US3598419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ring latches
Assignee: Muskegon Piston Ring Co
•
Filing: 1969-07-22
•
Granted: 1971-08-10
•
Expires: 1989-07-22
Abstract
Abstract A latching device for accurately abutting parted ends of a piston ring by engaging the expander-spacer of the ring, the device comprising a flexible molded or stamped body dimensioned so as to fit between the sides of the expander-spacer adjacent the part, the body having two pairs of ears projecting outwardly so as to engage said adjacent sides of said ring in their openings, but not so far as to extend out beyond the faces of the sides of the expander-spacer.
Inventors
- 👤 Kenneth J Nisper
- 👤 Robert Lakanen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:23
CPC Classifications
F; F16; F16J; F16J9/00; F16J9/12; F16J9/14; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1457; Y10T24/1459; Y10T24/1461; Y10T24/1463; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49876; Y10T29/49945
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
214 words
A one-piece latch for holding in closed position the ends of a parted piston ring, the ring, in its relaxed condition having a gap between its ends at the part; the ring having axially extending sides forming a circumferential channel opening through one radial face of said ring, said ring adjacent each of its ends having a pair of openings one in each of said sides of said channel, said latch comprising an elongated body adapted to seat within said channel with its midpoint substantially at said part; a pair of wings adjacent each of the ends of said body, one on each side thereof, one wing of each pair on each side of said body and adapted to seat in each of said openings; the sides of said body at said wings being flexible to permit said sides to be forced toward each other sufficiently to pass said wings into said channel during installation; cooperating planer surfaces of the latch and ring sides for holding the ends of the ring in axial alignment and cooperating surfaces on said wings and openings and the distance between the pair of wings lengthwise of the latch being such as will hold the ends of the ring closed when the ring is seated in a ring groove.
Claim 2
Dependent Claim
214 words
A one-piece latch for holding in closed position the ends of a parted piston ring, the ring, in its relaxed condition having a gap between its ends at the part; the ring having axially extending sides forming a circumferential channel opening through one radial face of said ring, said ring adjacent each of its ends having a pair of openings one in each of said sides of said channel, said latch comprising an elongated body adapted to seat within said channel with its midpoint substantially at said part; a pair of wings adjacent each of the ends of said body, one on each side thereof, one wing of each pair on each side of said body and adapted to seat in each of said openings; the sides of said body at said wings being flexible to permit said sides to be forced toward each other sufficiently to pass said wings into said channel during installation; cooperating planer surfaces of the latch and ring sides for holding the ends of the ring in axial alignment and cooperating surfaces on said wings and openings and the distance between the pair of wings lengthwise of the latch being such as will hold the ends of the ring closed when the ring is seated in a ring groove.
Claim 3
Dependent Claim
181 words
A one-piece latch for closing together in aligned relationship the ends of a parted piston ring, the ring, in its relaxed condition having a gap between its ends at the part, the ring having an expander-spacer with radially extending axially spaced sides forming a circumferential channel, said expander-spacer adjacent each of its ends having a pair of openings one in each of said sides of said channel, said latch comprising: an elongated body, said body on each side of its longitudinal midpoint having a pair of oppositely extending ears, one receivable in each of said openings in said sides; said latch body in the portion thereof having said ears being resiliently compressible to permit said ears to be introduced into said channel; cooperating planer surfaces on the latch and sPacer-expander sides for holding the ends of the ring in axial alignment and cooperating surfaces on said ears and openings and the distance between the pairs of ears lengthwise of the latch being such as will hold the ends of the ring closed when the ring is seated in a ring groove.
Claim 4
Dependent Claim
181 words
A one-piece latch for closing together in aligned relationship the ends of a parted piston ring, the ring, in its relaxed condition having a gap between its ends at the part, the ring having an expander-spacer with radially extending axially spaced sides forming a circumferential channel, said expander-spacer adjacent each of its ends having a pair of openings one in each of said sides of said channel, said latch comprising: an elongated body, said body on each side of its longitudinal midpoint having a pair of oppositely extending ears, one receivable in each of said openings in said sides; said latch body in the portion thereof having said ears being resiliently compressible to permit said ears to be introduced into said channel; cooperating planer surfaces on the latch and sPacer-expander sides for holding the ends of the ring in axial alignment and cooperating surfaces on said ears and openings and the distance between the pairs of ears lengthwise of the latch being such as will hold the ends of the ring closed when the ring is seated in a ring groove.
Claim 5
Dependent Claim
36 words
The latch as defined in claim 2, wherein said body has a significant portion of its cross section void and said ears are prevented from projecting axially beyond the faces of said sides of said ring.
Claim 6
Dependent Claim
14 words
The latch as defined in claim 3 wherein said body is a U-shaped channel.
Claim 7
Dependent Claim
27 words
The latch as defined in claim 3 wherein said body is wedge-shaped with a groove running from the center of said body to both of its ends.
Claim 8
Dependent Claim
31 words
The latch as defined in claim 2 wherein said body includes means for sliding said body into said sides from the opening in the sides forming the gap of said part.
Claim 9
Dependent Claim
26 words
The latch as defined in claim 6 wherein said sliding means includes tapered surfaces at both ends of said body, said tapered surfaces forming a point.
Claim 10
Dependent Claim
192 words
A one-piece latch for closing together in aligned relationship the ends of a parted piston ring, the ring, in its relaxed condition having a gap between its ends at the part, the ring having an expanded-spacer with radially extending axially spaced sides forming a circumferential channel accessible from one radial face of said ring, said expander-spacer adjacent each of its ends having a pair of openings one in each of said sides of said channel, said latch comprising: an elongated body seated in said channel, said body on each side of its longitudinal midpoint having a pair of oppositely extending ears one received in each of said openings in said sides; said latch body in the portion thereof having said ears being resiliently compressible to permit said ears to be introduced into said channel; cooperating planer surfaces on the latch and spacer-expander sides holding the ends of the ring in axial alignment and cooperating surfaces on said ears and openings and the distance between the pairs of ears lengthwise of the latch being such that the ends of the ring are held closed when the ring is seated in a ring groove.
Claim 11
Dependent Claim
192 words
A one-piece latch for closing together in aligned relationship the ends of a parted piston ring, the ring, in its relaxed condition having a gap between its ends at the part, the ring having an expanded-spacer with radially extending axially spaced sides forming a circumferential channel accessible from one radial face of said ring, said expander-spacer adjacent each of its ends having a pair of openings one in each of said sides of said channel, said latch comprising: an elongated body seated in said channel, said body on each side of its longitudinal midpoint having a pair of oppositely extending ears one received in each of said openings in said sides; said latch body in the portion thereof having said ears being resiliently compressible to permit said ears to be introduced into said channel; cooperating planer surfaces on the latch and spacer-expander sides holding the ends of the ring in axial alignment and cooperating surfaces on said ears and openings and the distance between the pairs of ears lengthwise of the latch being such that the ends of the ring are held closed when the ring is seated in a ring groove.
Claim 12
Dependent Claim
37 words
The piston ring as defined in claim 8 wherein said body has a significant portion of its cross section void and said ears are prevented from projecting axially beyond the faces of said sides of said ring.
Claim 13
Dependent Claim
15 words
The piston ring as defined in claim 8 wherein said body is a U-shaped channel.
Claim 14
Dependent Claim
28 words
The piston ring as defined in claim 9 wherein said body is wedge-shaped with a groove running from the center of said body to both of its ends.
References Cited (Backward Citations)
GB190622979A
Cited
US3472521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |