Patent US6560581B1 successfully refreshed from Google Patents.
US3842282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cassette for x-ray photography
Assignee: Fujifilm Holdings Corp
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Filing: 1973-04-19
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Granted: 1974-10-15
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Expires: 1993-04-19
Abstract
Abstract A cassette for X-ray photography comprising a frame having holes or notches at the front edge and having latch grooves at both sides of said holes or notches and a hinged cover in which biased latch members having a latch-releasing member in the center are provided, said latch-releasing member being so arranged that it fits into said hole or notch and said latch members being so arranged that they fit into said latch grooves, said hole or notch being adapted to receive a projection exterior of said cassette which can enter the hole or notch and release the latch members, thereby permitting removal of film in said cassette.
Inventors
- 👤 N Shimoda
- 👤 S Koba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:42
CPC Classifications
G; G03; G03B; G03B42/00; G03B42/02; G03B42/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
368 words
In a cassette for X-ray photography comprising: 1. a body comprising a face and front, rear, and side edges integrally mounted thereon; 2. a cover hingedly mounted on the rear edge of said body; and 3. a latching mechanism for latching said cover in closed position on said body, the improvement wherein: a. said body has: i. a pair of latch grooves on the inside of the front edge; ii. a pair of wedge-shaped upper lips on the inside of the front edge, one of said pair of wedge-shaped upper lips being located above each of said pair of latch grooves; and iii. a guide opening located between the pairs of latch grooves and wedge-shaped upper lips, said guide opening extending clear through the front edge of said body and b. said latching mechanism comprises: i. a pair of latch members movably mounted on the front edge of said cover, said latch members being positioned so that one will cooperate with one of said pair of latch grooves and the other will cooperate with the other of said pair of latch grooves when said cover is in closed position, said latch members having wedge-shaped front edges shaped to complement said wedge-shaped upper lips; ii. a latch releasing member integrally connected to said latch members, said latch releasing member being positioned to cooperate with said guide opening when said cover is in closed position; and iii. biasing means urging said pair of latch members and said latch releasing member towards the front of said cover, whereby, when said cover is swung shut, said latch members will first be forced towards the rear of said cover against the urging of said biasing means by the contact of the wedge-shaped front edges of said pair of latch members with said pair of wedge-shaped upper lips and will then engage said pair of latch grooves after said latch members have passed said wedge-shaped upper lips and said cover may be opened by means of the insertion of an appropriate cover-opening means into said guide opening, forcing said latch releasing member, and thus said pair of latch members as well, towards the rear of said cover against the urging of said biasing mEans.
Claim 2
Dependent Claim
368 words
In a cassette for X-ray photography comprising: 1. a body comprising a face and front, rear, and side edges integrally mounted thereon; 2. a cover hingedly mounted on the rear edge of said body; and 3. a latching mechanism for latching said cover in closed position on said body, the improvement wherein: a. said body has: i. a pair of latch grooves on the inside of the front edge; ii. a pair of wedge-shaped upper lips on the inside of the front edge, one of said pair of wedge-shaped upper lips being located above each of said pair of latch grooves; and iii. a guide opening located between the pairs of latch grooves and wedge-shaped upper lips, said guide opening extending clear through the front edge of said body and b. said latching mechanism comprises: i. a pair of latch members movably mounted on the front edge of said cover, said latch members being positioned so that one will cooperate with one of said pair of latch grooves and the other will cooperate with the other of said pair of latch grooves when said cover is in closed position, said latch members having wedge-shaped front edges shaped to complement said wedge-shaped upper lips; ii. a latch releasing member integrally connected to said latch members, said latch releasing member being positioned to cooperate with said guide opening when said cover is in closed position; and iii. biasing means urging said pair of latch members and said latch releasing member towards the front of said cover, whereby, when said cover is swung shut, said latch members will first be forced towards the rear of said cover against the urging of said biasing means by the contact of the wedge-shaped front edges of said pair of latch members with said pair of wedge-shaped upper lips and will then engage said pair of latch grooves after said latch members have passed said wedge-shaped upper lips and said cover may be opened by means of the insertion of an appropriate cover-opening means into said guide opening, forcing said latch releasing member, and thus said pair of latch members as well, towards the rear of said cover against the urging of said biasing mEans.
Claim 3
Dependent Claim
44 words
A cassette as claimed in claim 1 wherein said guide opening is a guide hole and said latch releasing member projects into said guide hole, whereby said latch releasing member takes on a cover-latching function complementary to that of said pair of latch members.
Claim 4
Dependent Claim
12 words
a cover hingedly mounted on the rear edge of said body; and
Claim 5
Dependent Claim
12 words
a cover hingedly mounted on the rear edge of said body; and
Claim 6
Dependent Claim
26 words
A cassette as claimed in claim 1 wherein said guide opening is a guide notch, open to the top of the front edge of said body.
Claim 7
Dependent Claim
332 words
a latching mechanism for latching said cover in closed position on said body, the improvement wherein: a. said body has: i. a pair of latch grooves on the inside of the front edge; ii. a pair of wedge-shaped upper lips on the inside of the front edge, one of said pair of wedge-shaped upper lips being located above each of said pair of latch grooves; and iii. a guide opening located between the pairs of latch grooves and wedge-shaped upper lips, said guide opening extending clear through the front edge of said body and b. said latching mechanism comprises: i. a pair of latch members movably mounted on the front edge of said cover, said latch members being positioned so that one will cooperate with one of said pair of latch grooves and the other will cooperate with the other of said pair of latch grooves when said cover is in closed position, said latch members having wedge-shaped front edges shaped to complement said wedge-shaped upper lips; ii. a latch releasing member integrally connected to said latch members, said latch releasing member being positioned to cooperate with said guide opening when said cover is in closed position; and iii. biasing means urging said pair of latch members and said latch releasing member towards the front of said cover, whereby, when said cover is swung shut, said latch members will first be forced towards the rear of said cover against the urging of said biasing means by the contact of the wedge-shaped front edges of said pair of latch members with said pair of wedge-shaped upper lips and will then engage said pair of latch grooves after said latch members have passed said wedge-shaped upper lips and said cover may be opened by means of the insertion of an appropriate cover-opening means into said guide opening, forcing said latch releasing member, and thus said pair of latch members as well, towards the rear of said cover against the urging of said biasing mEans.
Claim 8
Dependent Claim
332 words
a latching mechanism for latching said cover in closed position on said body, the improvement wherein: a. said body has: i. a pair of latch grooves on the inside of the front edge; ii. a pair of wedge-shaped upper lips on the inside of the front edge, one of said pair of wedge-shaped upper lips being located above each of said pair of latch grooves; and iii. a guide opening located between the pairs of latch grooves and wedge-shaped upper lips, said guide opening extending clear through the front edge of said body and b. said latching mechanism comprises: i. a pair of latch members movably mounted on the front edge of said cover, said latch members being positioned so that one will cooperate with one of said pair of latch grooves and the other will cooperate with the other of said pair of latch grooves when said cover is in closed position, said latch members having wedge-shaped front edges shaped to complement said wedge-shaped upper lips; ii. a latch releasing member integrally connected to said latch members, said latch releasing member being positioned to cooperate with said guide opening when said cover is in closed position; and iii. biasing means urging said pair of latch members and said latch releasing member towards the front of said cover, whereby, when said cover is swung shut, said latch members will first be forced towards the rear of said cover against the urging of said biasing means by the contact of the wedge-shaped front edges of said pair of latch members with said pair of wedge-shaped upper lips and will then engage said pair of latch grooves after said latch members have passed said wedge-shaped upper lips and said cover may be opened by means of the insertion of an appropriate cover-opening means into said guide opening, forcing said latch releasing member, and thus said pair of latch members as well, towards the rear of said cover against the urging of said biasing mEans.
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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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |