US3828290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overvoltage protector holder and housing
Assignee: Joslyn Manufacturing and Supply Co
•
Filing: 1972-12-20
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Granted: 1974-08-06
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Expires: 1992-12-20
Abstract
Abstract An overvoltage protection apparatus is described including an improved housing containing the overvoltage protection device and a separate holder member within which such device is secured. The housing includes a cover member and base member of a tapered shape so that the cover member is freed from such base member after it slides along a guide slot only about one-third the length of such base member. A concealed tamper-proof lock means is provided on the top portion of the cover and base member, including a notch and a cooperating lock projection which lock the cover in its closed position. The holder member is a hollow box of transparent plastic insulating material for holding the overvoltage protection device to enable it to be easily inserted into and removed out of engagement with electrical contacts on the base member while reducing the danger of electrical shock.
Inventors
- 👤 C Kawiecki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:25
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/20; H01H85/2045; H01T; H01T1/00; H01T1/14
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
147 words
An overvoltage protection apparatus in which the improvement comprises: a base member of electrical insulating material; an overvoltage protection device mounted on said base member; a cover member releasably attached to said base member to form a housing containing said protection device in a closed position of said cover member, said cover member and said base member being of a tapered shape over substantially their entire length; and lock means for automatically locking said cover member to said base member when they are moved into said closed position; and guide means for guiding the sliding movement of said cover member along said base member between said closed position and an open position where the cover member is freed of the base member to enable removal of the cover member after said cover member slides over only a small portion of the entire length of said base member.
Claim 2
Dependent Claim
147 words
An overvoltage protection apparatus in which the improvement comprises: a base member of electrical insulating material; an overvoltage protection device mounted on said base member; a cover member releasably attached to said base member to form a housing containing said protection device in a closed position of said cover member, said cover member and said base member being of a tapered shape over substantially their entire length; and lock means for automatically locking said cover member to said base member when they are moved into said closed position; and guide means for guiding the sliding movement of said cover member along said base member between said closed position and an open position where the cover member is freed of the base member to enable removal of the cover member after said cover member slides over only a small portion of the entire length of said base member.
Claim 3
Dependent Claim
58 words
Apparatus in accordance with claim 1 which also includes a hollow holder member of electrical insulating material within which the protection device is secured, said holder member being provided within said housing to enable insertion and removal of said device into and out of contact with electrical connectors on said base member by movement of said holder member.
Claim 4
Dependent Claim
35 words
Apparatus in accordance with claim 2 in which said holder member is a container of transparent plastic material and said electrical connector extends through an opening in said container into contact with the protection device.
Claim 5
Dependent Claim
53 words
Apparatus in accordance with claim 1 in which said cover member and base member each have a top portion and side portions on opposite sides of said top portion, and said automatic lock means includes means provided on the top portions of said cover member and said base member for locking them together.
Claim 6
Dependent Claim
48 words
Apparatus in accordance with claim 4 in which said lock means includes a projection on the top portion of said base member and a notch on the top portion of said cover member into which said projection extends when the cover member is locked to said base member.
Claim 7
Dependent Claim
38 words
Apparatus in accordance with claim 5 in which the lock means includes a curved cam surface on said cover member adjacent said notch which is engaged by said projection as it sLides into and out of said notch.
Claim 8
Dependent Claim
40 words
Apparatus in accordance with claim 4 in which said means also includes guide means provided on the side portions of said cover member and said base member for guiding the sliding movement of said cover member along said base member.
Claim 9
Dependent Claim
38 words
Apparatus in accordance with claim 1 in which said tapered shape enables said cover member to be freed from said base member in said open position before said cover member slides one-half the length of said base member.
Claim 10
Dependent Claim
128 words
An overvoltage protection apparatus in which the improvement comprises: a base member of electrical insulating material having spaced electrical contact thereon; an overvoltage protection device mounted on said base member in engagement with said contacts; a cover member releasably attached to said base member so that said cover member slides along the length of said base member between an open position and a closed position to form a housing containing said protection device; and a hollow holder member of electrical insulating material spearate from said cover member and having the protection device secured within said holder member by fixed holder means for holding said device to enable insertion and removal of said device into and out of engagement with said electrical contacts by movement of said holder member.
Claim 11
Dependent Claim
128 words
An overvoltage protection apparatus in which the improvement comprises: a base member of electrical insulating material having spaced electrical contact thereon; an overvoltage protection device mounted on said base member in engagement with said contacts; a cover member releasably attached to said base member so that said cover member slides along the length of said base member between an open position and a closed position to form a housing containing said protection device; and a hollow holder member of electrical insulating material spearate from said cover member and having the protection device secured within said holder member by fixed holder means for holding said device to enable insertion and removal of said device into and out of engagement with said electrical contacts by movement of said holder member.
Claim 12
Dependent Claim
35 words
Apparatus in accordance with claim 9 in which said holder member is a container of transparent plastic material and said electrical connectors extend through an opening in said container into contact with the protection device.
Claim 13
Dependent Claim
31 words
Apparatus in accordance with claim 9 in which said holder member is a container enclosing said device and said holder means is formed integral with the holder member within said container.
Claim 14
Dependent Claim
49 words
Apparatus in accordance with claim 11 in which the mounting means includes a pair of slots extending inward from said opening along the opposite ends of said container, and the terminals of said device are held in said slots by retaining projections extending from the bottom of said slots.
Claim 15
Dependent Claim
57 words
Apparatus in accordance with claim 12 in which the terminals of said device are provided with notches for the receipt of external contacts inserted through the opening in said container, and said container is provided with guide surfaces along the opposite sides of each slot in alignment with said notches for guiding said contacts into said notches.
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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) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |