel.

Method And Apparatus For Performing Service Level Analysis Of Communications Network Performance Metrics

Application

#6058102 May 2, 2000

Filed

Nov 6, 1998

Inventor

R. Scott Drysdale (Frederick, MD) · James D. Ennis (Ijamsville, MD) · John E. Hasselkus (Germantown, MD) · Thomas R. Nisbet (Ellicot City, MD) · Robert C. Troutman (Gaithersburg, MD) · Kenneth J. Rehbehn (Garret Park, MD) · David E. Wheeler (Germantown, MD)

Appl. No.

9/187611

Assignee

Visual Networks Technologies, Inc. (Rockville, MD)

International Classification

H04J 314

U.S. Classification

370252

Abstract

A data transmission system includes probes connected between end user sites and a data switching network. Each probe is connected to the switching network via an access channel wherein transmission circuits establish paths between the sites through the access channel and switching network. The probes capture and retransmit data traveling between the sites over respective transmission circuits, and can thereby insert service level analysis (SLA) messages into the data traffic in order to actively communicate network performance information to other probes. For each transmission circuit, the probes periodically collect measurements related to one or more network performance metrics, including: round-trip delay (RTD), data delivery ratio (DDR) and network availability. During each SLA measurement cycle, a sequence of SLA messages is exchanged over each transmission circuit, which messages contain data used to determine RTD and DDR. Optionally, the SLA message contents and protocol are designed to allow the SLA messages to be encapsulated in a single, standard data unit of any conventional data transmission protocol, such as an ATM cell.

Short Mastitis Cannula

Application

#D387247 Jun 19, 1990

Filed

Jul 22, 1987

Inventor

James F. Ennis (Preston, CT) · Mark L. Anderson (Elmwood, WI)

Appl. No.

7/076601

Assignee

Genesis Industries Incorporated (Spring Valley, WI)

U.S. Classification

D24 51

Claim

The ornamental design for a short mastitis cannula, as shown and described.

Method And Apparatus For Non-Intrusive Measurement Of Round Trip Delay In Communications Networks

Application

#5521907 May 28, 1996

Filed

Apr 25, 1995

Inventor

James D. Ennis (Gaithersburg, MD) · John E. Hasselkus (Germantown, MD) · Thomas R. Nisbet (Ellicott City, MD) · Robert Troutman (Gaithersburg, MD)

Appl. No.

8/429217

Assignee

Visual Networks, Inc. (Rockville, MD)

International Classification

H04L 1226

U.S. Classification

370 17

Abstract

Measurement of round-trip delay or travel time in a communications network during in-service operation is accomplished by use of two probes, situated at respective points of interest along the communication network, and a processor. The probes receive identifiable data patterns normally transmitted over the communications network and generate a time stamp when each pattern arrives at or leaves the respective point. Each probe further generates a pattern identifier based on the data in the pattern and stores the identifier and time stamp as a pair in a buffer internal to each probe. Once the internal buffer contents exceed a predetermined amount of data, the processor receives the data from the buffers and matches pattern identifiers between the buffers to locate the departure and arrival time stamps of each pattern traveling between the probe points. Thereafter, the processor calculates an average of round-trip delay or travel times based on the departure and arrival time stamps of several patterns traveling in both directions between the probe points.

Syringe With Spray Nozzle Tip

Application

#4923448 May 8, 1990

Filed

Dec 6, 1988

Inventor

James F. Ennis (Preston, CT)

Appl. No.

7/280331

Assignee

Mark Anderson (Elmwood, WI)

International Classification

A61M 5325

U.S. Classification

604239

Abstract

A syringe for dispensing a liquid as an atomized spray has a cylindrical barrel, a plunger movable axially in the barrel, a tubular nozzle at one end of the barrel, and a short fixed stem in the nozzle. A cup shaped nozzle tip has internal first spaced lands to frictionally engage the stem and define axially extending passages therebetween. A centrally apertured end wall of the nozzle tip has circumferentially spaced second lands to serve as abutments for the end of the stem. Troughs in the end wall between the second lands define further passages with the end of the stem for turbulently passing the liquid out of the aperture as an atomized spray.

Adjustable Dosage Syringe

Application

#4275729 Jun 30, 1981

Filed

Oct 29, 1979

Inventor

Jules Silver (Norwich, CT) · James F. Ennis (Preston, CT)

Appl. No.

6/088936

Assignee

Jules Silver (Norwich, CT) · James F. Ennis (Preston, CT)

International Classification

A61M 500

U.S. Classification

128218C

Abstract

An adjustable dosage syringe is provided wherein the syringe plunger has sets of multiple closely spaced indentations along the length of the plunger, and a dosage selection ring disposed around the plunger. The inside circumference of the dosage selection ring has protuberances which are registerable with and receivable in one of the indentations of the sets of indentations so that when one protuberance is received in an indentation of the first set of indentations, the other protuberance is also received in an indentation in the second set of indentations. Channels are disposed along the length of the plunger for simultaneously and slidably receiving the protuberances so that the ring is longitudinally slidable along the length of the plunger. Thus, any desired dosage may be achieved by rotating the ring so that the protuberances are disposed in the channel, sliding the ring along the length of the plunger, to that point corresponding to the desired dosage, and rotating the ring so that the protuberances are received by the indentations. The plunger is then forced into the syringe until the ring is engaged by the barrel of the syringe and stops further movement of the plunger into the syringe.

Syringe For Administering Sequentially Multiple Doses Of A Medicament

Application

#5290258 Mar 1, 1994

Filed

Jul 27, 1992

Inventor

James F. Ennis (Preston, CT) · Mark Anderson (Hudson, WI)

Appl. No.

7/918705

Assignee

Genesis Industries, Inc. (Elmwood, WI)

International Classification

A61M 5178

U.S. Classification

604215

Abstract

This syringe for dispensing multiple doses of a liquid medicament one at a time has a cylindrical barrel for containing the medicament. At one end of the barrel is a single outlet opening. A plunger in the barrel discharges the medicament. A syringe cap rotatable mounted on the barrel has guide means restraining the cap against axial movement. Ratchet means on the cap and barrel permit only unidirectional rotation of the cap and sequentially retain the cap in equally spaced detent positions on the barrel. Nozzles on top of the cap have passages for ejecting the medicament. Each passage terminates in a hole in the top of the cap. Only one nozzle at a time communicates with the barrel vis the outlet opening in each detent position of the cap on the barrel.

Syringe For Dispensing A Viscous Liquid

Application

#D303493 Mar 21, 1989

Filed

Jun 30, 1986

Inventor

James F. Ennis (Preston, CT)

Appl. No.

6/880326

Assignee

Genesis Industries Incorporated (Spring Valley, WI)

U.S. Classification

D23231

Claim

The ornamental design for a syringe for dispensing a viscous liquid, as shown and described.

Two Compartment Mixing Syringe Seal

Application

#4464174 Aug 7, 1984

Filed

Sep 27, 1982

Inventor

James Ennis (Preston, CT)

Appl. No.

6/424432

Assignee

Silver Industries, Inc. (Norwich, CT)

International Classification

A61M 500

U.S. Classification

604 90

Abstract

In a seal for two compartment mixing syringe having an outer barrel with an inner barrel partially disposed therein, and a seal on the dispensing end of the inner barrel, and a plunger disposed in the inner barrel, the improvement is wherein the seal is a combination of an aperture in the dispensing end of the inner barrel and a plug disposed in the aperture. The plug has a cylindrical portion of resilient and compressible material adapted to be compressibly disposed in the aperture but displaceable from the aperture by fluid pressure exerted by movement of the plunger in the inner barrel. A reduced diameter portion of the plug provides a fluid pathway between the inner barrel and the outer barrel when the cylindrical portion is displaced from the aperture by such fluid pressure. An increased diameter portion prevents the plug from passing through the aperture and into the outer barrel.

Dripless Automatic Syringe For Dispensing Fluids

Application

#4923096 May 8, 1990

Filed

Jan 9, 1989

Inventor

James F. Ennis (Preston, CT)

Appl. No.

7/295149

Assignee

James F. Ennis (Preston, CT)

International Classification

B67D 542

U.S. Classification

222391

Abstract

This dripless automatic syringe for dispensing fluids has a barrel for containing the fluid, a nozzle for discharging the fluid, and a housing to which the barrel is attached. A piston rod in the housing carries a rigid sealed piston head in the barrel for pushing out the fluid. Behind the piston head a normally unflexed elastic disc in the housing. The disc flexes when the piston rod moves forwardly under a driving force. The disc unflexes to retract the piston rod and piston head slightly when the driving force stops to create a suction which draws fluid back into the nozzle and thereby prevents dripping. The disc has an integral nipple which frictionally grips the rod to hold it in place, when the driving force ceases. The nipple permits axial rearward movement of the piston rod by an externally applied force for filling the barrel with fluid.

Method And Apparatus For Measurement Of Peak Throughput In Packetized Data Networks

Application

#5867483 Feb 2, 1999

Filed

Nov 12, 1996

Inventor

James D. Ennis (Ijamsville, MD) · John E. Hasselkus (Germantown, MD) · Robert J. Norberg (Germantown, MD) · Robert Troutman (Gaithersburg, MD) · Matthew A. Tucker (Myersville, MD)

Appl. No.

8/746416

Assignee

Visual Networks, Inc. (Rockville, MD)

International Classification

H04J 314, H04L 1226

U.S. Classification

370252

Abstract

A system for measuring peak throughput in packetized data networks includes a remote monitoring probe and console. The probe is connected to a packetized data network to monitor network activity, while the console is in communication with the probe via a communications medium. The probe maintains a plurality of counters associated with different ranges of utilization percentage for access channel and individual circuit bandwidth. For each sampling interval, the probe measures the access channel and individual circuit bandwidth utilization and increments the appropriate counters associated with the percentage ranges encompassing the measured bandwidth utilizations. The console polls the probe for the percentage counter data to selectively display the access channel or individual circuit bandwidth utilization in the form of a bar graph and pie chart. The access channel and/or individual circuit bandwidth may ultimately be adjusted based on the displayed data. Alternatively, the system may analyze the data and determine conservative, moderate and aggressive recommendations for bandwidth adjustment.

Dripless Dispenser For Liquids And Viscous Fluids

Application

#4678107 Jul 7, 1987

Filed

Aug 2, 1985

Inventor

James F. Ennis (Preston, CT)

Appl. No.

6/762305

Assignee

James F. Ennis (Preston, CT)

International Classification

B67D 500

U.S. Classification

2223865

Abstract

A dispenser for liquids and viscous fluids has a syringe-like device with a barrel for containing fluid and a nozzle at one end. The plunger is movable axially in the barrel for discharging the fluid. At the inner end of the plunger is a flexible, elastic cap which has an end wall that is normally concave, but which is flattened out under pressure when the fluid is discharged. When pressure on the cap is removed, the cap reassumes its concave shape thereby creating a suction in the barrel which draws fluid back into the nozzle to prevent dripping.

Cannula Assembly For Syringe

Application

#4981472 Jan 1, 1991

Filed

Nov 20, 1989

Inventor

James F. Ennis (Preston, CT) · Mark Anderson (Elmwood, WI)

Appl. No.

7/439180

Assignee

James F. Ennis (Preston, CT) · Mark Anderson (Elmwood, WI)

International Classification

A61M 500

U.S. Classification

604117

Abstract

This cannula assembly for injecting medicinal fluid into an animal's teat has a first tapered cannula formed with a circumferential bead at its wider end. A flexible jacket encloses the cannula and has another bead detachably engaging the bead on the cannula. A tapered second cannula extends forwardly from the jacket. This cannula is shorter than the first cannula. A flexible cap has an internal bead which detachably engages a corresponding bead at the sider end of the second cannula. This assembly provides the user with a choice of cannulas of two different sizes in treating a teat. In another form of the invention, a second flexible jacket has a bead which detachably engages a bead on the second cannula. A third cannula extends forwardly from the second jacket. The flexible cap detachably engages a bead on the third cannula, so that the user has a choice of cannulas of three different lengths in treating a teat.

Syringe Latch

Application

#5344409 Sep 6, 1994

Filed

Jun 14, 1993

Inventor

James F. Ennis (Preston, CT) · Sylvan L. Johnson (Woodville, WI)

Appl. No.

8/075890

Assignee

Genesis Industries Inc. (Elmwood, WI)

International Classification

A61M 500

U.S. Classification

604210

Abstract

A syringe for controlling the amount of material or medical fluid in a syringe body which is expelled therefrom upon depression of a plunger in the syringe body. The syringe includes a syringe body having a chamber and a discharge end portion and an open opposite end portion, with a plunger received in the syringe body. A measuring ring having an inner thread in mesh with an outer thread on the plunger, with latch means for setting and holding the measuring ring and plunger and thus, permit an exact volume to be expelled from said chamber.

Nonrotating Hermetically Sealed Closure For Bottle Containing Liquid

Application

#5165560 Nov 24, 1992

Filed

Mar 26, 1992

Inventor

James F. Ennis (Preston, CT) · Mark Anderson (Hudson, WI)

Appl. No.

7/858347

Assignee

Genesis Industries, Inc. (Elmwood, WI)

International Classification

B65D 3900, B65D 4314, B65D 5120

U.S. Classification

215247

Abstract

A hermetically sealed, nonrotatable closure for a bottle having a cylindrical body containing liquid and having an integral tubular neck formed with a free open end, comprises an annular flange on the tubular neck. A flexible stopper mounts on the flange. A cup shaped cap has a flat top wall with peripherally integral pliable skirt in which is an internal beveled ridge. The ridge engages the flange to lock the cap on the neck of the bottle. The top wall of the cap has a central hole to expose the stopper which can be pierced by a hypodermic needle to extract the liquid from the bottle while the cap remains unbroken on the neck of the bottle. Inside the skirt of the cap are circumferentially spaced teeth which engage in circumferential slots in the annular flange to cooperate with the ridge in preventing axial movement on the cap and stopper on the bottle. Radial webs separate the slots in the annular flange and engage in stalls defined by flat radial walls of the spaced teeth to prevent the cap and stopper from rotating on the tubular neck of the bottle.

Dispenser For Viscous Fluids

Application

#4852772 Aug 1, 1989

Filed

Dec 7, 1987

Inventor

James F. Ennis (Preston, CT)

Appl. No.

7/129447

Assignee

Genesis Industries, Incorporated (Spring Valley, WI)

International Classification

B67D 542

U.S. Classification

222386

Abstract

This dispenser for a viscous fluid comprises a cylindrical barrel having a nozzle at one end thereof for passing a fluid to fill the barrel and to discharge the fluid from the barrel. A flexible cylindrical piston head fits frictionally in the barrel to seal the fluid therein. The piston head is moved axially to discharge the fluid from the barrel. A multiplicity of short passages are defined by ridges or formed by narrow grooves on or in the inside wall of the barrel near the nozzle. The passages are only slightly longer than the axial length of the piston head to pass air entrapped between the piston head and fluid, axially of the barrel passed the piston head. The fluid fills the barrel and abuts the piston head, so that no air bubbles are discharged with the fluid from the nozzle. The hardness of the piston head is such that the sides of the head do not enter the passages which remain unobstructed. When the piston head is moved beyond the passages, the barrel is sealed by the flexible piston head and the fluid cannot leak passed the head even when heavy pressure is applied to the piston head to discharge the fluid from the barrel.