US3639868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic switch mounting means for a fluid motor unit
Assignee: Bimba LLC
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Filing: 1971-03-17
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Granted: 1972-02-01
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Expires: 1991-03-17
Abstract
Abstract An adjustable form of magnetic reed switch mounting means which utilizes a movable arm member in a slotted track member adapted to be mounted along the exterior cylinder wall of the air cylinder or other fluid motor unit. A preferred form of the track has a cross section curved interior surface while the base portion of the arm member that moves in the track has corresponding curvature and is capable of having transverse angular rotation with respect to the track and to the air cylinder so as to be able to fit against different sized housings.
Inventors
- 👤 Ralph L Gasper
- 👤 Donald E Riordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:46
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/20; F15B15/28; F15B15/2892; H; H01; H01H; H01H9/00; H01H9/02; H01H9/0207; H01H36/00; H01H36/0006
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
134 words
In combination with piston housing means, the improved arrangement of a magnetic switch and mounting means therefore, which comprises in combination, a magnet mounted on at least a portion of a nonmagnetic piston in the housing, a magnetic reed switch in adjustable support means along the exterior of the housing wall to be activated by the magnet on said piston, and said switch support means including a longitudinal slotted track member and an arm member, with the latter having a switch holding means at an outer extremity and a base section sized to engage and slidably fit within said slotted track member, said base section additionally providing at least some degree of transverse angular rotation with the slotted track member, whereby said arm member can fit against the exterior wall of varying diameter housings.
Claim 2
Dependent Claim
134 words
In combination with piston housing means, the improved arrangement of a magnetic switch and mounting means therefore, which comprises in combination, a magnet mounted on at least a portion of a nonmagnetic piston in the housing, a magnetic reed switch in adjustable support means along the exterior of the housing wall to be activated by the magnet on said piston, and said switch support means including a longitudinal slotted track member and an arm member, with the latter having a switch holding means at an outer extremity and a base section sized to engage and slidably fit within said slotted track member, said base section additionally providing at least some degree of transverse angular rotation with the slotted track member, whereby said arm member can fit against the exterior wall of varying diameter housings.
Claim 3
Dependent Claim
57 words
The magnetic switch mounting means of claim 1 further characterized in that said track member has a longitudinal slot with at least a portion of its transverse cross section being curved and the base section of the arm member slidable therein is similarly curved to be transversely rotatable within said slot as well as longitudinally movable therein.
Claim 4
Dependent Claim
40 words
The magnetic switch mounting means of claim 1 further characterized in that setscrew means is utilized between said base section of the arm member and said track member whereby the arm member may be fixably held in the track member.
Claim 5
Dependent Claim
69 words
The magnetic switch system of claim 1 further characterized in that the magnet on the piston within the piston housing will be fully circumferential around the piston, whereby the track can be along any portion of the housing and the magnetic switch in said arm member can extend from either side of said track member and be operable with respect to longitudinal movement of the piston in said housing.
Claim 6
Dependent Claim
41 words
The magnetic switch system of claim 4 still further characterized in that the circumferential magnet mounted on said piston is encompassed by a Teflon wear strip to preclude abrasive contact of any magnet material against the interior wall of the housing.
Claim 7
Dependent Claim
90 words
The magnetic switch system of claim 1 further characterized in that an angularly positioned setscrew means is provided through said base section to engage the interior of said track member, with said setscrew means being positioned angularly with respect to the normal axis of said base section such that the upper end of the setscrew slopes toward the side of the arm member having the switch holding means whereby there is an increase in the locking effectiveness of said setscrew means for holding the arm member in a nonliftable position.
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) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |