US3767209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for the precise positioning of magnetic heads
Assignee: W Bogen GmbH
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Filing: 1971-02-10
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Granted: 1973-10-23
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Expires: 1991-02-10
Abstract
Abstract An apparatus for properly positioning a magnetic head in a screening housing so that the head maintains a relatively constant angular relation to a magnetic tape or the like which passes the head in engagement for reading, reproducing or erasing whereby a plurality of fitting markers are provided on the floor of the housing with which the head cooperates. In the embodiment below, the markers are tongues bent up from the screening housing floor and a spring in the housing exerts a force on the head urging it against the tongues. The base plate upon which the housing is mounted is also preferably provided with similar tongues, serving as fitting markers, so that each tongue of the base plate engages one of the tongues of the housing floor to further properly position the housing.
Inventors
- 👤 E Seehawer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:00
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/10; G11B5/48
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
104 words
In combination: a stray field screening housing for holding a matnetic head said housing having a top, a plurality of sides, a bottom and a plurality of separated fitting markers formed on said bottom and raised above it for properly locating a head, a magnetic head mounted in said housing so as to abut in cooperation with said fitting markers so that said head is properly located, and a base plate fastened to the bottom of said housing, said base plate having a plurality of further fitting markers each cooperating with one of said fitting markers of said housing for properly locating said housing.
Claim 2
Dependent Claim
104 words
In combination: a stray field screening housing for holding a matnetic head said housing having a top, a plurality of sides, a bottom and a plurality of separated fitting markers formed on said bottom and raised above it for properly locating a head, a magnetic head mounted in said housing so as to abut in cooperation with said fitting markers so that said head is properly located, and a base plate fastened to the bottom of said housing, said base plate having a plurality of further fitting markers each cooperating with one of said fitting markers of said housing for properly locating said housing.
Claim 3
Dependent Claim
95 words
In combination: a stray field screening housing for holding a magnetic head, said housing having a top, a plurality of sides, a bottom and a plurality of separated fitting markers formed on said bottom and raised above it for properly locating a head, a magnetic head mounted in saId housing so as to abut in cooperation with said fitting markers so that said head is properly located, and a spring located in said housing for exerting a force on said head to urge said head into its proper location in contact with said fitting markers.
Claim 4
Dependent Claim
95 words
In combination: a stray field screening housing for holding a magnetic head, said housing having a top, a plurality of sides, a bottom and a plurality of separated fitting markers formed on said bottom and raised above it for properly locating a head, a magnetic head mounted in saId housing so as to abut in cooperation with said fitting markers so that said head is properly located, and a spring located in said housing for exerting a force on said head to urge said head into its proper location in contact with said fitting markers.
Claim 5
Dependent Claim
29 words
In a combination as in claim 2 wherein said spring exerts a force in both a horizontal direction toward said markers and in a vertical direction toward said bottom.
Claim 6
Dependent Claim
35 words
In a combination as in claim 2 wherein each of said markers is a tongue which has been stamped in on three sides and which has been bent up from said bottom or base plate.
Claim 7
Dependent Claim
32 words
In a combination as in claim 1 wherein each of said markers is a tongue which has been stamped in on three sides and which has been bent up from said base.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |