Patent US3893221A successfully refreshed from Google Patents.
US3893221A
Expired / Lapsed
US
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Lens assembly mounting method and apparatus
Assignee: Polaroid Corp
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Filing: 1973-12-26
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Granted: 1975-07-08
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Expires: 1993-12-26
Abstract
Abstract A lens mounting and securing apparatus in the form of a resilient retaining ring fits over a portion of a lens housing to secure the lens assembly to the shutter housing of a photographic camera. The resilient retaining ring is configured with a plurality of inwardly extending tab members which allow a portion of the lens housing to pass through the retaining ring in one direction while preventing any movement in the opposite direction to thereby fixedly secure the lens housing to the shutter housing. Additionally, the retaining ring is provided with a plurality of tab members for proper positioning of the retaining ring.
Inventors
- 👤 Walter G Lehmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:53
CPC Classifications
B; B23; B23P; B23P11/00; B23P11/02; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10S411/97; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49876; Y10T29/49947
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
169 words
A method of assembling at least first and second components, said first component being provided with a first aperture, with a retaining member, said retaining member having a planar peripheral portion and a plurality of coplanar first tabs defining a second aperture and a plurality of second tabs resiliently connected to said peripheral portion and extending in a direction away from the plane of said peripheral portion comprising the steps of: inserting said second component at least partly through said first aperture in said first component; inserting said second component through said second aperture in contact with at least one of said first tabs to locate said retaining member with respect to said second component; further inserting said second component through said second aperture and into engagement with said second tabs whereby said second tab members are caused to resiliently move away from said plane and admit said second member therebetween so as to prevent the withdrawal thereof; and bringing said retaining member into abutment with said first component.
Claim 2
Independent Claim
169 words
A method of assembling at least first and second components, said first component being provided with a first aperture, with a retaining member, said retaining member having a planar peripheral portion and a plurality of coplanar first tabs defining a second aperture and a plurality of second tabs resiliently connected to said peripheral portion and extending in a direction away from the plane of said peripheral portion comprising the steps of: inserting said second component at least partly through said first aperture in said first component; inserting said second component through said second aperture in contact with at least one of said first tabs to locate said retaining member with respect to said second component; further inserting said second component through said second aperture and into engagement with said second tabs whereby said second tab members are caused to resiliently move away from said plane and admit said second member therebetween so as to prevent the withdrawal thereof; and bringing said retaining member into abutment with said first component.
Claim 3
Independent Claim
159 words
A method of assembling at least a first component having a first aperture and a second component with a retaining member having a planar peripheral portion and a plurality of coplanar first tabs defining a second aperture and a plurality of second tabs resiliently connected to said peripheral portion and extending in a direction away from the plane of said peripheral portion comprising the steps of: engaging said retaining member and said first component with said first and second apertures in registry; inserting said second component through said first and second apertures in contact with at least one of said first tabs to locate said retaining member with respect to said second component; and further inserting said second component through said first and second apertures and into engagement with said second tabs whereby said second tab members are caused to resiliently move away from said plane and admit said second member therebetween so as to prevent the withdrawal thereof.
Claim 4
Independent Claim
159 words
A method of assembling at least a first component having a first aperture and a second component with a retaining member having a planar peripheral portion and a plurality of coplanar first tabs defining a second aperture and a plurality of second tabs resiliently connected to said peripheral portion and extending in a direction away from the plane of said peripheral portion comprising the steps of: engaging said retaining member and said first component with said first and second apertures in registry; inserting said second component through said first and second apertures in contact with at least one of said first tabs to locate said retaining member with respect to said second component; and further inserting said second component through said first and second apertures and into engagement with said second tabs whereby said second tab members are caused to resiliently move away from said plane and admit said second member therebetween so as to prevent the withdrawal thereof.
Claim 5
Dependent Claim
309 words
In combination with a photographic camera of the type including a shutter housing having a generally planar forward wall portion with a first circular aperture therethrough, means for securing a photographic objective lens assembly to said housing, including: a lens housing assembly having at least one lens element secured therewithin, said housing assembly having a first cylindrical portion having a diameter slightly smaller than said first aperture whereby said first portion may snugly pass through said first aperture, said first portion extending through said first aperture, said housing assembly having a second cylindrical portion having a diameter larger than said aperture so that it cannot pass therethrough in abutment with said wall portion; and a retaining member of a dimension unable to pass through said aperture and having means defining a variable aperture therethrough, positioned over said first portion in abutment with the opposite side of said wall portion from said second portion; said variable aperture defining means engaging and gripping said first portion such that any force tending to move said second portion out of abutment with said wall portion will cause said aperture defining means to exert an increased grip on said first portion to secure said lens housing to said shutter housing, said retaining member comprising a generally planar ring having a rotational axis of symmetry, said retaining member including locating means for registering said retaining member with respect to said first portion to facilitate the positioning of said retaining member over said first portion, said locating means comprising a plurality of first tab members extending inwardly to define a circular aperture of diameter slightly larger than that of said first portion, and said variable aperture defining means including a plurality of inwardly extending second tab members extending out of the plane of said ring in a direction toward and along said rotational axis of symmetry.
Claim 6
Dependent Claim
309 words
In combination with a photographic camera of the type including a shutter housing having a generally planar forward wall portion with a first circular aperture therethrough, means for securing a photographic objective lens assembly to said housing, including: a lens housing assembly having at least one lens element secured therewithin, said housing assembly having a first cylindrical portion having a diameter slightly smaller than said first aperture whereby said first portion may snugly pass through said first aperture, said first portion extending through said first aperture, said housing assembly having a second cylindrical portion having a diameter larger than said aperture so that it cannot pass therethrough in abutment with said wall portion; and a retaining member of a dimension unable to pass through said aperture and having means defining a variable aperture therethrough, positioned over said first portion in abutment with the opposite side of said wall portion from said second portion; said variable aperture defining means engaging and gripping said first portion such that any force tending to move said second portion out of abutment with said wall portion will cause said aperture defining means to exert an increased grip on said first portion to secure said lens housing to said shutter housing, said retaining member comprising a generally planar ring having a rotational axis of symmetry, said retaining member including locating means for registering said retaining member with respect to said first portion to facilitate the positioning of said retaining member over said first portion, said locating means comprising a plurality of first tab members extending inwardly to define a circular aperture of diameter slightly larger than that of said first portion, and said variable aperture defining means including a plurality of inwardly extending second tab members extending out of the plane of said ring in a direction toward and along said rotational axis of symmetry.
Claim 7
Dependent Claim
29 words
The invention as stated in claim 3, wherein said first tab members are coplanar with said ring and said second tab members are longer than said first tab members.
Claim 8
Dependent Claim
44 words
The invention of claim 4, wherein said second tab members extend resiliently from said ring whereby they will be pushed outward in response to the pressing of said retaining member onto said first portion to define an aperture sufficient to receive said first portion.
Claim 9
Dependent Claim
31 words
The invention as described in claim 5, wherein said lens housing assembly is plastic and said retaining member comprises a monolithic steel member having a yield strength less than 100,000 psi.
Claim 10
Dependent Claim
259 words
Apparatus for securing an objective lens assembly to the shutter housing of a photographic camera, said shutter housing including a forward wall portion having an aperture therethrough and said lens assembly including a housing having a first portion of a dimension insertable through said aperture and a second portion of a dimension unable to pass through said aperture, said apparatus including: a resilient retaining member of a dimension unable to pass through said aperture comprising a generally planar ring having a rotational axis of symmetry and having means defining a variable aperture therethrough, including a plurality of radially inward extending second tab members extending out of the plane of said ring in a direction along said rotational axis of symmetry, whereby said member may be positioned over said first portion in abutment with the opposite side of said wall portion from said second portion when said first portion is inserted through said aperture; said variable aperture defining means engaging and gripping said first portion such that any force tending to move said lens assembly away from said wall portion will cause said aperture defining means to exert an increased grip on said first portion thereby securing said lens assembly to said shutter housing, said retaining member further including locating means comprising a plurality of first tab members extending radially inward to define a circular aperture of a diameter smaller than said dimension of said first portion for registering said retaining member with respect to said first portion to facilitate the positioning of said retaining member over said first portion.
Claim 11
Dependent Claim
259 words
Apparatus for securing an objective lens assembly to the shutter housing of a photographic camera, said shutter housing including a forward wall portion having an aperture therethrough and said lens assembly including a housing having a first portion of a dimension insertable through said aperture and a second portion of a dimension unable to pass through said aperture, said apparatus including: a resilient retaining member of a dimension unable to pass through said aperture comprising a generally planar ring having a rotational axis of symmetry and having means defining a variable aperture therethrough, including a plurality of radially inward extending second tab members extending out of the plane of said ring in a direction along said rotational axis of symmetry, whereby said member may be positioned over said first portion in abutment with the opposite side of said wall portion from said second portion when said first portion is inserted through said aperture; said variable aperture defining means engaging and gripping said first portion such that any force tending to move said lens assembly away from said wall portion will cause said aperture defining means to exert an increased grip on said first portion thereby securing said lens assembly to said shutter housing, said retaining member further including locating means comprising a plurality of first tab members extending radially inward to define a circular aperture of a diameter smaller than said dimension of said first portion for registering said retaining member with respect to said first portion to facilitate the positioning of said retaining member over said first portion.
Claim 12
Dependent Claim
29 words
The invention as described in claim 7, wherein said first tab members are coplanar with said ring and said second tab members are longer than said first tab members.
Claim 13
Dependent Claim
64 words
The invention as set forth in claim 8, wherein said second tab members extend resiliently from said ring to initially define an aperture of a dimension insufficient to receive said first portion whereby said second tab members may be pushed outward in response to the pressing of said retaining member onto said first portion to define an aperture sufficient to receive said first portion.
Claim 14
Dependent Claim
31 words
The invention as described in claim 9, wherein said lens housing assembly is plastic and said retaining member comprises a monolithic steel member having a yield strength less than 100,000 psi.
References Cited (Backward Citations)
US2643581A
Cited
US2620539A
Cited
US2884283A
Cited
US2941270A
Cited
US2880641A
Cited
US3312483A
Cited
US3232088A
Cited
US3236528A
Cited
US3219087A
Cited
US3197169A
Cited
US3241874A
Cited
US3388647A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |