US3698658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording apparatus for sonar and echo sounding systems
Assignee: Individual
•
Filing: 1969-11-25
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Granted: 1972-10-17
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Expires: 1989-11-25
Abstract
Abstract The present invention relates to a recording apparatus for sonar and echo sounding systems, wherein a recording strip runs with constant linear velocity from an unwinding spool to a rewinding spool. The paper feed is preferably driven by driving means slipably coupled to the rewinding spool, the constant linear velocity of the paper being set by second driving means which are frictionally, but non-slipably, coupled to the recording strip roll formed on the rewinding spool. This driving arrangement allows both spools to be mounted in a common cartridge, which may be rapidly and easily inserted in and removed from the apparatus by means of a few simple, uncritical manual operations, the spools being preferably disposed symmetrically and with parallel axes in said replaceable cartridge, to allow an easy interchange of positions and working functions of the spools by simply turning the cartridge half a revolution.
Inventors
- 👤 Inge Skei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:25
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/52; G01S7/56; G01S7/60
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
179 words
Apparatus for unwinding and winding recording material at a predetermined linear velocity in a recording apparatus, comprising: a removable cartridge type housing for mounting in said recording apparatus; a first reel and a second reel mounted in parallel spaced relationship within said housing, said first and second reels are identical spools each including a rim of greater diameter than the diameter of recording material thereon; driven means frictionally coupled to the rim of said first reel for rotating said first reel to unwind recording material from said second reel at a greater linear velocity relative to said predetermined linear velocity of said recording material; braking means frictionally and non-slippingly engaging the outermost layer of said recording material wound on said first reel for retarding the linear velocity of said recording material to said predetermined linear velocity whereby said driven means continuously slips with respect to said rim; and primary driving means for driving said driven means and said braking means at respective constant linear velocities with said driven means rotating at a greater linear velocity than said braking means.
Claim 2
Dependent Claim
179 words
Apparatus for unwinding and winding recording material at a predetermined linear velocity in a recording apparatus, comprising: a removable cartridge type housing for mounting in said recording apparatus; a first reel and a second reel mounted in parallel spaced relationship within said housing, said first and second reels are identical spools each including a rim of greater diameter than the diameter of recording material thereon; driven means frictionally coupled to the rim of said first reel for rotating said first reel to unwind recording material from said second reel at a greater linear velocity relative to said predetermined linear velocity of said recording material; braking means frictionally and non-slippingly engaging the outermost layer of said recording material wound on said first reel for retarding the linear velocity of said recording material to said predetermined linear velocity whereby said driven means continuously slips with respect to said rim; and primary driving means for driving said driven means and said braking means at respective constant linear velocities with said driven means rotating at a greater linear velocity than said braking means.
Claim 3
Dependent Claim
134 words
Apparatus as in claim 1 wherein said primary driving means comprises an externally driven shaft extending parallel to the axes of said first and second reels, said shaft including first and second gears mounted thereon; said apparatus further comprising a supporting frame for mounting said braking means; said braking means including parallelly spaced shafts mounted within said supporting frame, said shafts each including a pair of parallelly spaced aligned rollers, and a pair of endless belts each rEspectively driven by one pair of said aligned rollers, a third gear mounted to one of said shafts and engaging said first gear for driving said pair of endless belts; said driven means including a fourth gear engaging said second gear and means driven by said fourth gear for slippingly engaging the rim of said first reel.
Claim 4
Dependent Claim
43 words
Apparatus as in claim 2 further comprising means connecting said supporting frame to said primary driving means so that rotation thereof increases the frictional engagement of said braking means with said recording material on said first reel to maintain said predetermined linear velocity.
Claim 5
Dependent Claim
117 words
Apparatus as in claim 1 wherein said primary driving means comprises an externally driven shaft extending parallel to the axes of said first and second reels, said shaft including first and second gears mounted thereon; said apparatus further comprising a supporting frame for mounting said braking means, said braking means including first and second parallelly spaced shafts mounted within said supporting frame, said first and second shafts each including a roller member mounted thereon and in driving engagement with one another, said first shaft including a third gear mounted thereon and engaging said first gear, said roller member of said second shaft engaging said recording material; said second gear slippingly engaging the rim of said first reel.
Claim 6
Dependent Claim
47 words
Apparatus as in claim 1 wherein said first and second reel are symmetrically mounted within said cartridge housing, whereby the unwinding of said recording material is reversed by a rotation of said cartridge housing so that the respective positions of said first and second reel are interchanged.
Claim 7
Dependent Claim
18 words
Apparatus as in claim 1 further comprising second braking means for retarding the rotation of said second reel.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |