US3749872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switch mounted on printed circuit board
Assignee: SUMLOCK ANITA ELECTRONICS Ltd
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Filing: 1971-04-01
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Granted: 1973-07-31
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Expires: 1991-04-01
Abstract
Abstract A switch for use with a printed circuit board has a square cover body with flexible clamps for engaging the edges of a square aperture to hold the switch casing on the board. One push button version has a spring biased button moving a guiding rod alongside a contact operating peg for depressing a contact spring mounted on the board. A pivot mounted version has a spring biased detent mechanism operating over a V-shaped ridge for holding the contact operating peg in either a closed or open switch position. The switch elements are mounted on the printed circuit board, and the casing is positioned to operate the contacts.
Inventors
- 👤 E Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:01
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/58; H01H1/5805
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
200 words
An electrical switch for printed circuits comprising in combination, a circuit substrate having switch mounting aperture structure defined therein, a pair of electrically conductive circuits on said substrate, a switch contact assembly having a stationary contact affixed to one of said electrically conductive circuits and a movable contact element in the form of an elongated resilient member affixed at one end to the other one of said electrically conductive circuits in a position that the unconnected end is disposed adjacent to and spaced from said stationary contact to be moved into contact therewith by flexing of said resilient member, a switch casing assembly mounted on said substrate by mounting means engaging said mounting aperture structure and enclosing said switch contact assembly, manually movable contact operating means with a movable member disposed to bend said unconnected end of said movable switch contact element into said stationary contact to operate the switch contact assembly between open and closed switch positions between said pair of electrical circuits on said substrate, and mounting means holding said manually movable means on said casing assembly with said movable Member in position to move said movable switch contact element in a wiping motion with said stationary contact.
Claim 2
Dependent Claim
200 words
An electrical switch for printed circuits comprising in combination, a circuit substrate having switch mounting aperture structure defined therein, a pair of electrically conductive circuits on said substrate, a switch contact assembly having a stationary contact affixed to one of said electrically conductive circuits and a movable contact element in the form of an elongated resilient member affixed at one end to the other one of said electrically conductive circuits in a position that the unconnected end is disposed adjacent to and spaced from said stationary contact to be moved into contact therewith by flexing of said resilient member, a switch casing assembly mounted on said substrate by mounting means engaging said mounting aperture structure and enclosing said switch contact assembly, manually movable contact operating means with a movable member disposed to bend said unconnected end of said movable switch contact element into said stationary contact to operate the switch contact assembly between open and closed switch positions between said pair of electrical circuits on said substrate, and mounting means holding said manually movable means on said casing assembly with said movable Member in position to move said movable switch contact element in a wiping motion with said stationary contact.
Claim 3
Dependent Claim
159 words
A switch according to claim 1, wherein the substrate material is in the form of a sheet and said mounting means includes flexible tags for engaging the substrate at said aperture structure; and wherein the aperture structure in the substrate material comprises a plurality of slots; and wherein the tags of the mounting means are made of a resilient material and have a tapered edge which lead to a recess whose width is equal to the thickness of the substrate material at the side of the slots so that when the tags are inserted into respective apertures, the tapered edges of the tags being so positioned to act against the sides of the slots to flex the tags from their unflexed positions until the recesses are aligned with the sides of the slots, whereupon the tags flex back to their unflexed positions so that the recesses thereon engage the sides of the slots and the substrate material adjacent thereto.
Claim 4
Dependent Claim
47 words
A switch as defined in claim 1, wherein said movable contact operating member comprises a post and said substrate defines a guiding bore for defining a movement path therewith, and a separate peg member movable with said post that abuts the position of said movable contact element.
Claim 5
Dependent Claim
30 words
A switch as defined in claim 1 including an aperture in said substrate near the switch contact assembly and means movable with the contact operating means passing through said aperture.
Claim 6
Dependent Claim
54 words
A switch as defined in claim 1 wherein said movable contact operating means comprises a switch top member pivoted on said mounting means to move between two stable positions with structure flexing said movable contact element as said swtich top member is pivoted to close said switch in one of said two stable positions.
Claim 7
Dependent Claim
71 words
A switch as defined in claim 5, including indexing means for holding said switch top member in either of said two stable positions comprising a ridge member affixed to said mounting means, and a spring biased plunger assembly movable with said contact arm to engage said ridge member so that it passes over the crest of the ridge as the switch top member is pivoted from one position to the other.
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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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |