US3910119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording thermometer
Assignee: CARGO GRAPHICS CORP
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Filing: 1972-05-15
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Granted: 1975-10-07
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Expires: 1992-05-15
Abstract
Abstract A thermograph for automatically recording variations of temperature correlated with the passage of time and characterized by a light weight and durable construction protectively combined with a shipping container which serves as a housing enclosing the instrument while exposing a heat transfer element for quick response and a direct recording of prevailing temperature upon a chart. The instrument is a permanent and reuseable unit that is carried within the expendible shipping container to produce a thermogram from a prepared chart of pressure sensitive material that is transported over a thermometer stylus by means of a clock motor drive.
Inventors
- 👤 William H Maxwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:03
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/02; G01K1/022
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
164 words
An instrument for recording a line variably displaced between opposite side margins of an elongated chart transported therethrough and adapted to be written upon, and including; a frame having an upwardly faced planar table portion supportably engaging the chart and having a transverse opening adjacent one end of the table portion and extending between the opposite side margins of the chart, a planar facia spaced from the table portion of the frame forming a chart passage therebetween and having a writing opening substantially coextensive with said planar table portion and having a downwardly faced transverse platen portion overlying the said transverse opening adjacent one end of the table portion of the frame, drive means transporting the elongated chart through said passage to pass beneath the platen portion of the facia, and a condition recording means comprising a stylus engageable with the chart through said transverse opening in the frame and displaceable between the opposite side margins of the chart to record a line thereon.
Claim 2
Dependent Claim
164 words
An instrument for recording a line variably displaced between opposite side margins of an elongated chart transported therethrough and adapted to be written upon, and including; a frame having an upwardly faced planar table portion supportably engaging the chart and having a transverse opening adjacent one end of the table portion and extending between the opposite side margins of the chart, a planar facia spaced from the table portion of the frame forming a chart passage therebetween and having a writing opening substantially coextensive with said planar table portion and having a downwardly faced transverse platen portion overlying the said transverse opening adjacent one end of the table portion of the frame, drive means transporting the elongated chart through said passage to pass beneath the platen portion of the facia, and a condition recording means comprising a stylus engageable with the chart through said transverse opening in the frame and displaceable between the opposite side margins of the chart to record a line thereon.
Claim 3
Dependent Claim
65 words
The instrument for recording a variable displaced line on a chart to be written upon as set forth in claim 1 wherein a temperature moveable element is coupled to a hub journaled on an axis normal to the platen portion of the planar facia by a bracket depending from the frame, the stylus being rotatably carried by said hub to record temperature on said chart.
Claim 4
Dependent Claim
70 words
The instrument for recording a variably diSplaced line on a chart to be written upon as set forth in claim 1 wherein a bi-metal thermometer is anchored to a bracket depending from the frame and is coupled to a hub journaled on an axis normal to the platen portion of the planar facia by said bracket, the stylus being rotatably carried by said hub to record temperature on said chart.
Claim 5
Dependent Claim
134 words
The instrument for recording a variably displaced line on a chart to be written upon as set forth in claim 1, wherein the instrument is contained within a housing having a window in one wall thereof, wherein a bi-metal thermometer is anchored to a bracket depending from the frame and is coupled to a hub journaled on an axis normal to the platen portion of the planar facia by said bracket, the stylus being rotatably carried by said hub to record temperature on said chart, and wherein the bracket is made of heat absorbing material and has a planar section of greater area than said window and having marginal portions thereof engaged against the inner side of said one wall, thereby exposing the bracket and anchored thermometer to heat conditions external of the housing.
Claim 6
Dependent Claim
58 words
The instrument for recording a variably displaced line on a chart to be written upon as set forth in claim 1 wherein a hub is journaled on an axis normal to the platen portion of the planar facia by a bracket depending from the frame, the stylus being rotatably carried by said hub to record on said chart.
Claim 7
Dependent Claim
71 words
The instrument for recording a variably displaced line on a chart to be written upon as set forth in claim 1 wherein a temperature moveable element is anchored to a bracket depending from the frame and is coupled to a hub journaled on an axis normal to the platen portion of the planar facia by said bracket, the stylus being rotatably carried by said hub to record temperature on said chart.
Claim 8
Dependent Claim
76 words
The instrument for recording a variably displaced line on a chart to be written upon as set forth in claim 1 wherein a spirally shaped bi-metal thermometer is statically anchored to a bracket depending from the frame and has a live end coupled to a hub journaled on an axis normal to the platen portion of the planar facia by said bracket, the stylus being rotatably driven by said hub to record temperature on said chart.
Claim 9
Dependent Claim
140 words
The instrument for recording a variably displaced line on a chart to be written upon as set forth in claim 1, wherein the instrument is contained within a housing having a window in one wall thereof, wherein a spirally shaped bi-metal thermometer is statically anchored to a bracket depending from the frame and has a live end coupled to a hub journaled on an axis normal to the platen portion of the planar facia by said bracket, the stylus being rotatably driven by said hub to record temperature on said chart, and wherein the bracket is made of heat absorbing material and has a planar section of greater area than said window and having marginal portions thereof engaged against the inner side of said one wall, thereby exposing the bracket and anchored thermometer to heat conditions external of the housing.
References Cited (Backward Citations)
US2060984A
Cited
US2557437A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |