This invention is directed towards a hair comb which includes a fluid (e.g., hair oil) reservoir in the body of the comb. The fluid in the fluid reservoir is positively ejected under the influence of an air pump into the teeth of a comb. The fluid passes through an adjustable needle valve so that the feed rate to the teeth of the comb is precisely variable over a wide range. The fluid then passes around roller or ball bearings mounted in the teeth ends of the comb, for uniform distribution over the hair and scalp. The combination of a positive pressure fluid dispenser, and adjustable needle valve to control the positive flow of oil and distribution means, via roller bearings, provides an improved, precisely controllable, oil-reservoir hair comb with uniform fluid distribution.

BACKGROUND OF THE INVENTION 
Oil reservoir hair combs are known in the prior art. The closest patents 
known to the applicant are listed below: 
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PATENT NO. PATENTEE ISSUE DATE 
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1,065,814 A. E. Lambert 6-24-13 
2,539,634 L. H. Pepin 1-30-51 
2,624,348 C. I. Matson 1-6-53 
2,295,746 N. R. Metzler 9-15-42 
2,897,826 S. S. Di Vito 8-4-59 
1,449,096 F. M. Grieten 3-20-23 
1,436,776 P. Nach 11-28-22 
3,101,086 S. S. Di Vito 8-20-63 
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These references do not show a means for precisely dispensing, under 
positive pressure, a fluid, e.g., oil, to the teeth of the comb, and its 
subsequent uniform distribution from the comb teeth onto the hair. This 
invention provides an economical means for achieving such a desirable 
result.

DETAILED DESCRIPTION OF THE INVENTION 
The fluid reservoir hair comb of this invention is generally designated by 
the numeral 10. The hair comb 10 comprises a fluid reservoir body 12, an 
air pump 14, mounted to the reservoir body 12, an adjustable needle valve 
means 16, provided at the lower end of the reservoir body, and comb body 
18 carrying the teeth portion of the hair comb. The just enumerated main 
parts of the hair comb are made preferably of metal or inert plastic 
material. 
The reservoir body 12 is generally rectangular in both vertical and 
horizontal cross-section. The reservoir body 12 has lower inwardly sloping 
ends 13 forming a lower neck portion 30 of the reservoir body. Mounted 
within the neck portion 30 is the adjustable needle valve 16, the details 
of which will be later described. 
The fluid reservoir body 12 is provided, in its upper portion, with a 
conventional piston-type air pump 14, actuated by means of the depression 
of a button 32. The button 32 preferably contains a gauge 34, for 
measuring the air pressure within the reservoir body 12, and can be 
readily depressed by means of a thumb of a user of the hair comb 10. Air 
entry into the pump 14, is provided by means of port 36. Fluid entry, to 
the reservoir body 12, is provided by means of a conventional screw-on 
knurled filler cap 38. 
The needle valve means 16, provided at the neck 30 of the reservoir body 
12, comprises a needle 40, mounted for vertical movement, within needle 
conduit 42. The needle 42 has a series of notches 43 formed in its upper 
section, adapted to engage, and mesh with, the teeth 45 of rotatably 
mounted wheel 47. The vertical movement of the needle is controlled by 
rotation of the toothed rotatable wheel 47, the wheel 47, in turn, being 
rotated by means of external knob 48 affixed to the wheel 47, by means of 
shaft 53. The knob 48 has a raised central portion 49, functioning as the 
pointer of an indexing means. When the pointer 49 is located at the index 
numeral zero, the needle 40 is fully seated within needle conduit 42. When 
indexing means 42 is set at the index numeral 6, this corresponds to the 
maximum open position of the needle valve means 16, i.e., needle 40 is in 
the uppermost vertical position with respect to conduit 42. When the 
needle 40 is unseated from the conduit 42, as shown in FIG. 3, fluid from 
reservoir 12 will flow, through ports 39, into comb body 18 via conduit 
42. 
The comb body 18 is provided with a plurality of teeth 60, each of which 
has an inner bore 62, fluid connected to the upper portion of the comb 
body 18a, as best seen in FIG. 4. A roller ball or roller bearing 63, is 
rotatably mounted within the end of each tooth 60 to permit release of oil 
in bore 62 upon movement of the comb through a person'hair, in a uniform 
manner. 
In operation, the filler cap 38 is removed, and a fluid, such as hair oil, 
is added to the reservoir body 12, preferably up to the fill line mark 64. 
It is preferred that the needle valve 40-42 be set at zero during the fill 
operation, and that the needle valve remain at zero until the hair is to 
dispense fluid. 
At the time of use, positive pressure is created within the reservoir body 
12, by actuating the air pump 14, and compressing the air above the fluid 
level, to a predetermined positive pressure, above atmospheric pressure, 
as measured by gauge 34. The needle valve setting is then adjusted to a 
point above zero, e.g., to setting No. 3, as shown in FIG. 1, when 
dispensing of fluid from the rollers 63 of teeth 60 is desired. 
The aforedescribed combination of a positive pressure fluid dispense, 
adjustable needle valve to control the positive flow of oil and 
distribution means, via roller bearings, provides an improved, precisely 
controllable, oil-reservoir hair comb with uniform fluid distribution to 
the hair and scalp.