US3725648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic register apparatus
Assignee: Badger Meter Inc
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Filing: 1971-06-24
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Granted: 1973-04-03
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Expires: 1991-06-24
Abstract
Abstract An electromagnetically operated register is disclosed of the type having a U-shaped pole piece with one leg extending through the coil. The armature is linked to a separate ratchet arm, which is formed of plastic or other lightweight material and biased to the locking position by a leaf spring. The core slidably engages in the frame and serves as the support for the coil and as a keeper for the ratchet-operating mechanism, with a single pin retaining these components in assembled relation with the frame. The number wheels and index pinions comprise a subassembly, including the two pinion axles, having journal and snap engagement with the main frame.
Inventors
- 👤 R Schmick
- 👤 H Jacyno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:35
CPC Classifications
G; G06; G06M; G06M1/00; G06M1/04; G06M1/041; G06M1/044; G06M1/02
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
120 words
An electromagnetic register mechanism comprising a frame, register means having a ratchet wheel, a ratchet arm pivotally mounted on said frame for engaging said ratchet wheel, a spring member disposed to retain said ratchet arm in such pivotal mounting and to bias said arm to one predetermined position, a core member and an actuating coil each independent of said frame, said core member having slidable interlocking engagement with said frame and supporting said spring in position to so retain said ratchet arm, and said actuating coil being slidably engaged on said core member, whereby said ratchet arm, spring member, core member and coil are supported on said frame by such slidable interlocking engagement of said core member with said frame.
Claim 2
Dependent Claim
120 words
An electromagnetic register mechanism comprising a frame, register means having a ratchet wheel, a ratchet arm pivotally mounted on said frame for engaging said ratchet wheel, a spring member disposed to retain said ratchet arm in such pivotal mounting and to bias said arm to one predetermined position, a core member and an actuating coil each independent of said frame, said core member having slidable interlocking engagement with said frame and supporting said spring in position to so retain said ratchet arm, and said actuating coil being slidably engaged on said core member, whereby said ratchet arm, spring member, core member and coil are supported on said frame by such slidable interlocking engagement of said core member with said frame.
Claim 3
Dependent Claim
49 words
An electromagnetic register mechanism as in claim 1 including an armature plate pivotally mounted on said frame adjacent said core member, said arm being pivotally connected to said plate to be driven thereby against the force of said spring member when said plate is attracted toward said core member.
Claim 4
Dependent Claim
15 words
An electromagnetic register mechanism as in claim 2 wherein said arm is of nonferromagnetic material.
Claim 5
Dependent Claim
59 words
An electromagnetic register mechanism as in claim 2 wherein said core member is U-shaped, one end of said plate having telescopic engagement with a portion of said frame, one leg of said core member retaining said plate in such telescopic engagement with said portion of said frame and the other leg of said core member retaining said sprinG member.
Claim 6
Dependent Claim
26 words
An electromagnetic register mechanism as in claim 4 wherein said frame is a unitary member formed with slots for slidably receiving and supporting said core member.
Claim 7
Dependent Claim
59 words
An electromagnetic register mechanism as in claim 5 wherein said register means includes a register assembly comprising said ratchet wheel to be engaged by said ratchet arm, a mounting element having an interlocking connection with said frame, and counter mechanism including a spindle having one end supported in said mounting element and its opposite end supported in said frame.
Claim 8
Dependent Claim
35 words
An electromagnetic register mechanism as in claim 1 wherein said spring member engages said ratchet arm adjacent the pivotal mounting of said arm on said frame and at a point remote from such pivotal mounting.
Claim 9
Dependent Claim
88 words
An electromagnetic register comprising a frame member, an indicator assembly supported on said frame member and including a ratchet wheel, and a ratchet-operating mechanism releasably interlocked onto said frame member and engageable upon said ratchet wheel, said ratchet operating mechanism including a core member and a coil member each independent of said frame member, said core member slidably engaging said coil member and having slidable interlocking engagement with said frame member for supporting said core and coil members on said frame member by such slidable and interlocking engagement.
Claim 10
Dependent Claim
88 words
An electromagnetic register comprising a frame member, an indicator assembly supported on said frame member and including a ratchet wheel, and a ratchet-operating mechanism releasably interlocked onto said frame member and engageable upon said ratchet wheel, said ratchet operating mechanism including a core member and a coil member each independent of said frame member, said core member slidably engaging said coil member and having slidable interlocking engagement with said frame member for supporting said core and coil members on said frame member by such slidable and interlocking engagement.
Claim 11
Dependent Claim
22 words
An electromagnetic register as in claim 8 including fastener means for retaining said coil member in such interlocking engagement with said frame.
Claim 12
Dependent Claim
36 words
An electromagnetic register as in claim 8 including a base member, and a fastener pin securing said frame member to said base member and securing said core member in such interlocking engagement with said frame member.
Claim 13
Dependent Claim
42 words
An electromagnetic register as in claim 8 wherein said frame member is provided with at least one socket, and said indicator assembly includes a support member having a stud engaged in said socket for interlocking said indicator assembly onto said frame member.
Claim 14
Dependent Claim
40 words
An electromagnetic register as in claim 11 wherein said indicator assembly includes at least one spindle, one end of said spindle being engaged in said support member and the other end of said spindle being engaged in said frame member.
Claim 15
Dependent Claim
33 words
An electromagnetic register as in claim 8 wherein said frame includes spaced plates for receiving said coil member therebetween and said plates define channels for slidably receiving said core in such interlocking engagement.
Claim 16
Dependent Claim
133 words
An electromagnetic ratchet-operating mechanism comprising a frame, an electromagnet supported on said frame and including a core member, a ratchet arm positioned on one side of said core, said ratchet arm being pivotable about a fulcrum on said frame and having ratchet operating elements disposed to operably engage a ratchet wheel in two positions of movement of such arm about such fulcrum, a movable pole plate positioned adjacent an opposite side of said core and having a flexible connection to said arm, said electromagnet being operable to attract said pole plate toward said core and thereby to rotate said arm through said flexible connection about such fulcrum to move said arm to one of said positions, and a spring urging said arm to the other of said positions when said magnet is de-energized.
Claim 17
Dependent Claim
133 words
An electromagnetic ratchet-operating mechanism comprising a frame, an electromagnet supported on said frame and including a core member, a ratchet arm positioned on one side of said core, said ratchet arm being pivotable about a fulcrum on said frame and having ratchet operating elements disposed to operably engage a ratchet wheel in two positions of movement of such arm about such fulcrum, a movable pole plate positioned adjacent an opposite side of said core and having a flexible connection to said arm, said electromagnet being operable to attract said pole plate toward said core and thereby to rotate said arm through said flexible connection about such fulcrum to move said arm to one of said positions, and a spring urging said arm to the other of said positions when said magnet is de-energized.
Claim 18
Dependent Claim
122 words
An electromagnetic ratchet-operating mechanism comprising a frame, a lightweight nonferromagnetic ratchet arm pivotable about a fulcrum on said frame and including a pair of ratchet operating fingers disposed to operably engage a ratchet wheel in two positions of movement of said arm about such fulcrum, a movable pole plate having a flexible connection to said arm, an electromagnet including a core having at least one pole adjacent said pole plate, said electromagnet being operable to attract said pole plate toward said core and thereby to rotate said arm through said flexible connection about such fulcrum to move said arm to one of said positions, and a leaf spring urging said arm to the other of saId positions when said magnet is de-energized.
Claim 19
Dependent Claim
122 words
An electromagnetic ratchet-operating mechanism comprising a frame, a lightweight nonferromagnetic ratchet arm pivotable about a fulcrum on said frame and including a pair of ratchet operating fingers disposed to operably engage a ratchet wheel in two positions of movement of said arm about such fulcrum, a movable pole plate having a flexible connection to said arm, an electromagnet including a core having at least one pole adjacent said pole plate, said electromagnet being operable to attract said pole plate toward said core and thereby to rotate said arm through said flexible connection about such fulcrum to move said arm to one of said positions, and a leaf spring urging said arm to the other of saId positions when said magnet is de-energized.
Claim 20
Dependent Claim
130 words
An electromagnetic ratchet-operating mechanism comprising a frame, a lightweight nonferromagnetic ratchet arm pivotable about a fulcrum on said frame and including a pair of ratchet operating fingers disposed to operably engage a ratchet wheel in two positions of movement of said arm about such fulcrum, a movable pole plate having a flexible connection to said arm, an electromagnet including a core having at least one pole adjacent said pole plate, said electromagnet being operable to attract said pole plate toward said core and thereby to rotate said arm through said flexible connection about such fulcrum to move said arm to one of said positions, and a spring disposed intermediate said arm and said pole plate and urging said arm to the other of said positions when said magnet is de-energized.
Claim 21
Dependent Claim
130 words
An electromagnetic ratchet-operating mechanism comprising a frame, a lightweight nonferromagnetic ratchet arm pivotable about a fulcrum on said frame and including a pair of ratchet operating fingers disposed to operably engage a ratchet wheel in two positions of movement of said arm about such fulcrum, a movable pole plate having a flexible connection to said arm, an electromagnet including a core having at least one pole adjacent said pole plate, said electromagnet being operable to attract said pole plate toward said core and thereby to rotate said arm through said flexible connection about such fulcrum to move said arm to one of said positions, and a spring disposed intermediate said arm and said pole plate and urging said arm to the other of said positions when said magnet is de-energized.
Claim 22
Dependent Claim
132 words
An electromagnetic ratchet-operating mechanism comprising a frame, a lightweight nonferromagnetic ratchet arm pivotable about a fulcrum on said frame and including a pair of ratchet operating fingers disposed to operably engage a ratchet wheel in two positions of movement of said arm about such fulcrum, a movable pole plate having a flexible connection to said arm, an electromagnet including a core having at least one pole adjacent said pole plate and a coil member slidably and releasably engaged on said core, said electromagnet being operable to attract said pole plate toward said core and thereby to rotate said arm through said flexible connection about such fulcrum to move said arm to one of said positions, and a spring urging said arm to the other of said positions when said magnet is de-energized.
Claim 23
Dependent Claim
132 words
An electromagnetic ratchet-operating mechanism comprising a frame, a lightweight nonferromagnetic ratchet arm pivotable about a fulcrum on said frame and including a pair of ratchet operating fingers disposed to operably engage a ratchet wheel in two positions of movement of said arm about such fulcrum, a movable pole plate having a flexible connection to said arm, an electromagnet including a core having at least one pole adjacent said pole plate and a coil member slidably and releasably engaged on said core, said electromagnet being operable to attract said pole plate toward said core and thereby to rotate said arm through said flexible connection about such fulcrum to move said arm to one of said positions, and a spring urging said arm to the other of said positions when said magnet is de-energized.
Claim 24
Dependent Claim
34 words
The ratchet-operating mechanism of claim 17 wherein the fulcrum of said arm is disposed intermediate the flexible connection of said arm to said pole plate and the ratchet wheel engagement portion of said arm.
Claim 25
Dependent Claim
24 words
The ratchet-operating mechanism of claim 17 wherein said spring engages said arm intermediate said fulcrum and the ratchet wheel engagement portion of said arm.
Claim 26
Dependent Claim
37 words
An electromagnetic register comprising indicator means having a ratchet wheel, and a ratchet-operating mechanism as in claim 17, wherein said ratchet arm is disposed adjacent said ratchet wheel and positioned to engage and operate said ratchet wheel.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |