US4097967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snap lock structure
Assignee: Individual
•
Filing: 1977-04-20
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Granted: 1978-07-04
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Expires: 1997-04-20
Abstract
Abstract This invention is a snap lock structure used with paper or plastic bag members to close an open end in a sealed, airtight manner. The snap lock structure includes an upper clamp member integral through a connector section with a lower clamp member. The upper and lower clamp members are similar, each having a main body and outer clamp sections. The upper clamp member has an outer lock head portion which engages in a locked condition a lock receiver portion of the lower clamp member. The connector section has a shield member to maintain the bag members in proper position for clamping.
Inventors
- 👤 William Nicholas Conner, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:40
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/16; B65D33/1658; B65D33/1675; Y; Y10; Y10T; Y10T24/00; Y10T24/15; Y10T24/44; Y10T24/44641; Y10T24/44744; Y10T24/44752
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
139 words
A snap lock structure connectable to a neck portion of a bag structure to provide an airtight seal, comprising: (a) an upper clamp member secured through a connector section to a lower clamp member; (b) said upper clamp member having a main clamp body connected through a clamp section to a lock receiver portion; (c) said lower clamp member having a main body clamp connected through a connector clamp section to a lock head portion; (d) said lock receiver portion and said lock head portion engaged in a latched condition and biased into engagement by the bag structure; and (e) the bag member in the clamped condition operates to separate said main clamp body and said main body clamp to create a clamping force between said lock receiver portion and said lock head portion to provide the clamping action.
Claim 2
Dependent Claim
139 words
A snap lock structure connectable to a neck portion of a bag structure to provide an airtight seal, comprising: (a) an upper clamp member secured through a connector section to a lower clamp member; (b) said upper clamp member having a main clamp body connected through a clamp section to a lock receiver portion; (c) said lower clamp member having a main body clamp connected through a connector clamp section to a lock head portion; (d) said lock receiver portion and said lock head portion engaged in a latched condition and biased into engagement by the bag structure; and (e) the bag member in the clamped condition operates to separate said main clamp body and said main body clamp to create a clamping force between said lock receiver portion and said lock head portion to provide the clamping action.
Claim 3
Dependent Claim
55 words
A snap lock structure as described in claim 1, wherein: (a) said lock head portion having curved sidewalls joining to form a blade edge, and (b) said lock receiver portion having a slot therein to receive said blade edge therein in the latched condition and hold said blade edge against lateral movement until intentionally released.
Claim 4
Dependent Claim
28 words
A snap lock structure as described in claim 2, wherein: (a) said lock receiver portion having an upright stop wall to direct said blade edge into said slot.
Claim 5
Dependent Claim
50 words
A snap lock structure as described in claim 1, wherein: (a) said clamp section and said connector clamp section extended outwardly and laterally of said main clamp body and said main body clamp, respectively, so as to be easily grasped by one's fingers to move from latched to unlatched conditions.
Claim 6
Dependent Claim
44 words
A snap lock structure as described in claim 4, wherein: (a) said lock head portion having curved sidewalls joining to form a blade edge; and (b) said lock receiver portion having a slot therein to receive said blade edge therein in the latched condition.
Claim 7
Dependent Claim
81 words
A snap lock structure as described in claim 1, wherein: (a) said lock head portion having a top wall, inclined sidewalls connected to said top wall, and a blade edge formed by the junction of said sidewalls; and (b) said lock receiver portion having a top wall, a connector slot in said top wall, and an upwardly extended stop wall connected to said top wall; whereby said stop wall directs said blade edge into said connector slot in the latched condition.
Claim 8
Dependent Claim
67 words
A snap lock structure as described in claim 1, wherein: (a) said main clamp body of circular shape in transverse cross section; and (b) said main body clamp of generally circular shape in transverse cross section except having a semi-circular cut-out section which cooperates with an adjacent portion of said main clamp body to achieve a maximum area of contact with the bag member when clamped therebetween.
References Cited (Backward Citations)
GB226141A
Cited
US1780880A
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US2653048A
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US2628396A
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US3604066A
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US3629905A
Cited
US3937394A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-03 | 1982-01-02 | 1982-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-03 | 1986-01-02 | 1986-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-03 | 1990-01-02 | 1990-07-04 | $7700.00 | Window Closed / Lapsed |