Class 235/70A - Special use slide rule

Subclass of Class 235 - Registers
No. of patents: 58
Last issue date: 08/17/2010

Number	Title	Issue Date
7775421	Device for determining the sex (gender) of fish by measurement of morphological characteristics This measuring tool permits the measurement of all critical morphological characteristics of fish, including the new ones identified by the author in May 2005*, thereby allowing for the determination of gender (sex). The device incorporates three measurement scales ...	08/17/2010
7361021	Jet lag forecaster Alertness level is predicted on computers or sliding charts by relationship of sleep drives and wake drives, which are separately moved relative to destination time and time zone differential. Wake drives are moved with home time. Sleep drive is moved with bedtime a...	04/22/2008
7171776	Weapon sight having analog on-target indicators A device has structure that can support the device on a weapon, and a range portion that specifies a range to a target. A sensor portion provides sensor information representing an orientation of the device, and an electronic control portion is responsive to sensor ...	02/06/2007
7065886	Measurement and localization system using bases three and nine and corresponding applications A system for localizing a zone in space in relation to a predetermined point on a surface, wherein the surface is divided into nine zones of first rank obtained by dividing the surface into three parts in two different directions, a predetermined respective number f...	06/27/2006
7031811	Fuel efficient airspeed trim A system and method are provided for precisely adjusting individual aircraft airspeed system in order to provide more accurate cruise Indicated Airspeed (IAS). The system includes a flight data computer, an autopilot, and airspeed displays. The flight data computer ...	04/18/2006
6973737	Brushfire rate of spread tool A tool is triangular in shape and made of a clear plexi-glass. The tool contains two types of rate of spread scales, historical and real time. The historical rate of spread scale is based upon previous large-scale brushfires, while the real time scale utilizes GPS t...	12/13/2005
6915950	Device and method for chronic wound condition treatment A device and method for chronic wound treatment is disclosed. The device is in the form of a slide rule which instructs the user regarding a recommended course of treatment based on the healing phase condition and moisture condition of the wound. ...	07/12/2005
6283473	Method of operating progressive reel slot machines and device therefor A method of increasing gaming activity and entertainment value of progressive reel slot machines involving providing a progressive reel slot machine, publishing certain critical parameters, and providing a means or an equation to allow players to calculat...	09/04/2001
6196455	Range and drop calculator for use with telescopic gun sights A hand-held analog calculator apparatus, and method for use thereof in the field, in association with firearms. The apparatus permits the user of a high-powered rifle equipped with a telescopic sight having a mildot reticle to quickly determine the range ...	03/06/2001
5821509	Artificial tooth mold selector A tooth mold is selected by operating a device consisting of a card having a first and second side and a plurality of strips disposed therebetween. Each side of the card and each side of the strip is provided with descriptive material for specific data. T...	10/13/1998
5753896	Acid-base equilibrium slide-rule A slide rule for ascertaining the state of acid-base equilibrium has three slides moveable within a frame, each with visible scales on one side for entering the respective three haemogasanalytical parameters, pH, PaCO2 and HCO3 Indic...	05/19/1998
5708260	Slide-rule calculator for computing a salary replacement value A retirement calculator for calculating a salary replacement value independent of current salary and a method of computing a total salary replacement value are disclosed. The retirement calculator is made up of a sleeve having an open end and a plurality ...	01/13/1998
5535659	Transposition rule for musical theory A transposition rule for musical theory for the visual indication of the sequence of notes of musical scales and/or chords in the various keys of a tone system. The transposition rule includes an elongated base member which is provided with fixed scales, ...	07/16/1996
5517007	Three variable reference chart and calculator Disclosed is a manually operable calculator for determining a fourth value on the basis of three variables. According to one example, the calculator is used to determine the total storage available for a recording medium consisting of several units, such ...	05/14/1996
5401942	Device for calculating no decompression dive times A new device including a new arrangement of dive tables is disclosed for planning non-decompression dives. The invention utilizes two separate scales, movable relative to one another. The first scale shows the pressure group scale, the bottom time or resi...	03/28/1995
5310995	Stairway calculator A slide rule comprises, to calculate the parameters of a stairway to be installed between lower and upper floor surfaces, (a) a first scale on a stationary body denoting the number of risers, (b) a second scale on a first slide denoting the elevation of t...	05/10/1994
5148006	Mechanical device for determining the modulus and loss factor of a damping material based upon temperature and frequency A device for providing the modulus and loss factor values of a damping material based upon temperature and frequency which includes (i) an insert having (a) temperature isotherms on one side, and (b) graphs of the modulus and loss factor values for the da...	09/15/1992
5084609	Trigonometric slide rule The invention relates to an improved slide rule type of apparatus that provides visual solutions to trigonometric problems. The invention provides a cheaper to make and easier to read trigonometric slide rule....	01/28/1992
5057675	Patch cord length calculator A hand operated calculator is provided for estimating a length of a patch cord necessary to extend between any two of a plurality of connection locations of spaced apart frames in a distribution bay. The calculator includes three members which are movable...	10/15/1991
4798940	Manual calculator for analog and digital numbers A manual calculator useful in registering and converting whole and fractional numbers from one numbering system to another numbering system in which a plurality of slide members are arranged in an array within a cover, with each said slide member being mo...	01/17/1989
4785164	Slide calculator for background lighting There is disclosed herein a slide calculator for determination of flash-to-background distance for studio photography when using color filters over the flash. By use of the calculator, known factors, such as lens f-stop, film speed, flash guide number (GN...	11/15/1988
4782448	Contract estimating system utilizing a digitizing ruler A contract estimating system includes a digitizer ruler divided into a plurality of equally spaced increments. The ruler generates an output signal representing the distance along the ruler at a point touched by a hand held probe. A digitizer board carrie...	11/01/1988
4775779	Slide rule for selecting material for constructing bearing A slide rule for selecting bearing materials has a base plate, a fixed cursor having first, second and third portions spaced apart from one another and fixedly attached to the base plate, a first sliding ruler slidably mounted between the first and second...	10/04/1988
4772780	Slide calculator for photographic lighting The object of the invention is to provide a slide calculator to make the determination of flash-to-subject working distances (WD) easy and accurate for amateur and professional photographers. Light sources other than flash can be used. The calculator uses...	09/20/1988
4744034	Contract estimating system utilizing a bar code ruler A bar code ruler is divided into a plurality of equally spaced increments each of which is marked by a machine readable bar code number. The ruler includes a plurality of recesses along the length thereof which cooperate with a spring biased ball carried ...	05/10/1988
4678893	Method and means for determining the ease with which a cow may give birth to a calf The present invention comprises a method and device for determining the ease with which a cow may give birth to a calf. It includes a slide rule having two movable slides and a fixed slide. The fixed slide includes a predicted calving score scale at one e...	07/07/1987
4585927	Apparatus for predicting the exact time of currents in terms of the year, month, day and hour Apparatus for presenting tidetable data in a form visually readable to the average person in terms of the year, month, day and hour of occurrence, exacting information regarding current flow, i.e. the direction of current flow, the relative strength of cu...	04/29/1986
4516013	Decoying calculator This invention is a calculator that is particularly adapted to assist the user thereof in determining the location of waterfowl decoys relative to a duck blind. The calculator can be adjusted as wind direction dictates to give varying patterns under varyi...	05/07/1985
4425499	Decision tree graphical computer A graphical logic computer is formed by apertured parameter slides that are moved back and forth in an envelope between an apertured cover member and a back panel. The cover member has an event network with paths that branch from and connect event windows...	01/10/1984
4361752	Calculator and apparatus for macrophotography An apparatus for macrophotograph comprising a camera, an electronic flash unit having a variable power output, a bracket for connecting the electronic flash unit to the camera in such manner that an angle formed between an axis passing through a lens of t...	11/30/1982
4350877	Calculating rule useful for making eyeglasses A calculating rule for obtaining ophthalmic values which are necessary for making eyeglasses, such as near-point distance, far-point distance, visual range, and addition, especially by which the eyeglasses-wearer can continue his work at the objective wor...	09/21/1982
4346288	Fuel saving aircraft descent calculator A manually operable calculator for optimizing aircraft fuel consumption during descent from an actual altitude to a target altitude/distance. Altitude and distance scales are provided which are alignable to determine an uncorrected fuel efficient distance...	08/24/1982
4337391	Measuring device A device is provided for measuring a subject's reaction to stimuli, i.e., to measure a subject's indication of attitude, opinion, judgement, preference, evaluation, feeling, intention, etc. when presented with a question, problem, fact, situation or other...	06/29/1982
4329570	Lead calculator A calculating device and a method of use thereof for determining the lead required to shoot a projectile at a moving target including cooperating logarithmic scales with indicia corresponding to the parameters target speed, range, projectile speed and lea...	05/11/1982
4324975	Tax calculator A hand-held calculating device for calculating Federal Income Taxes or the like includes substantially flat, elongate front and rear cover members and an insert card. Suitable structure is provided for joining the cover members with the card slidably inse...	04/13/1982
4323234	Jump reach physical training system A jump and reach physical training system is disclosed for measuring vertical height attained by a person jumping vertically from a standing position. A board is included, having visually perceptible full size scale with equally spaced increments thereon....	04/06/1982
4323766	Diagram analyzing device with table of events for combined interpretation of plural curves A diagram analyzing device is provided which is particularly useful in simultaneous interpretation of a plurality curves representing economic data. The curves are drawn to a common scale and provided on transparent sheets so that they can be superimposed...	04/06/1982
4310750	Tactical nuclear slide rule for a plurality of environments A calculational aid is provided, in the form of a slide rule, to facilitate alculation of probable damage inflicted by a nuclear detonation. The particular apparatus permits calculation of any one or more of several damage-causing environments induced by n...	01/12/1982
4308450	Two-piece slide calculator for determining metabolic requirements and parenteral feeding dosages There is disclosed herein a slide calculator for determination of factors related to metabolic requirements and used in determining parenteral feeding dosages. By use of the calculator, factors, such as basal energy expenditure, body surface area, ideal b...	12/29/1981
4308449	Tactical nuclear slide rule A calculational aid is provided, in the form of a slide rule, to facilitate calculation of damages inflicted by a nuclear detonation. The particular apparatus permits calculation of the effects of an air blast, due to static overpressure, resulting from s...	12/29/1981

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Class 235/70A - Special use slide rule