Volumetric measuring device

Abstract

A volumetric measuring device for measuring a body part. The device includes a fluid container filled with fluid. The fluid container has a body part opening for permitting the insertion of a body part and a displaced fluid opening for permitting the flow of fluid that has been displaced as the result of inserting the body part. A fluid-tight barrier covers the body part opening and maintains a fluid-tight seal over the body part opening while the body part is being inserted. The volumetric measurement is determined by measuring the amount of displaced fluid after the insertion of the body part through the body part opening. In a preferred embodiment, the body part being measured is an erect penis.

Description

The present invention relates to volumetric measuring devices, and in particular, to measuring devices for measuring the size of a body part. The present invention is a continuation-in-part of U.S. patent application Ser. No. 10/995,663, filing date Nov. 22, 2004, soon to issue on Dec. 12, 2006 as U.S. Pat. No. 7,147,609, the specification of which is incorporated herein by reference.

BACKGROUND OF THE INVENTION

Throughout history, there has been discussion and focus on the human male sex organ. Generally, having a large penis is seen as more masculine and manly than having a small penis. Well-endowed male pornography stars are looked at by many with admiration and envy due to the size of their penis.

In recent times, society has shown a strong resurgence in interest regarding matters pertaining to the penis. Viagra® (Viagra is a registered trademark of the Pfizer Corporation and refers to a compound for treating erectile dysfunction) has enjoyed tremendous success since its recent entry into the marketplace. Once marketed solely to older men having trouble achieving and maintaining an erection, Viagra® is now being marketed to and bought by younger men looking to enhance their sex lives. Moreover, just as a woman can undergo surgery for breast augmentation, so can a man undergo surgery to increase the size of his penis. The Internet is brimming with ads that market or sell products which claim to increase penis size.

Size Matters!

One of the most popular comments of recent days is “Size Matters!”, but what does this really mean? With all the recent attention show to increasing penis size, there is a remarkable lack of convenient and accurate methods for measuring the penis. Most men merely take a ruler and measure the size of their penis in inches. However, to adequately describe the size of a penis the length alone is not enough. Nor is it enough to know the diameter at an arbitrary point. The penis is not shaped like a true cylinder, but rather it has a more complicated shape. Therefore, a method for measuring the size of a penis needs to account for the unusual shape and size of the human penis.

What is needed is a better device for measuring the size of body part.

SUMMARY OF THE INVENTION

The present invention provides a volumetric measuring device for measuring a body part. The device includes a fluid container filled with fluid. The fluid container has a body part opening for permitting the insertion of a body part and a displaced fluid opening for permitting the flow of fluid that has been displaced as the result of inserting the body part. A fluid-tight barrier covers the body part opening and maintains a fluid-tight seal over the body part opening while the body part is being inserted. The volumetric measurement is determined by measuring the amount of displaced fluid after the insertion of the body part through the body part opening. In a preferred embodiment, the body part being measured is an erect penis.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a preferred fluid container.

FIG. 2 shows a side view of a preferred embodiment of the present invention.

FIG. 2A shows a preferred fluid-tight barrier.

FIGS. 3-6 show a preferred method for utilizing the present invention.

FIGS. 7-8 show another preferred embodiment of the present invention.

FIGS. 9A-9C show another preferred embodiment of the present invention.

FIGS. 10-14 show another preferred method for utilizing the present invention.

FIG. 15 shows another preferred embodiment of the present invention.

FIG. 16 shows another preferred embodiment of the present invention.

FIG. 17 shows another preferred embodiment of the present invention.

FIG. 18 shows another preferred embodiment of the present invention.

FIG. 19 shows another preferred embodiment of the present invention.

FIGS. 20-22 show another preferred embodiment of the present invention.

FIGS. 23-30 describe a sequence of operation of the preferred embodiment shown in FIGS. 20-22.

FIGS. 31-35 show another preferred embodiment of the present invention.

FIGS. 36-37 show another preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

First Preferred Embodiment

Preferred Fluid Container

FIG. 1 shows preferred fluid container 2. Fluid container 2 has displaced fluid opening 3 and body part opening 4. Fluid container 2 preferably has a height of approximately 13 inches and a diameter near opening 3 of approximately 4 inches. The diameter towards the base of fluid container 2 near opening 4 is approximately 6 inches.

Preferred Scale

As shown in FIG. 2, fluid container 2 has scale 5 for measuring the fluid inside fluid container 2. As shown by referring to FIG. 2, fluid container 2 is capable of holding approximately 2800 cc of fluid.

Watertight Barrier

FIG. 2 also shows watertight barrier 5 stretched over body part opening 4. Watertight barrier 5 forms a watertight seal over opening 4. In a preferred embodiment, watertight barrier 5 is a latex condom. By utilizing a condom as watertight barrier 5, multiple users can each safely use the device by supplying their own personal condom, The opening of the condom fits over circular lip 4A surrounding opening 4. For example, FIG. 2A shows a detailed view of watertight barrier 5 stretched over lip 4A of opening 4 to form the watertight seal.

Utilization of a Preferred Embodiment of the Present Invention

In FIG. 3, a user is filling fluid container 2 with water from hose 6. Fluid container 2 is resting on table 7.

In FIG. 4, water has been filled to the top of fluid container 2.

In FIG. 5, a user has inserted his erect penis into fluid container 2 through opening 4 (FIG. 1) while laying on his back. As indicated by the arrows, water inside fluid container 2 is overflowing. Watertight barrier 5 stretches as it receives the erect penis. Watertight barrier 5 also retains its watertight seal over opening 4 so that no water leaks out through opening 4.

In FIG. 6, fluid container 2 has been placed back down on top of table 7. An ample portion of the fluid has spilled out through opening 3 and the surface of the water level inside fluid container 2 has dropped significantly. By referring to scale 55, the user can determine that approximately 864 cc of water poured out though opening 3 while his erect penis was inserted. Therefore the user can conclude that his penis has a volume of approximately 864 cc.

Second Preferred Embodiment

FIG. 7 shows another preferred embodiment of the present invention. In this embodiment, door 8 is attached to fluid container 2 at hinge connection 9. By utilizing door 8, a user is able to carry fluid container 2 with him while it is filled with water. For example, FIG. 8 shows door 8 latched shut against fluid container 2 at latch 9. Door 8 is supporting the weight of the water inside fluid container 2 as it exerts force on watertight barrier. When the user is ready to insert his erect penis into fluid container 2, the user opens door 8 and inserts his penis in a manner similar to that described above.

Third Preferred Embodiment

A third preferred embodiment is shown in FIGS. 9A-9C. Measuring device 11 has fluid container 11b that is preferably approximately 13 inches×3 inches×3 inches and preferably holds approximately 1900 cc of fluid. Measuring device 11 is preferably fabricated from plastic and includes see-through window 21 having scale 22.

Measuring device 11 includes hose 13 connected to its top and vent 12 also on its top, In a preferred embodiment, hose 13 is threaded onto the top of measuring device 11 and hose 13 includes valve 19. Door 14 is connected to the side via hinge 15 and is latched shut with latch 16. Door 14 covers watertight barrier 17.

Utilization of the Third Preferred Embodiment

In FIG. 10, the user has removed hose 13 from displaced fluid opening 18 of measuring device 11. Door 14 and vent 12 are closed. The user is adding water to measuring device 11 through opening 18.

In FIG. 11, the user has attached hose 13 to measuring device 11 over opening 18. The user has also opened valve 19.

In FIG. 12, the user has unlatched and then opened door 4. The user then has inserted his erect penis into measuring device 11 through the body part opening covered by watertight barrier 17. Water inside measuring device 11 is displaced by the user's erect penis and it flows out through open valve 19 and then through hose 13 into sink 20.

In FIG. 13, the user has closed valve 19 and opened vent 12. The user has opened vent 12 to break any vacuum that may result as the erect penis is removed from measuring device 11.

In FIG. 14, the user has removed his erect penis from measuring device 11. Water still inside hose 13 is prevented from flowing back into measuring device 11 by closed valve 19. Door 14 has been shut and latched. The water remaining inside measuring device 11 is measured on scale 22. The user determines that since 947 cc of water was displaced by his erect penis, it can therefore be concluded that his penis has a displacement of 947 cc.

Fourth Preferred Embodiment

A fourth preferred embodiment of the present invention is shown in FIG. 15. The fourth preferred embodiment is very similar to the third preferred embodiment with an exception being that sink 20 (FIG. 12) has been replaced with portable fluid receptacle 25. For example, FIG. 15 shows hose 13 connected at one end to measuring device 11 and its other end connected to fluid receptacle 25. With the fourth preferred embodiment, the user does not have to be near a sink to utilize the present invention. Water displaced from measuring device 11 will be directed to fluid receptacle 25 via hose 13.

Fifth Preferred Embodiment

A fifth preferred embodiment is shown in FIG. 17. The embodiment shown in FIG. 17 is very similar to earlier preferred embodiments with an exception being that scale 30 replaced the earlier described scales.

For example, in FIG. 16 measuring device 11 utilizes scale 32 to measure the displacement of a user's erect penis. A very well endowed human male having an erect penis having length 12 inches and diameter of 2.5 inches may have an erect penis that has a volume of approximately 964 cubic centimeters. In comparison, a more typical male may have an erect penis size of approximately 6 inches and diameter of 1.75 inches. This more typical male will then have an erect penis that has a volume of approximately 236 cubic centimeters.

Applicant has noted that it is potentially confusing to compare or categorize human male penis size if the scale being utilized is cubic centimeters. Therefore, Applicant has devised his own scale which he refers to as “penile displacement number” or “pdn”. Preferably, the scale is designed so that the average male has a pdn of 100. By designing the scale so that the average size penis is 100 pdn, it makes this preferred embodiment more appealing to the average user. Applicant believes that it is more of a positive reinforcement to the user to say that he has a “100 pdn” rather than saying that he has a “23 pdn” or a “24 pdn”. Hence, in one embodiment, assuming that the volumetric displacement of the average erect penis is 236 cc, a preferred conversion factor between penile displacement number and cubic centimeters is 1 pdn=2.36 cc. Using this conversion factor a well-endowed male porn star having a penis volume of 964 cubic centimeters would instead refer to his erect penis as having a pdn of 408.5. Or, he might say that his penis size is 408.5 pdn. In comparison, an average male having a penis volume of 236 cubic centimeters would instead refer to his erect penis as having a pdn of 100. Or, he might say that his penis size is 100 pdn.

By utilizing the above-described preferred pdn scale, the average male is shown to have penis size equal to 100 pdn. It is then very easy to see how the average male compares to a very well endowed male. In the example above, it is immediately apparent that the male having a 408.5 pdn has a penis size that is approximately 308.5 percent above the size of the very well endowed male. Also, for example, a male with a penis size 10 percent above average could brag to his friends and lovers that he has a pdn of 110.

In FIG. 17, scale 30 is written in pdn units so that no mathematical conversion is necessary. For example by directly reading scale 30, the user can determine that the size of the erect penis is 408.5 pdn.

Sixth Preferred Embodiment

A sixth preferred embodiment is shown in FIG. 18. Although the above preferred embodiments described the utilization of the present invention to measure the size of an erect penis, the volumetric displacement of other body parts can likewise be determined with the present invention. For example, in FIG. 18 a user has inserted her breast 43 into measuring device 41. Water inside measuring device 41 is overflowing through displaced fluid opening 45. Watertight barrier 42 forms a watertight seal between the water in measuring device 41 and breast 43. The opening in this device is similar to the opening in the earlier described devices except the diameter is larger at approximately 8 inches.

To measure the volumetric displacement of her breast, the user removes her breast from measuring device 41 and then places measuring device 41 on a flat surface. The user then refers to scale 44 to determine the amount of water displaced. The amount of water displaced is equivalent to the volumetric displacement of her breast.

Seventh Preferred Embodiment

FIGS. 20 and 21 show perspective views of a seventh preferred embodiment of the present invention. FIG. 22 shows a simplified side view of the seventh preferred embodiment.

An explanation of the utilization of the seventh preferred embodiment can be seen by reference to FIGS. 23 to 30.

In FIG. 23, seal plug 301 (FIG. 22) has been removed and water is being poured into fill chamber 302. Opening 303 is large enough to allow air out during filling.

In FIG. 24, seal plug 301 has been placed over opening 303 to seal fill chamber 302. Also, condom 304 has been placed over the opening of insertion chamber 305

In FIG. 25, retaining ring 306 has been snap fitted over the opening of insertion chamber 305. Retaining ring 306 functions to hold condom 304 in place over the opening of insertion chamber 305 while the user's erect penis is inserted into the condom and into insertion chamber 305.

In FIG. 26, the user has inserted his erect penis into insertion chamber 305. Stop cock valve 306 has been opened by the user allowing water to flow from fill chamber 302 into insertion chamber 305. Duckbill check valve 307 allows air into fill chamber 302 during the filling process. Nylon ball valve 308 on top of insertion chamber 305 allows air to escape the insertion chamber. When water reaches the ball inside ball valve 308, the ball will float up and seal the vent orifice.

In FIG. 27, the user has closed stop cock valve 306 after insertion chamber 305 is filled with water.

In FIG. 28, the user has opened stop cock valve 309 to drain insertion chamber 305 into drain chamber 310. Drain port 311 is sealed with seal plug 312.

In FIG. 29, insertion chamber 305 has been completely drained. The user has closed stop cock valve 309. The user has removed his erect penis.

In FIG. 30, the user has turned measuring device 330 on its side. The volume of the erect penis can be determined by looking at the height of the water in fill chamber 302 against calibrated scale 315.

After reading the measurement, the user preferably removes retaining ring 306 and removes and discards used condom 304. The user then removes seal plugs 301 and 312. The user drains filling chamber 302 and drain chamber 310 and cleans the unit. Then the user reattaches seal plugs 301 and 312.

Eighth Preferred Embodiment

FIG. 31 shows another preferred embodiment of the present invention in which pneumatic measuring device 220 utilizes air displacement to determine the volume of a user's body part. Displacement sleeve 212 is connected to pump unit 211 via pneumatic hose 218. In one preferred embodiment, displacement sleeve 212 is a collapsible, foldable and flexible heavy vinyl displacement sleeve of sufficient size so that a user can insert his body part.

In FIG, 32, a user has inserted his arm into displacement sleeve 212. Cinch strap 217 has been pulled tight to provide an air tight seal around the user's arm. Pump unit 211 has been turned “on” causing signals to be sent from microcontroller 213 to positive displacement air pump 227 (FIG. 34) and to timer 228. Pump 227 has begun to pump air into displacement sleeve 212 at a steady rate. Because displacement sleeve 212 is flexible and collapsible, at first the air being pumped into displacement sleeve 212 will not increase the pressure inside the displacement sleeve. Rather, it will just be filling the displacement sleeve up with air. The pressure inside the displacement sleeve will remain at about 14.7 psia (0 psig) until the displacement sleeve is filled with air, Microcontroller 213 has been programmed to start timer 228 as soon as pressure gage 212 sends a signal that the pressure inside displacement sleeve 212 is greater than 0 psig.

In FIG. 33, pressure gage 214 indicates that the pressure inside displacement sleeve 212 is 3 psig and a corresponding signal is sent from pressure gage 214 to microcontroller 213. Microcontroller 213 has been programmed to “stop” pump 227 and timer 228 when the pressure inside displacement sleeve 212 is equal to 3 psig. Microcontroller 213 stops pump 227 and timer 228. Microcontroller 213 has sent a signal to display screen 215 representative of the volume of the user's arm. Accordingly, display screen 215 displays 454 cubic inches.

Microcontroller

In the preferred embodiment shown in FIG. 31, pneumatic measuring device 220 includes microcontroller 213 (see also FIG. 34). Preferably, microcontroller 213 is programmed to calculate the volume of a user's body part based on time differential.

For example, assume positive displacement air pump 227 pumps air at a constant rate (for example, 35 liters/minute).

Pump Rate=3.5 L/min=213.5 cubic inches/min

From the Ideal Gas Law,

PV=nRT, where P=Pressure; V=Volume of container, n=quantity of gas; R=constant; T=temperature
P₁V₁/n₁RT₁=P₂V₂/n₂RT₂

P₁=pressure inside displacement sleeve 212 prior to being pressurized by positive displacement air pump 227=14.7 psia

P₂=pressure inside displacement sleeve 212 after being pressurized by positive displacement air pump 227=17.7 psia

n₁=quantity of air inside displacement sleeve 212 prior to being pressurized by positive displacement air pump 227, where the length of the Displacement Sleeve is 32 inches and its diameter is 8 inches.

=1608 cubic inches

Solve for n₂=quantity of air inside displacement sleeve 212 after being pressurized by positive displacement air pump 227

For an empty Displacement Sleeve, V₁=V₂; and T₁=T₂,
Therefore, P₁/n₁=P₂/n₂

n₂=n₁(P₂/P₁)=(1608 cubic inches)(17.7 psia/14.7 psia)=1936 cubic inches.

Therefore, 1936 cu. in.−1608 cu. in.=328 cu. in. of air was added. Since pump 227 pumps air at a rate of 213.5 cu. in./min, it will take (328/213.5) min=92 secs to pressurize an empty Displacement Sleeve.

If an object or body part is placed inside displacement sleeve 227 that is ½ of the volume of displacement sleeve 227, we have: n₁=804 cubic inches.
Therefore, P₁/n₁=P₂/n₂

n₂=n₁(P₂/P₁)=(804 cubic inches)(17.7 psia/14.7 psia)=968 cubic inches.

Therefore, 968 cu. in.−804 cu. in.=164 cu. in. of air was added, Since pump 227 pumps air at a rate of 2135 cu. in./min, it will take (164/213.5) min=46 secs to pressurize an empty Displacement Sleeve.

It is seen that there is a linear relationship between the volume of space being pressurized and the amount of time that is required to pressurize the space to a predetermined pressure, in this case 3 psig (17.7 psia). The linear relationship is illustrated graphically in FIG. 35.

Microcontroller 213 is preferably programmed to utilize this linear relationship to automatically calculate the volume of the user's body part based on the time required for the displacement sleeve to be pressurized to 3 psig. For example, if it takes 26 seconds to pressurized displacement sleeve 227 to 3 psig, then the volume of the body part inside displacement sleeve=1608 cubic inches−(26 seconds)(1608 cubic inches/92 seconds)=1608 cubic inches−454 cubic inches=1154 cubic inches.

Ninth Preferred Embodiment

A ninth preferred embodiment of the present invention is shown in FIG. 36. In FIG. 36, pump unit 211 has been replaced with hand held air pump 232.

Air pump 232 pumps 6 cubic inches of air per pump.

From the Ideal Gas Law,

PV=nRT, where P=Pressure; V=Volume of container, n=quantity of gas; R=constant; T=temperature
P₁V₁/n₁RT₁=P₂V₂/n₂RT₂

P₁=pressure inside displacement sleeve 212 prior to being pressurized by air pump 232=14.7 psia

P₂=pressure inside displacement sleeve 212 after being pressurized by air pump 232=17.7 psia

n₁=quantity of air inside displacement sleeve 212 prior to being pressurized by positive displacement air pump 227, where the length of the Displacement Sleeve is 32 inches and its diameter is 8 inches.

=1608 cubic inches

Solve for n₂=quantity of air inside displacement sleeve 212 after being pressurized to 17.7 psia by air pump 232

For an empty Displacement Sleeve, V₁=V₂; and T₁=T₂,
Therefore, P₁/n₁=P₂/n₂

n₂=n(P₂/P₁)=(1608 cubic inches)(17.7 psia/14.7 psia)=1936 cubic inches.

Therefore, 1936 cu. in.−1608 cu. in.=328 cu. in. of air was added. Since pump 232 pumps air at a rate of 6 cu. in./pump, it will take (328/6) pumps−55 pumps=to pressurize an empty Displacement Sleeve to 3 psig.

There is a linear relationship between the volume of space being pressurized and the number of pumps that is required to pressurize the space to a predetermined pressure, in this case 3 psig (17.7 psia). For example, if it takes 33 pumps to pressurized displacement sleeve 227 to 3 psig, then the volume of the body part inside displacement sleeve=1608 cubic inches−(33 pumps)(1608 cubic inches/55 pumps)=1608 cubic inches−964.8 cubic inches=643.2 cubic inches.

This relationship is determined by the manufacturer and the embodiment shown in FIG E is preferably sold with a Table I (FIG. 37). Table I correlates the number of pumps to the volume of the body part inside displacement sleeve 227.

Although the above-preferred embodiments have been described with specificity, persons skilled in this art will recognize that many changes to the specific embodiments disclosed above could be made without departing from the spirit of the invention. For example, although the above preferred embodiments disclosed how the present invention can be used to volumetrically measure the penis and the breast, it could also be used to measure other body parts. For example, a weight lifter might be interested in measuring the volumetric change in the size of his arm after completing a rigorous workout. The present invention could easily be configured to accommodate the size of an arm. Also, another preferred embodiment could be utilized that is similar to the embodiment shown in FIG. 12. In FIG. 19, sink 77 is portable and is sold along with measuring device 11. Sink 77 includes scale 78. Therefore, the amount of fluid displaced can be measured inside sink 77 utilizing scale 78 to determine the size of the penis. Examples of a preferred portable sink include a cup with a scale, a bowl with a scale, or a bucket with a scale. Also, although it was described how a preferred conversion factor for determining pdn is 1 pdn=2.36 cc, many other conversion factors could also be utilized. For example, another possible conversion factor is 1 pdn=10 cc. Utilizing this conversion factor, an erect penis of 964 cc would have a pdn of 96.4. Or, the conversion factor could be 1.1 so that 1 pdn=1 cc. Regardless of the conversion factor, it is Applicant's belief that by referring to the scale as measuring in units of “penile displacement number” or “pdn”, a user will be more interested and more inclined to use the present invention. Also, although it was described how watertight barrier 5 is preferably a condom, watertight barrier 5 can be fabricated from a variety of other fluid-tight materials. For example, it could be flexible rubber, flexible plastic or a flexible latex based membrane. Therefore, the attached claims and their legal equivalents should determine the scope of the invention.

Claims

1. A volumetric measuring device for measuring body parts, comprising:

A. a fluid container filled with fluid,

B. a body part opening for permitting the insertion of a body part,

C. a displaced fluid opening for permitting the flow of fluid that has been displaced as a result of the insertion of said body part through said body part opening,

D. a fluid-tight barrier for completely covering said body part opening, wherein said fluid-tight barrier permits the insertion of said body part and into said body part opening while simultaneously maintaining a fluid-tight seal around said body part opening,

wherein the volumetric measurement of said body part is determined by measuring the amount of said displaced fluid after the insertion of said body part through said body part opening.

2. The volumetric measuring device as in claim 1, wherein said body part is an erect penis.

3. The volumetric measuring device as in claim 1, wherein said body part is a human breast.

4. The volumetric measuring device as in claim 1, wherein said fluid-tight barrier is a condom.

5. The volumetric measuring device as in claim 1, wherein the volume of said displaced fluid is measured in cubic centimeters.

6. The volumetric measuring device as in claim 1, wherein the volume of said displaced fluid is measured in penile displacement number.

7. The volumetric measuring device as in claim 6, wherein 100 pdn is approximately equal to a penis having a length of approximately 6 inches and a diameter of approximately 1.75 inches.

8. The volumetric measuring device as in claim 7, wherein one said penile displacement number is approximately equal to 2.36 cubic centimeters.

9. The volumetric measuring device as in claim 1, wherein said fluid-tight barrier is a flexible latex based membrane.

10. A volumetric measuring device for measuring body parts, comprising:

A. a fill chamber, comprising an opening to allow fluid into said fill chamber,

B. an insertion chamber comprising a body part opening, wherein said insertion chamber receives fluid from said fill chamber,

C. a fluid-tight barrier for completely covering said body part opening, wherein said fluid-tight barrier permits the insertion of said body part and into said body part opening while simultaneously maintaining a fluid-tight seal around said body part opening, and

D. a drain chamber for receiving displaced fluid from said insertion chamber after said body part has been inserted into said insertion chamber, wherein the volumetric measurement of said body part is determined by measuring the amount of fluid remaining in the volumetric measuring device after the insertion of said body part through said body part opening.

11. The volumetric measuring device as in claim 10, wherein the volumetric measurement of said body part is determined by measuring the amount of fluid remaining in the fill chamber after the insertion of said body part through said body part opening.

12. The volumetric measuring device as in claim 10, further comprising a first valve for controlling the flow of the fluid from said fill chamber to said insertion chamber and comprising a second valve for controlling the flow of said fluid from said insertion chamber to said drain chamber

13. A volumetric measuring device for measuring body parts, comprising:

A. a displacement sleeve,

B. a means for providing an air tight seal around a body part inserted into said displacement sleeve,

C. a pump for pumping air into said displacement sleeve while a body part is inserted into said displacement sleeve,

wherein the volumetric measurement of said body part is determined by measuring the amount of air displaced as a result of said body part being inserted into said displacement sleeve.

14. The volumetric measuring device as in claim 13, wherein said pump is an automatic pump that pumps air at a constant rate.

15. The volumetric measuring device as in claim 13 wherein the measurement of said body part is determined by measuring the amount of time it takes to pressurize said displacement sleeve with a body part inserted to a predetermined pressure.

16. The volumetric measuring device as in claim 13, wherein said pump is a manual pump that pumps air at a constant rate.

17. The volumetric measuring device as in claim 13 wherein the measurement of said body part is determined by measuring the number of pumps it takes to pressurize said displacement sleeve with a body part inserted to a predetermined pressure.