US3817102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined temperature-humidity index computation kit
Assignee: United States Department of the Army
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Filing: 1972-10-26
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Granted: 1974-06-18
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Expires: 1992-10-26
Abstract
Abstract Wet bulb, dry bulb and black globe analog thermometers are mounted in parallel on shock-proof support bars within a hingedtop box. The support bars are themselves mounted on hinges so that the thermometer assembly can be partially rotated out of the box to a position above the top of the box. The handle used to rotate the assembly out of the box also serves to shield the dry bulb thermometer from incident radiant energy. A special purpose slide rule is attached to the inside top of the box for the purpose of computing a combined temperature-humidity index based on readings taken from the three thermometers.
Inventors
- 👤 G Shea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:03
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/02; G01K1/04; G01K1/045; G01N; G01N25/00; G01N25/56; G01N25/62
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
124 words
A device for determining a combined temperature-humidity index, comprising: a. a container; b. a wet bulb thermometer; c. a first dry bulb thermometer; d. a second dry bulb thermometer; e. black globe, radiation absorption, analog means attached to the sensor end or said second dry bulb thermometer; f. hinged means attached to said container for mounting said thermometers within said container whereby said thermometers may be rotated from within said container to positions that expose the sensor ends of said thermometers to the environment; and g. a shield attached to said hinged means for mounting said thermometers so that said shield does not touch said first dry bulb thermometer and shields the sensor end of said first dry bulb thermometer from incident radiant energy.
Claim 2
Independent Claim
124 words
A device for determining a combined temperature-humidity index, comprising: a. a container; b. a wet bulb thermometer; c. a first dry bulb thermometer; d. a second dry bulb thermometer; e. black globe, radiation absorption, analog means attached to the sensor end or said second dry bulb thermometer; f. hinged means attached to said container for mounting said thermometers within said container whereby said thermometers may be rotated from within said container to positions that expose the sensor ends of said thermometers to the environment; and g. a shield attached to said hinged means for mounting said thermometers so that said shield does not touch said first dry bulb thermometer and shields the sensor end of said first dry bulb thermometer from incident radiant energy.
Claim 3
Dependent Claim
112 words
A device as recited in claim 1, wherein said black globe, radiation absorption, analog means comprises: a. a black first tube with one end closed and of slightly larger diameter than the sensor end of said second dry bulb thermometer, so that said tube fits over and covers the sensor end of said second dry bulb thermometer; and b. a transparent second tube with both ends closed, of larger diameter and length than said first tube and having a plurality of holes through the surface thereof with at least one of said holes being of sufficient size to allow said second tube to fit over and completely envelope said black first tube.
Claim 4
Dependent Claim
112 words
A device as recited in claim 2, wherein said hinged means for mounting said thermometers comprises: at least two parallel members, each of said parallel members having adjacent apertures, said apertures in each of said parallel members being relatively longitudinally aligned; b. a resilient member having a passage therethrough lining each of said apertures, the axes of said passages and said apertures being coincident; c. said thermometers selectively projecting through said passages in adjacent parallel relation; and d. tandem mounting means connected to said parallel members and fixedly secured to said container whereby said parallel members carrying said thermometers may be rotated from within said container to positions parallel to said container.
Claim 5
Dependent Claim
43 words
A device as recited in claim 3 wherein said tandem mounting means comprises arms connected at one end thereof to opposite ends of each of said parallel members and at an opposite end thereof to corresponding base members fixedly secured in said container.
Claim 6
Independent Claim
348 words
A method for determining a combined temperature-humidity index, comprising: a. exposing a wet bulb thermometer, a first dry bult thermometer having the sensor end shielded from incident radiant energy and a second dry bulb thermometer having black glove, radiation absorption, analog means covering the sensor end thereof to the environment to be tested; b. waiting a sufficient time to allow said thermometers to reach a state of equilibrium with said environment; c. providing a calculator comprising a fixed and a movable member with a cursor attached to the fixed member, said calculator having on said movable member a first scale of values corresponding to temperatures read from said wet bulb thermometer, a second scale of values corresponding to tempeRatures read from said first dry bulb thermometer, and a third scale of values corresponding to temperatures read from said second dry bulb thermometer, said calculator also having on said fixed member a fourth scale of values corresponding to values of a temperature-humidity index; d. aligning said third scale with said fourth scale so that a value on one scale is aligned with a common value on the other scale, reading the value indicated on said second dry bulb thermometer, and moving said cursor to a value on said third scale that corresponds to the value read from said second dry bulb thermometer; e. sliding said movable member so that a value on said second scale equal to said common value is aligned with said cursor, reading the value indicated on said first dry bulb thermometer, and moving said cursor to a value on said second scale that corresponds to the value read from said first dry bulb thermometer; f. sliding said movable member so that a value on said first scale equal to said common value is aligned with said cursor, reading the value indicated on said wet bulb thermometer, and moving said cursor to a value on said first scale that corresponds to the value read from said wet bulb thermometer; and g. reading said temperature-humidity index from the value indicated on said fourth scale by said cursor.
Claim 7
Independent Claim
348 words
A method for determining a combined temperature-humidity index, comprising: a. exposing a wet bulb thermometer, a first dry bult thermometer having the sensor end shielded from incident radiant energy and a second dry bulb thermometer having black glove, radiation absorption, analog means covering the sensor end thereof to the environment to be tested; b. waiting a sufficient time to allow said thermometers to reach a state of equilibrium with said environment; c. providing a calculator comprising a fixed and a movable member with a cursor attached to the fixed member, said calculator having on said movable member a first scale of values corresponding to temperatures read from said wet bulb thermometer, a second scale of values corresponding to tempeRatures read from said first dry bulb thermometer, and a third scale of values corresponding to temperatures read from said second dry bulb thermometer, said calculator also having on said fixed member a fourth scale of values corresponding to values of a temperature-humidity index; d. aligning said third scale with said fourth scale so that a value on one scale is aligned with a common value on the other scale, reading the value indicated on said second dry bulb thermometer, and moving said cursor to a value on said third scale that corresponds to the value read from said second dry bulb thermometer; e. sliding said movable member so that a value on said second scale equal to said common value is aligned with said cursor, reading the value indicated on said first dry bulb thermometer, and moving said cursor to a value on said second scale that corresponds to the value read from said first dry bulb thermometer; f. sliding said movable member so that a value on said first scale equal to said common value is aligned with said cursor, reading the value indicated on said wet bulb thermometer, and moving said cursor to a value on said first scale that corresponds to the value read from said wet bulb thermometer; and g. reading said temperature-humidity index from the value indicated on said fourth scale by said cursor.
Claim 8
Dependent Claim
48 words
A device as recited in claim 1, which further comprises: a. a cover connected to said container; and b. slide rule means for calculating said combined temperature humidity index attached to said cover whereby readings taken from said thermometers are correlated to produce said combined temperature humidity index.
Claim 9
Dependent Claim
48 words
A device as recited in claim 4, which further comprises: a. a cover connected to said container; and b. slide rule means for calculating said combined temperature humidity index attached to said cover whereby readings taken from said thermometers are correlated to produce said combined temperature humidity index.
Claim 10
Independent Claim
104 words
A device for determining a combined temperature-humidity index, comprising: a. a wet bulb thermometer; b. a first dry bulb thermometer; c. a second dry bulb thermometer; d. black globe, radiation absorption, analog means attached to the sensor end of said second dry bulb thermometer; e. means for maintaining said thermometers mutually spaced so that said thermometers are exposed to the same environmental conditions; and f. a shield attached to said means for maintaining said thermometers mutually spaced so that said shield does not touch said first dry bulb thermometer and shields the sensor end of said first dry bulb thermometer from incident radiant energy.
Claim 11
Independent Claim
104 words
A device for determining a combined temperature-humidity index, comprising: a. a wet bulb thermometer; b. a first dry bulb thermometer; c. a second dry bulb thermometer; d. black globe, radiation absorption, analog means attached to the sensor end of said second dry bulb thermometer; e. means for maintaining said thermometers mutually spaced so that said thermometers are exposed to the same environmental conditions; and f. a shield attached to said means for maintaining said thermometers mutually spaced so that said shield does not touch said first dry bulb thermometer and shields the sensor end of said first dry bulb thermometer from incident radiant energy.
Claim 12
Dependent Claim
21 words
A device as recited in claim 8 wherein said thermometers are connected and secured in a mutually spaced, adjacent, parallel relation.
Claim 13
Dependent Claim
112 words
Radiation absorption apparatus for use in combination with a dry bult thermometer having a sensor end for measuring environmental temperatures comprising: a. a black first tube with one end closed and of slightly larger diameter than the sensor end of a dry bulb thermometer, so that said black first tube fits over and covers the sensor end; and b. a transparent second tube with both ends closed, of larger diameter and length than said first tube and having a plurality of holes through the surface thereof with at least one of said holes being of sufficient size to allow said second tube to fit over and completely envelope said black first tube.
Claim 14
Dependent Claim
112 words
Radiation absorption apparatus for use in combination with a dry bult thermometer having a sensor end for measuring environmental temperatures comprising: a. a black first tube with one end closed and of slightly larger diameter than the sensor end of a dry bulb thermometer, so that said black first tube fits over and covers the sensor end; and b. a transparent second tube with both ends closed, of larger diameter and length than said first tube and having a plurality of holes through the surface thereof with at least one of said holes being of sufficient size to allow said second tube to fit over and completely envelope said black first tube.
Claim 15
Dependent Claim
79 words
Radiation absorption apparatus as recited in claim 10 wherein: a. said black first tube further comprises a black copper sheath adapted to fit anugly over the sensor end; and b. said transparent second tube further comprises: i. a body portion with one end closed; and ii. a cap portion which is adapted to snap onto the open end of said body portion and having a center hole to allow said cap portion to slide onto a dry bulb thermometer.
References Cited (Backward Citations)
US2681572A
Cited
US3531991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |