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Attorney: Lettvin; Norman


Number of patents: 96
Last date: July 31, 1990

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NumberTitleIssue Date
4944050Combined shower splash guard and shower curtain holder
A combined shower splash guard member with a shower curtain holder is provided by a molded, generally triangularly-shaped, and modified, one piece body having two straight legs that intersect at a vertex of the triangle, and a third, web-like leg that ext...
07/31/1990
4816419Fluorescence ligand binding assay using charge-matched dye and solvent components
Fluorescence ligand binding assay of a sample containing an unknown amount of ligand is performed by making direct intensity measurements. In an immunoassay the sample is in a solution containing dye labeled analyte and an antibody specific to the analyte...
03/28/1989
4793266Cake decorating stand
A stand for aiding a worker, such as a cake decorator, to have selective access from a single work position to all surfaces of the product being worked upon, where the product has multiple tiers of different heights and widths, is provided by a movable pr...
12/27/1988
4732755Skin burn treatment
A new method for treatment of skin burn is disclosed. A known material, sodium polyacrylate, has been discovered to be useful in the treatment of burns. The method of treatment includes spreading sodium polyacrylate powder as a dressing over the skin burn...
03/22/1988
4703703Variable width, tiered display stand
A variable width tiered display stand, which may be supplied in knocked-down condition, and which may be readily assembled at the site of use, is disclosed. The stand provides multiple tiers, each adapted for support of a box of boxed goods thereon, to pr...
11/03/1987
4702638Inexpensive, knock-down furniture assembled with mating, molded, plastic shells for corners and elbows
Inexpensive, knock-down, furniture constructions, assembled with mating, molded, plastic shells for corners and elbows are disclosed for use in furniture pieces for use by children. The furniture constructions include panel members of inexpensive sheet ma...
10/27/1987
4700631Ink fountain and ink fountain support for printing press
An ink fountain for supplying ink to the ink carrying surface of a printing press form roll has an ink receptacle which may be removed from and reinstalled into the press separate from the adjustable support assembly which maintains it in an operative pos...
10/20/1987
4694962Standard dimension pallet assembly formed of separate abutted segments
Aliquot segments of a product transport pallet are maintained assembled to form a pallet assembly of a standard size by rigid members and metallic bands, by mutual interengagement of abutting portions of the segments or by rigid members and clips to enabl...
09/22/1987
4662593Concealed mounting for wall mounted supports formed of plastic
An improved fixture mounting is provided for a cantilevered fixture having a relatively broad base, or rear portion, adapted to be affixed to a support wall or other support surface. The mounting base portion of the fixture is provided with a cavity that ...
05/05/1987
4657186Stream former
A new and improved stream former is provided for attachment to the discharge end of a faucet or the like. The stream issuing from the stream former provides a formed, coherent, non-splash, silent, gentle flow. The stream former includes a sleeve-like casi...
04/14/1987
4643272Marine muffler for water-cooled internal combustion engines
An exhaust gas silencing assembly or unit of the wet-type receives the exhaust gases from a water cooled internal combustion engine used to power a water-going vehicle, such as a speed boat, and the coolant water from the water jacket of the engine. The e...
02/17/1987
4640898Homogeneous fluorescence ligang binding assay based upon preferential alteration of the respective intensities of bound and free label by solvent components
Fluorescence ligand binding assay of a sample containing an unknown amount of ligand may be performed by making direct intensity measurements. In an immunoassay, for example, the sample may be added to a solution containing fluorescein labeled analyte and...
02/03/1987
4632142Ballcock assembly
A ballcock is constructed with upper and lower housing members which are joined by a bayonet-type fitting. The juncture of the upper and lower members defines a valve chamber which sits atop the orifice of a vertical inflow tube carrying water from below ...
12/30/1986
4624022Device for holding a sheet or cover in position on the surface of a water bed mattress
A device for holding the corner of a sheet and/or cover in place on the surface of a water bed mattress is provided by a corner structure insertable under each corner of the mattress, to be supported and confined by the bottom support for the mattress and...
11/25/1986
4622850Marine pitot tube
A pressure operated speed indicating system for a vehicle operating in a fluid, such as a speed boat, has a mounting bracket which enables a pressure sensing or pitot tube having a pressure sensing opening to be placed in an optimum position with respect ...
11/18/1986
4622822Peltier thermoelectric element mounting
In heating and cooling assemblages, that use a thermoelectric module of the Peltier type held tightly between heating and cooling members, an improvement, for avoiding fracture of the frangible components of the Peltier type thermoelectric module, is prov...
11/18/1986
4604892Device for the automatic contactless measurement of the volume of a layer deposited on a substrate
An apparatus and process are disclosed for the contactless measurement of the volume of a layer of wet, electrically resistive material that is deposited on a rigid substrate support, where the deposit of said electrically resistive material has a known l...
08/12/1986
4593686Monitor for an anti-apnea device
A monitor system is provided for a device used in the treatment of sleep apnea. The device engages the user's tongue in a socket. The tongue is thereby held in a forward position, increasing the size of the air passageway, while at the same time flow of a...
06/10/1986
4569351Apparatus and method for stimulating micturition and certain muscles in paraplegic mammals
There is disclosed a new, useful and simple apparatus, and surgical method, for implantation of same, for selective control of evacuating the urinary bladder in mammals by electrical stimulation of the motor innervations of the bladder's detrusor urinae m...
02/11/1986
4562859Ballcock assembly
A ballcock is constructed with upper and lower housing members which are joined by a bayonet-type fitting. The juncture of the upper and lower members defines a valve chamber which sits atop the orifice of a vertical inflow tube carrying water from below ...
01/07/1986
4557125Apparatus for on line, random sample, inspection of cold-formed blanks for threaded fasteners
An improved apparatus for on-line inspection of an intermediate-stage, headed, non-threaded blank for a threaded fastener is disclosed. If the blank fails to meet specifications, the production of blanks is terminated. Improvement features include a roll-...
12/10/1985
4553346Display device
A poster display, subject to out-of-door wind forces that will develop substantial overturning forces against the poster display, is provided with a self-righting feature by using a hollow support base, with a convex support side, that is ballasted by a f...
11/19/1985
4552091Apparatus for metalizing metal bodies
An apparatus and method for metalizing the surface of metal bodies, such as bars, rods and tubes is providing using a substantially enclosed chamber in which the metalizing is caused to occur. An elongated body to be metalized is moved axially into the ch...
11/12/1985
4551354Method for metalizing metal bodies
An apparatus and method for metalizing the surface of metal bodies, such as bars, rods and tubes is provided using a substantially enclosed chamber in which the metalizing is caused to occur. An elongated body to be metalized is moved axially into the cha...
11/05/1985
4550838Modular display rack
An improved, knock-down, multiple-level, article storage and display rack may be assembled using article storage and shipping containers and dowel rod spacers. The containers, which preferably are molded plastic trays, each have a rectangular base and thr...
11/05/1985
4547135Motor-pump unit
A motor-pump unit consists of a screw shaft pump and a slot-barrel motor located on the pressure side of the pump. The motor-pump unit is provided with a rigid, preferably one-piece, shaft by which the motor drives the pump. The motor is located on the pr...
10/15/1985
4540407Surgical gloves and surface treatment of surgical gloves for avoiding starch peritonitis and the like
An improved surgical glove, powdered to serve as a lubricant, is provided by using a polyol powder as the lubricant. The use of a polyol powder as the powdering agent for use on surgical gloves avoids the problem of starch peritonitis that has been report...
09/10/1985
4539555Fire and smoke protection device for use in buildings
An anti-security control for unlocking the normally locked door which separates the corridor side and the stairwell side of buildings, such as hotels. The anti-security control is preferably adapted for use with and draws power from any conventional-type ...
09/03/1985
4525167Body fluid suction device
A medical suction device is provided in which a constant force means is utilized to create substantially constant vacuum in a chamber of the suction device, as the device progressively fills with fluid being drawn thereinto from a catheter or the like. Th...
06/25/1985
4505395Magazine display tray
A unitary, molded, vending and article display tray, for flat articles such as magazines provides a substantially horizontal tray means for receiving, supporting, and holding, in a somewhat confined manner, but providing easy customer manual access to, a ...
03/19/1985
4490411Apparatus for and method of metalizing internal surfaces of metal bodies such as tubes and pipes
An apparatus and method for metalizing the interior of pipes or tubes is disclosed. The base metal pipe or tube to be internally metalized is moved axially while simultaneously being rotated at a relatively high rpm. A first pre-heat means, preferably an ...
12/25/1984
4474297Storage and dispenser rack
A new storage and dispenser rack is provided for quasi-cylindrical containers such as bottles, wherein the ends of the containers are of different dimension but with a belly portion of the container being substantially of the same size and shape as the la...
10/02/1984
4467927Molded tray for display stands
An improved molded tray for a display stand is shaped to provide a rectangular planar product-support member, whose support area is free of structural invasion by other parts of the tray. The planar product-support member is reinforced by an integral, tra...
08/28/1984
4453926Scarifier
An improved packaging and assembly is provided for a multiple-point sacrifying device for vaccinating or skin testing. In order to insure economic wage of immunological or allergenic liquid pre-assembled on the scarifying device, each cluster of multiple ...
06/12/1984
4452254Cardiac electrode and method for installing same
A novel cardiac lead assembly is described which includes an elongatable coil spring which serves to connect a screw-in electrode tip with a connector. A flange is affixed to the electrode tip and the lead is positioned inside a tubular lead insertion dev...
06/05/1984
4449741Waste plumbing installation and fittings therefor
A plumbing network section for multi-storied construction is disclosed which uses an integral waste stack segment and waste receiving manifold for receiving waste from plumbing fixtures, and with multiple vents in the waste receiving manifold arranged for...
05/22/1984
4445230Bag with integral closure tie
A bag construction with integral tie means is provided cut from an elongated flattened tube of bag material, such as a thin walled plastic sheath. The flattened tube of material is cut with a lazy-U cut that extends across the entire width thereof to prov...
04/24/1984
4444188Balloon catheter
The disclosed balloon catheter includes a proximal catheter segment, a distal catheter segment, and an inflatable balloon member secured to and disposed between the proximal and distal catheter segments. A tension member is secured to the distal catheter ...
04/24/1984
4439452Class of analgesics and/or anti-inflammatory agents consisting of inhibitors of breakdown of endogenous enkephalin and/or endorphin, and combinations of said analgesics with antipyretic, anti-inflammatory (aspirin-type) drugs
A new class of analgesics is provided by substances that inhibit breakdown of endogenous substance such as enkephalins and/or endorphins. The analgesic effect of an enkephalin breakdown inhibitor is greatly enhanced by being combined with an antipyretic, ...
03/27/1984
4435171Apparatus to be worn and method for removing fluid from a living subject
Manifolds are disclosed for introducing fluid into the human body and removing fluid therefrom. The fluid removing manifolds include a plurality of separately valved containers sealed to the manifold. Each container is filled in series via the manifold an...
03/06/1984
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