# US 10,312,029 B2 · Illuminated vandal-resistant pushbutton switch

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- Number: US 10,312,029 B2
- Document ID: US10312029B2
- Status: Granted
- Kind: B2
- Application number: 15/690,512
- Filed: 2017-08-30
- Published: 2019-02-28
- Granted: 2019-06-04
- Earliest claimed: 2017-08-30
- Assignees: SCS Elevator Products Inc.
- Applicants: Stencil Cutting and Supply Co., Inc.
- Inventors: Tyson J. Augustin; Lee C. Kinney; Cole W. Majerus
- Web page: https://patentgrep.com/patent/US10312029B2

## CPC

- H01H 13/023: {Light-emitting indicators (for multi-layer switches H01H13/83)}
- H01H 13/10: Bases; Stationary contacts mounted thereon
- H01H 13/14: Operating parts, e.g. push-button
- H01H 2221/036: Return force
- H01H 2235/01: Spiral spring
- H01H: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00)

## Abstract

A pushbutton switch assembly is disclosed which includes a button body housing having a central opening and a mounting ring for mounting in a panel and optionally containing a halo, a pushbutton target system mounted in and operable with respect to the button body housing, a return spring for returning the pushbutton target system to a normal position when it is depressed and released, a base containing a source of illumination for fully lighting the pushbutton target system and any halo and containing one or more microswitches, and wherein the button body housing limits the travel of the pushbutton to just operate the one or more microswitches to prevent damage to components in the base from excessive force.

## Claims

### Claim 1

A pushbutton switch assembly comprising:
(a) a button body housing having a central opening and a mounting ring having an inclined inner surface area and an outer portion for mounting said pushbutton switch in a panel and optionally containing a halo;
(b) a pushbutton target system mounted in and operable with respect to said button body housing and having an outer inclined surface area aspect which matches said inclined inner mounting ring surface, a gap existing therebetween such that fully depressing said pushbutton target system produces contact between the inclined surfaces;
(c) a return spring for returning said pushbutton target system to a normal position when it is depressed and released;
(d) a base containing a source of illumination for fully lighting said pushbutton target system and any halo and containing one or more microswitches; and
(e) wherein said inclined inner surface area of said mounting ring of said button body housing limits travel of the outer inclined surface area of said pushbutton target to allow it to just operate said one or more microswitches; wherein the only contact between the pushbutton target system and the mounting ring is through the matching inclined surfaces.

### Claim 2 (depends on 1)

A pushbutton switch assembly as in claim 1 comprising a plurality of microswitches.

### Claim 3 (depends on 1)

A pushbutton switch assembly as in claim 1 wherein components limiting the travel of said pushbutton comprise stainless steel.

### Claim 4 (depends on 1)

A pushbutton switch assembly as in claim 1 wherein interacting surfaces of said button body housing and said pushbutton target system are stainless steel, any excessive force being distributed and dissipated through stainless steel components and a mounting panel.

### Claim 5 (depends on 4)

A pushbutton switch assembly as in claim 4 wherein said button body housing includes a halo.

### Claim 6 (depends on 1)

A pushbutton switch assembly as in claim 1 wherein said source of illumination is at least one LED device.

### Claim 7 (depends on 6)

A pushbutton switch assembly as in claim 6 wherein said source of illumination is a plurality of LED devices.

### Claim 8 (depends on 7)

A pushbutton switch assembly as in claim 7 wherein said button body housing includes a halo.